[{"data":1,"prerenderedAt":143},["ShallowReactive",2],{"blog:pc-power-supply-connectors":3},{"meta":4,"html":50,"headings":51,"minutes":102,"related":103},{"slug":5,"status":6,"title":7,"seoTitle":8,"description":9,"datePublished":10,"dateModified":11,"aiNote":12,"tags":13,"related":22},"pc-power-supply-connectors","published","Every PC Power Supply Connector, Explained: from AT P8\u002FP9 to 12V-2x6","Every PC Power Supply Connector Explained (ATX to 12V-2x6)","All the cables a desktop power supply has had since 1984: pinouts, power limits, keying and what goes wrong, from AT P8\u002FP9 to 12V-2x6, with sources for every fact.","2026-10-24","2026-10-25","Researched with AI assistance (Gemini Deep Research) and checked by CircuitBase against Intel's ATX design guides, the IBM PC\u002FAT Technical Reference and connector manufacturer documents. Facts that come from forums, reviews or press are marked with their source.",[14,15,16,17,18,19,20,21],"PC power supply","ATX","12V-2x6","12VHPWR","PCIe power","SATA power","EPS12V","pinout",[23,26,28,30,32,34,36,38,40,42,44,46,48],{"domain":24,"slug":25},"connector","atx-24pin",{"domain":24,"slug":27},"atx-12v-4pin",{"domain":24,"slug":29},"eps-12v-8pin",{"domain":24,"slug":31},"pcie-6pin",{"domain":24,"slug":33},"pcie-8pin",{"domain":24,"slug":35},"12v-2x6",{"domain":24,"slug":37},"sata-power-15pin",{"domain":24,"slug":39},"molex-4pin",{"domain":24,"slug":41},"floppy-power-4pin",{"domain":24,"slug":43},"atx12vo-10pin",{"domain":24,"slug":45},"atx-aux-6pin",{"domain":24,"slug":47},"at-power-p8-p9",{"domain":24,"slug":49},"iec-c13-c14","\u003Cp>Every cable that leaves a PC power supply ends in a different plug, and every one of them was added to solve a specific problem: a processor that needed more current, a graphics card that outgrew its slot, a drive that had to be swapped while running. This guide shows how to recognise each plug, what it powers, how much power it may carry and what tends to go wrong with it.\u003C\u002Fp>\n\u003Cp>Pin numbers and ratings come from Intel's ATX design guides, the IBM PC\u002FAT Technical Reference and connector makers' documents. Where something comes from a review, a news story or a forum, we say so. Every connector links to its interactive pinout in the \u003Ca href=\"\u002Fconnector\">CircuitBase connector catalogue\u003C\u002Fa>.\u003C\u002Fp>\n\u003Ch2 id=\"quick-identification-guide\">Quick identification guide\u003C\u002Fh2>\n\u003Cdiv class=\"blog-table-wrap\">\u003Ctable class=\"blog-table\">\n\u003Cthead>\n\u003Ctr>\n\u003Cth>Plug\u003C\u002Fth>\n\u003Cth>How to recognise it\u003C\u002Fth>\n\u003Cth>Powers\u003C\u002Fth>\n\u003Cth>Limit\u003C\u002Fth>\n\u003C\u002Ftr>\n\u003C\u002Fthead>\n\u003Ctbody>\n\u003Ctr>\n\u003Ctd>\u003Ca href=\"\u002Fconnector\u002Fatx-24pin\">ATX 24-pin\u003C\u002Fa>\u003C\u002Ftd>\n\u003Ctd>The widest plug, 2 rows of 12, often split 20+4\u003C\u002Ftd>\n\u003Ctd>Motherboard\u003C\u002Ftd>\n\u003Ctd>—\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Ca href=\"\u002Fconnector\u002Fatx-12v-4pin\">CPU 4-pin (P4)\u003C\u002Fa>\u003C\u002Ftd>\n\u003Ctd>2 × 2, two yellow and two black wires\u003C\u002Ftd>\n\u003Ctd>Processor\u003C\u002Ftd>\n\u003Ctd>—\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Ca href=\"\u002Fconnector\u002Feps-12v-8pin\">CPU 8-pin (EPS12V)\u003C\u002Fa>\u003C\u002Ftd>\n\u003Ctd>2 × 4, often split 4+4, labelled CPU\u003C\u002Ftd>\n\u003Ctd>Processor\u003C\u002Ftd>\n\u003Ctd>—\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Ca href=\"\u002Fconnector\u002Fpcie-6pin\">PCIe 6-pin\u003C\u002Fa>\u003C\u002Ftd>\n\u003Ctd>2 × 3, labelled PCI-E\u003C\u002Ftd>\n\u003Ctd>Graphics card\u003C\u002Ftd>\n\u003Ctd>75 W\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Ca href=\"\u002Fconnector\u002Fpcie-8pin\">PCIe 8-pin (6+2)\u003C\u002Fa>\u003C\u002Ftd>\n\u003Ctd>2 × 4, a 6-pin block plus a clip-on 2-pin part\u003C\u002Ftd>\n\u003Ctd>Graphics card\u003C\u002Ftd>\n\u003Ctd>150 W\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Ca href=\"\u002Fconnector\u002F12v-2x6\">12V-2x6 \u002F 12VHPWR\u003C\u002Fa>\u003C\u002Ftd>\n\u003Ctd>Small 2 × 6 plug with 4 tiny pins underneath\u003C\u002Ftd>\n\u003Ctd>Graphics card\u003C\u002Ftd>\n\u003Ctd>600 W\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Ca href=\"\u002Fconnector\u002Fsata-power-15pin\">SATA power\u003C\u002Fa>\u003C\u002Ftd>\n\u003Ctd>Flat, L-shaped slot, 15 thin contacts\u003C\u002Ftd>\n\u003Ctd>Drives, fan hubs\u003C\u002Ftd>\n\u003Ctd>—\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Ca href=\"\u002Fconnector\u002Fmolex-4pin\">Peripheral 4-pin ("Molex")\u003C\u002Fa>\u003C\u002Ftd>\n\u003Ctd>White, 4 round pins in a row\u003C\u002Ftd>\n\u003Ctd>Pumps, fans, old drives\u003C\u002Ftd>\n\u003Ctd>—\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Ca href=\"\u002Fconnector\u002Ffloppy-power-4pin\">Floppy 4-pin ("Berg")\u003C\u002Fa>\u003C\u002Ftd>\n\u003Ctd>Small white plug, 4 contacts\u003C\u002Ftd>\n\u003Ctd>Floppy drives\u003C\u002Ftd>\n\u003Ctd>—\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Ca href=\"\u002Fconnector\u002Fatx12vo-10pin\">ATX12VO 10-pin\u003C\u002Fa>\u003C\u002Ftd>\n\u003Ctd>2 × 5, on 12 V-only systems\u003C\u002Ftd>\n\u003Ctd>Motherboard\u003C\u002Ftd>\n\u003Ctd>216–288 W\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Ca href=\"\u002Fconnector\u002Fatx-aux-6pin\">ATX AUX 6-pin\u003C\u002Fa>\u003C\u002Ftd>\n\u003Ctd>1 × 6, on late-1990s supplies\u003C\u002Ftd>\n\u003Ctd>Extra 3.3 V \u002F 5 V\u003C\u002Ftd>\n\u003Ctd>—\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Ca href=\"\u002Fconnector\u002Fat-power-p8-p9\">AT P8 + P9\u003C\u002Fa>\u003C\u002Ftd>\n\u003Ctd>Two flat 6-pin plugs side by side\u003C\u002Ftd>\n\u003Ctd>Whole board (pre-ATX)\u003C\u002Ftd>\n\u003Ctd>—\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003C\u002Ftbody>\n\u003C\u002Ftable>\n\u003C\u002Fdiv>\u003Cp>The supply itself is fed by an \u003Ca href=\"\u002Fconnector\u002Fiec-c13-c14\">IEC C13 mains cord\u003C\u002Fa>; everything that comes out of it is low-voltage DC.\u003C\u002Fp>\n\u003Cfigure class=\"blog-figure\">\u003Cimg src=\"\u002Fimages\u002Fblog\u002Fpc-power-supply-connectors\u002Ftimeline.svg\" alt=\"Timeline from AT P8\u002FP9 in 1984 to 12V-2x6 in 2023\" loading=\"lazy\" decoding=\"async\">\u003Cfigcaption>Forty years of PC power plugs. Each new connector followed a jump in what processors or graphics cards needed.\u003C\u002Ffigcaption>\u003C\u002Ffigure>\n\u003Ch2 id=\"atx-24-pin-the-motherboard-plug\">ATX 24-pin: the motherboard plug\u003C\u002Fh2>\n\u003Cfigure class=\"blog-figure\">\u003Cimg src=\"\u002Fimages\u002Fblog\u002Fpc-power-supply-connectors\u002Fatx-24pin.webp\" alt=\"ATX 24-pin power connector, 2 rows of 12 contacts\" loading=\"lazy\" decoding=\"async\">\u003Cfigcaption>ATX 24-pin main power plug. AI illustration.\u003C\u002Ffigcaption>\u003C\u002Ffigure>\n\u003Cp>The biggest plug feeds everything on the motherboard except the processor: chipset, memory, PCIe slots, USB.\u003C\u002Fp>\n\u003Cp>\u003Cstrong>What is on it\u003C\u002Fstrong> (Intel ATX 3.0 design guide):\u003C\u002Fp>\n\u003Cul>\n\u003Cli>four +3.3 V, five +5 V and two +12 V contacts, plus one −12 V\u003C\u002Fli>\n\u003Cli>\u003Cstrong>+5VSB\u003C\u002Fstrong> (purple): standby power that stays on while the PC is "off"\u003C\u002Fli>\n\u003Cli>\u003Cstrong>PS_ON#\u003C\u002Fstrong> (green): the switch line, the motherboard pulls it to ground to start the supply\u003C\u002Fli>\n\u003Cli>\u003Cstrong>PWR_OK\u003C\u002Fstrong> (gray): tells the board the voltages are stable\u003C\u002Fli>\n\u003Cli>grounds, and one \u003Cstrong>Reserved\u003C\u002Fstrong> position\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Cfigure class=\"blog-figure\">\u003Cimg src=\"\u002Fimages\u002Fblog\u002Fpc-power-supply-connectors\u002Fsocket-atx-24pin.webp\" alt=\"Empty ATX 24-pin socket on a motherboard\" loading=\"lazy\" decoding=\"async\">\u003Cfigcaption>Where it plugs in: the 24-pin socket at the edge of the motherboard. AI illustration.\u003C\u002Ffigcaption>\u003C\u002Ffigure>\n\u003Cp>\u003Cstrong>Why some cables are 20+4.\u003C\u002Fstrong> The plug started with 20 contacts in 1995. Intel's ATX 2.01 says it "combines all four of these connectors into a single 20-pin connector". Four more (+12 V, +3.3 V, +5 V, ground) arrived with ATX12V 2.0 for PCI Express slots, and the split plug still fits older boards.\u003C\u002Fp>\n\u003Cblockquote>\n\u003Cp>\u003Cstrong>Did you know?\u003C\u002Fstrong> Pin 20 is empty on purpose. On the 20-pin original that spot carried −5 V on a white wire (ATX 2.03); later supplies dropped −5 V and left the hole.\u003C\u002Fp>\n\u003C\u002Fblockquote>\n\u003Cblockquote>\n\u003Cp>\u003Cstrong>Did you know?\u003C\u002Fstrong> Pin 13 often has two wires: orange +3.3 V and a thin brown sense wire. Intel even specifies 22 AWG for that pin "for the +3.3 V supply and sense return wires combined". The supply uses it to measure the voltage at the board.\u003C\u002Fp>\n\u003C\u002Fblockquote>\n\u003Ch2 id=\"cpu-power-4-pin-and-8-pin\">CPU power: 4-pin and 8-pin\u003C\u002Fh2>\n\u003Cfigure class=\"blog-figure\">\u003Cimg src=\"\u002Fimages\u002Fblog\u002Fpc-power-supply-connectors\u002Feps-8pin.webp\" alt=\"EPS12V 8-pin CPU power connector split into two 4-pin halves\" loading=\"lazy\" decoding=\"async\">\u003Cfigcaption>EPS12V 8-pin CPU plug, split 4+4. AI illustration.\u003C\u002Ffigcaption>\u003C\u002Ffigure>\n\u003Cp>Around 2000 processors started to need more current than the main plug could give them, so Intel added a separate 12 V feed for the processor's voltage regulator.\u003C\u002Fp>\n\u003Cdiv class=\"blog-table-wrap\">\u003Ctable class=\"blog-table\">\n\u003Cthead>\n\u003Ctr>\n\u003Cth>\u003C\u002Fth>\n\u003Cth>\u003Ca href=\"\u002Fconnector\u002Fatx-12v-4pin\">4-pin (P4)\u003C\u002Fa>\u003C\u002Fth>\n\u003Cth>\u003Ca href=\"\u002Fconnector\u002Feps-12v-8pin\">8-pin (EPS12V)\u003C\u002Fa>\u003C\u002Fth>\n\u003C\u002Ftr>\n\u003C\u002Fthead>\n\u003Ctbody>\n\u003Ctr>\n\u003Ctd>+12 V contacts\u003C\u002Ftd>\n\u003Ctd>pins 3–4\u003C\u002Ftd>\n\u003Ctd>pins 5–8\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>Ground\u003C\u002Ftd>\n\u003Ctd>pins 1–2\u003C\u002Ftd>\n\u003Ctd>pins 1–4\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>Where you see it\u003C\u002Ftd>\n\u003Ctd>older and entry-level boards\u003C\u002Ftd>\n\u003Ctd>almost every board today\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003C\u002Ftbody>\n\u003C\u002Ftable>\n\u003C\u002Fdiv>\u003Cfigure class=\"blog-figure\">\u003Cimg src=\"\u002Fimages\u002Fblog\u002Fpc-power-supply-connectors\u002Fsocket-cpu-8pin.webp\" alt=\"Empty CPU 8-pin socket on a motherboard\" loading=\"lazy\" decoding=\"async\">\u003Cfigcaption>Where it plugs in: the CPU socket sits near the top edge of the board, next to the processor's voltage regulator. AI illustration.\u003C\u002Ffigcaption>\u003C\u002Ffigure>\n\u003Cul>\n\u003Cli>Most supply cables split the 8-pin plug into \u003Cstrong>4+4\u003C\u002Fstrong>, so one half still fits a 4-pin board.\u003C\u002Fli>\n\u003Cli>High-end boards often have \u003Cstrong>two\u003C\u002Fstrong> CPU sockets (8+8 or 8+4). Corsair says one CPU cable is usually enough outside extreme overclocking; follow your motherboard manual for which sockets must be connected.\u003C\u002Fli>\n\u003Cli>Builders on Reddit point out that the detachable half often has all four cavities rounded, so it fits either half of the socket.\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Ch2 id=\"graphics-cards-pcie-6-pin-and-8-pin\">Graphics cards: PCIe 6-pin and 8-pin\u003C\u002Fh2>\n\u003Cfigure class=\"blog-figure\">\u003Cimg src=\"\u002Fimages\u002Fblog\u002Fpc-power-supply-connectors\u002Fpcie-6pin.webp\" alt=\"PCIe 6-pin graphics card power connector\" loading=\"lazy\" decoding=\"async\">\u003Cfigcaption>PCIe 6-pin (75 W). AI illustration.\u003C\u002Ffigcaption>\u003C\u002Ffigure>\n\u003Cp>A PCIe x16 slot gives a graphics card 75 W. Cards that need more take it from these plugs. The surprise is in the pinout:\u003C\u002Fp>\n\u003Cfigure class=\"blog-figure\">\u003Cimg src=\"\u002Fimages\u002Fblog\u002Fpc-power-supply-connectors\u002Fpcie-6-vs-8.svg\" alt=\"PCIe 6-pin and 8-pin pin maps\" loading=\"lazy\" decoding=\"async\">\u003Cfigcaption>The 8-pin plug has the same three +12 V contacts as the 6-pin one. The extra two pins are a ground and SENSE1, which tells the card it may draw 150 W.\u003C\u002Ffigcaption>\u003C\u002Ffigure>\n\u003Cp>\u003Cstrong>How the card knows what is plugged in\u003C\u002Fstrong> (Intel ATX 3.0 design guide, table 5-6):\u003C\u002Fp>\n\u003Cdiv class=\"blog-table-wrap\">\u003Ctable class=\"blog-table\">\n\u003Cthead>\n\u003Ctr>\n\u003Cth>SENSE1 (pin 4)\u003C\u002Fth>\n\u003Cth>SENSE0 (pin 6)\u003C\u002Fth>\n\u003Cth>Meaning\u003C\u002Fth>\n\u003C\u002Ftr>\n\u003C\u002Fthead>\n\u003Ctbody>\n\u003Ctr>\n\u003Ctd>open\u003C\u002Ftd>\n\u003Ctd>ground\u003C\u002Ftd>\n\u003Ctd>6-pin plug, up to 75 W\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>ground\u003C\u002Ftd>\n\u003Ctd>ground\u003C\u002Ftd>\n\u003Ctd>8-pin plug, up to 150 W\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>open\u003C\u002Ftd>\n\u003Ctd>open\u003C\u002Ftd>\n\u003Ctd>nothing plugged in\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003C\u002Ftbody>\n\u003C\u002Ftable>\n\u003C\u002Fdiv>\u003Cp>So why does doubling the power not need more wires? Because the standard leaves a lot of room. Intel rates the contacts at 8.0 A each in the 6-pin plug and 7.0 A in the 8-pin plug:\u003C\u002Fp>\n\u003Cfigure class=\"blog-figure\">\u003Cimg src=\"\u002Fimages\u002Fblog\u002Fpc-power-supply-connectors\u002Fheadroom.svg\" alt=\"Bar chart of allowed power versus contact capacity\" loading=\"lazy\" decoding=\"async\">\u003Cfigcaption>Allowed power (red) versus the +12 V contacts' current rating at 12 V under Intel's test conditions (gray). The gray bar is not a usable rating for the whole cable: the limits stay 75, 150 and 600 W.\u003C\u002Ffigcaption>\u003C\u002Ffigure>\u003Cfigure class=\"blog-figure\">\u003Cimg src=\"\u002Fimages\u002Fblog\u002Fpc-power-supply-connectors\u002Fpcie-8pin.webp\" alt=\"PCIe 8-pin graphics card connector made of a 6-pin block and a 2-pin clip\" loading=\"lazy\" decoding=\"async\">\u003Cfigcaption>PCIe 8-pin as a 6+2 plug. AI illustration.\u003C\u002Ffigcaption>\u003C\u002Ffigure>\u003Cfigure class=\"blog-figure\">\u003Cimg src=\"\u002Fimages\u002Fblog\u002Fpc-power-supply-connectors\u002Fsocket-gpu-6-8.webp\" alt=\"Graphics card with one 6-pin and one 8-pin power socket\" loading=\"lazy\" decoding=\"async\">\u003Cfigcaption>Where they plug in: a graphics card with one 6-pin and one 8-pin socket. Slot 75 W + 6-pin 75 W + 8-pin 150 W = 300 W. AI illustration.\u003C\u002Ffigcaption>\u003C\u002Ffigure>\n\u003Cp>\u003Cstrong>Tips from builders and cable makers\u003C\u002Fstrong> (not from the standard):\u003C\u002Fp>\n\u003Cul>\n\u003Cli>A 6+2 plug is just as good as a solid 8-pin one; the split only lets it fit 6-pin cards.\u003C\u002Fli>\n\u003Cli>Many supplies put two plugs on one cable ("pigtail"). For cards above 225 W, Seasonic recommends a separate PCIe cable for each socket; follow your card and supply makers' instructions.\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Ch3 id=\"never-swap-cpu-and-graphics-8-pin-plugs\">Never swap CPU and graphics 8-pin plugs\u003C\u002Fh3>\n\u003Cfigure class=\"blog-figure\">\u003Cimg src=\"\u002Fimages\u002Fblog\u002Fpc-power-supply-connectors\u002Feps-vs-pcie.svg\" alt=\"EPS12V and PCIe 8-pin pin maps side by side\" loading=\"lazy\" decoding=\"async\">\u003Cfigcaption>CPU and PCIe 8-pin plugs put +12 V on opposite rows. In the wrong socket, +12 V meets ground.\u003C\u002Ffigcaption>\u003C\u002Ffigure>\n\u003Cp>Both have 8 contacts and look almost the same. The housings are keyed differently, but users on Reddit's r\u002Fhomelab report that only one or two cavity shapes differ and that a soft nylon plug can be forced in. \u003Cstrong>If a plug needs force, stop and read the label: CPU or PCI-E.\u003C\u002Fstrong>\u003C\u002Fp>\n\u003Cp>The same mix-up catches people who buy used data-centre graphics cards: according to those discussions, NVIDIA's server cards such as the Tesla M40 take power through a CPU-style EPS socket.\u003C\u002Fp>\n\u003Ch2 id=\"12v-2x6-12vhpwr-600-w-through-one-plug\">12V-2x6 (12VHPWR): 600 W through one plug\u003C\u002Fh2>\n\u003Cp>Flagship graphics cards outgrew even three 8-pin plugs, so PCI-SIG introduced a single 16-pin connector in 2021: \u003Cstrong>12VHPWR\u003C\u002Fstrong>. Its current version, \u003Ca href=\"\u002Fconnector\u002F12v-2x6\">12V-2x6\u003C\u002Fa>, is described in Intel's ATX12VO design guide (revision 2.11):\u003C\u002Fp>\n\u003Cfigure class=\"blog-figure\">\u003Cimg src=\"\u002Fimages\u002Fblog\u002Fpc-power-supply-connectors\u002F12v-2x6-header.svg\" alt=\"12V-2x6 header front view\" loading=\"lazy\" decoding=\"async\">\u003Cfigcaption>The 12V-2x6 header on a graphics card: ground row under the latch, +12 V row below it, four small sideband pins at the bottom.\u003C\u002Ffigcaption>\u003C\u002Ffigure>\n\u003Cul>\n\u003Cli>12 power contacts on a 3.0 mm pitch: six +12 V and six ground, on 16 AWG wire\u003C\u002Fli>\n\u003Cli>4 small \u003Cstrong>sideband\u003C\u002Fstrong> contacts that talk to the card and the supply\u003C\u002Fli>\n\u003Cli>each power contact rated \u003Cstrong>9.2 A\u003C\u002Fstrong>\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Cp>The two SENSE pins set the card's power budget. This is the 12V-2x6 table (Intel ATX 3.0 design guide rev 2.1, table 3-6); the 0 W row is new in 12V-2x6:\u003C\u002Fp>\n\u003Cdiv class=\"blog-table-wrap\">\u003Ctable class=\"blog-table\">\n\u003Cthead>\n\u003Ctr>\n\u003Cth>SENSE0\u003C\u002Fth>\n\u003Cth>SENSE1\u003C\u002Fth>\n\u003Cth>At power-up\u003C\u002Fth>\n\u003Cth>After setup\u003C\u002Fth>\n\u003C\u002Ftr>\n\u003C\u002Fthead>\n\u003Ctbody>\n\u003Ctr>\n\u003Ctd>ground\u003C\u002Ftd>\n\u003Ctd>ground\u003C\u002Ftd>\n\u003Ctd>375 W\u003C\u002Ftd>\n\u003Ctd>600 W\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>open\u003C\u002Ftd>\n\u003Ctd>ground\u003C\u002Ftd>\n\u003Ctd>225 W\u003C\u002Ftd>\n\u003Ctd>450 W\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>ground\u003C\u002Ftd>\n\u003Ctd>open\u003C\u002Ftd>\n\u003Ctd>150 W\u003C\u002Ftd>\n\u003Ctd>300 W\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>shorted together\u003C\u002Ftd>\n\u003Ctd>\u003C\u002Ftd>\n\u003Ctd>100 W\u003C\u002Ftd>\n\u003Ctd>150 W\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>open\u003C\u002Ftd>\n\u003Ctd>open\u003C\u002Ftd>\n\u003Ctd>\u003Cstrong>0 W\u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd>\u003Cstrong>0 W\u003C\u002Fstrong>\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003C\u002Ftbody>\n\u003C\u002Ftable>\n\u003C\u002Fdiv>\u003Ch3 id=\"why-early-plugs-melted\">Why early plugs melted\u003C\u002Fh3>\n\u003Cp>With equal sharing, at 600 W each +12 V contact carries about \u003Cstrong>8.3 A\u003C\u002Fstrong> against a \u003Cstrong>9.2 A\u003C\u002Fstrong> rating, about 90 % of it. The 8-pin PCIe plug at its 150 W limit uses about 60 % of its 7.0 A rating.\u003C\u002Fp>\n\u003Cul>\n\u003Cli>\u003Cstrong>August 2022.\u003C\u002Fstrong> According to Gamers Nexus, PCI-SIG warned its members after lab samples melted.\u003C\u002Fli>\n\u003Cli>\u003Cstrong>From October 2022.\u003C\u002Fstrong> Owners of new high-end cards report melted plugs. Gamers Nexus reproduces failures in its lab; Igor's Lab looks inside the adapters.\u003C\u002Fli>\n\u003Cli>\u003Cstrong>November 2022.\u003C\u002Fstrong> In its update on the reports it was investigating, NVIDIA said that "a common issue is that connectors are not fully plugged into the graphics card". Less contact area means more heat.\u003C\u002Fli>\n\u003Cli>\u003Cstrong>Later.\u003C\u002Fstrong> Gamers Nexus covers CableMod's recall of its angled adapters.\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Ch3 id=\"what-12v-2x6-changed-2023\">What 12V-2x6 changed (2023)\u003C\u002Fh3>\n\u003Cp>Intel's guide describes the fix in one line: "the power pins have been lengthened and the sideband pins have been shortened in the PCB Header".\u003C\u002Fp>\n\u003Col>\n\u003Cli>The power pins touch first; the shorter sense pins connect only after the power pins are sufficiently mated.\u003C\u002Fli>\n\u003Cli>A new \u003Cstrong>0 W\u003C\u002Fstrong> state: if both SENSE pins are open, a compliant card must not draw power through the cable. Push the plug fully home anyway.\u003C\u002Fli>\n\u003Cli>New headers are marked \u003Cstrong>H++\u003C\u002Fstrong> instead of H+. The cable plug did not change mechanically, but use a cable approved for your supply and card.\u003C\u002Fli>\n\u003C\u002Fol>\n\u003Cp>Press reports give the change as about 1.5 mm shorter sense pins and 0.25 mm longer power pins. The often-quoted "30 plug cycles" comes from Intel's contact-resistance test, which checks the plug after 30 insertions.\u003C\u002Fp>\n\u003Ch2 id=\"sata-power-15-pins-for-three-voltages\">SATA power: 15 pins for three voltages\u003C\u002Fh2>\n\u003Cfigure class=\"blog-figure\">\u003Cimg src=\"\u002Fimages\u002Fblog\u002Fpc-power-supply-connectors\u002Fsata-power-v2.webp\" alt=\"SATA power connector with an L-shaped slot\" loading=\"lazy\" decoding=\"async\">\u003Cfigcaption>SATA power plug: smooth housing, L-shaped key at one end of the slot. AI illustration.\u003C\u002Ffigcaption>\u003C\u002Ffigure>\n\u003Cp>The flat SATA plug feeds drives and fan or lighting hubs. Fifteen contacts sound like a lot, but there are only three voltages: \u003Cstrong>+3.3 V, +5 V and +12 V, three contacts each\u003C\u002Fstrong>, plus grounds. The contacts are tiny, so each voltage uses three in parallel.\u003C\u002Fp>\n\u003Cul>\n\u003Cli>\u003Cstrong>Made for hot-swap bays.\u003C\u002Fstrong> Drive datasheets show contacts of different lengths: ground first, then precharge, then the remaining power. That supports hot swapping in systems designed for it; in an ordinary PC, shut down and unplug before changing drive cables.\u003C\u002Fli>\n\u003Cli>\u003Cstrong>3.3 V is optional now.\u003C\u002Fstrong> Intel: "+3.3V DC is removed from SATA V3.2 spec. but it is recommended if there is backward compatibility concern."\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Cblockquote>\n\u003Cp>\u003Cstrong>The pin 3 trap.\u003C\u002Fstrong> Newer SATA revisions turned pin 3 into \u003Cstrong>PWDIS\u003C\u002Fstrong>, a power-disable input for data-centre drives. Western Digital documents it: on drives with Power Disable, voltage on pin 3 can hold the drive off. TrueNAS users report isolating that pin as a workaround for drives taken out of external enclosures. Check your exact drive and use a compatible power connection.\u003C\u002Fp>\n\u003C\u002Fblockquote>\n\u003Cblockquote>\n\u003Cp>\u003Cstrong>"Molex to SATA, lose all your data."\u003C\u002Fstrong> Builders use this saying to warn about cheap Molex-to-SATA adapters, especially injection-moulded ones. It is not a safety test of every adapter: the safest choice is a power cable approved for your supply.\u003C\u002Fp>\n\u003C\u002Fblockquote>\n\u003Ch2 id=\"molex-and-floppy-the-veterans\">Molex and floppy: the veterans\u003C\u002Fh2>\n\u003Cdiv class=\"blog-table-wrap\">\u003Ctable class=\"blog-table\">\n\u003Cthead>\n\u003Ctr>\n\u003Cth>\u003C\u002Fth>\n\u003Cth>\u003Ca href=\"\u002Fconnector\u002Fmolex-4pin\">Peripheral 4-pin ("Molex")\u003C\u002Fa>\u003C\u002Fth>\n\u003Cth>\u003Ca href=\"\u002Fconnector\u002Ffloppy-power-4pin\">Floppy 4-pin ("Berg")\u003C\u002Fa>\u003C\u002Fth>\n\u003C\u002Ftr>\n\u003C\u002Fthead>\n\u003Ctbody>\n\u003Ctr>\n\u003Ctd>Pin 1\u003C\u002Ftd>\n\u003Ctd>+12 V (yellow)\u003C\u002Ftd>\n\u003Ctd>+5 V (red)\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>Pins 2–3\u003C\u002Ftd>\n\u003Ctd>ground\u003C\u002Ftd>\n\u003Ctd>ground\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>Pin 4\u003C\u002Ftd>\n\u003Ctd>+5 V (red)\u003C\u002Ftd>\n\u003Ctd>+12 V (yellow)\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>Pitch\u003C\u002Ftd>\n\u003Ctd>5.08 mm\u003C\u002Ftd>\n\u003Ctd>2.5 mm\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>Status\u003C\u002Ftd>\n\u003Ctd>still on new supplies\u003C\u002Ftd>\n\u003Ctd>Intel: "Do Not Include (For Historical Reference Only)"\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003C\u002Ftbody>\n\u003C\u002Ftable>\n\u003C\u002Fdiv>\u003Cfigure class=\"blog-figure\">\u003Cimg src=\"\u002Fimages\u002Fblog\u002Fpc-power-supply-connectors\u002Fmolex-4pin.webp\" alt=\"Peripheral 4-pin connector with yellow, black and red wires\" loading=\"lazy\" decoding=\"async\">\u003Cfigcaption>The 4-pin peripheral plug everyone calls Molex. AI illustration.\u003C\u002Ffigcaption>\u003C\u002Ffigure>\u003Cfigure class=\"blog-figure\">\u003Cimg src=\"\u002Fimages\u002Fblog\u002Fpc-power-supply-connectors\u002Ffloppy-4pin.webp\" alt=\"Small white floppy power connector\" loading=\"lazy\" decoding=\"async\">\u003Cfigcaption>Floppy drive power plug: same voltages, opposite order. AI illustration.\u003C\u002Ffigcaption>\u003C\u002Ffigure>\n\u003Cblockquote>\n\u003Cp>\u003Cstrong>Did you know?\u003C\u002Fstrong> Everyone calls it Molex, but Intel's guide lists it as "AMP 1-480424-0 or Molex 15-24-4048": both companies make it. Its pins float in their holes to self-align, which is why it is famously hard to plug in.\u003C\u002Fp>\n\u003C\u002Fblockquote>\n\u003Ch2 id=\"atx12vo-when-the-supply-only-makes-12-v\">ATX12VO: when the supply only makes 12 V\u003C\u002Fh2>\n\u003Cp>In 2019 Intel published \u003Cstrong>ATX12VO\u003C\u002Fstrong>: the power supply makes only 12 V and the motherboard creates its own 5 V and 3.3 V. Gamers Nexus explains the motive: lower idle power for stricter energy rules. The 24-pin plug becomes a \u003Ca href=\"\u002Fconnector\u002Fatx12vo-10pin\">10-pin one\u003C\u002Fa> (Intel ATX12VO design guide, table 5-2):\u003C\u002Fp>\n\u003Cdiv class=\"blog-table-wrap\">\u003Ctable class=\"blog-table\">\n\u003Cthead>\n\u003Ctr>\n\u003Cth>Pin\u003C\u002Fth>\n\u003Cth>Signal\u003C\u002Fth>\n\u003Cth>Pin\u003C\u002Fth>\n\u003Cth>Signal\u003C\u002Fth>\n\u003C\u002Ftr>\n\u003C\u002Fthead>\n\u003Ctbody>\n\u003Ctr>\n\u003Ctd>1\u003C\u002Ftd>\n\u003Ctd>PS_ON#\u003C\u002Ftd>\n\u003Ctd>6\u003C\u002Ftd>\n\u003Ctd>PWR_OK\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>2\u003C\u002Ftd>\n\u003Ctd>ground\u003C\u002Ftd>\n\u003Ctd>7\u003C\u002Ftd>\n\u003Ctd>\u003Cstrong>+12 V standby\u003C\u002Fstrong>\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>3\u003C\u002Ftd>\n\u003Ctd>ground\u003C\u002Ftd>\n\u003Ctd>8\u003C\u002Ftd>\n\u003Ctd>+12 V\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>4\u003C\u002Ftd>\n\u003Ctd>ground\u003C\u002Ftd>\n\u003Ctd>9\u003C\u002Ftd>\n\u003Ctd>+12 V\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>5\u003C\u002Ftd>\n\u003Ctd>I_PSU% (load in %)\u003C\u002Ftd>\n\u003Ctd>10\u003C\u002Ftd>\n\u003Ctd>+12 V (+ sense wire)\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003C\u002Ftbody>\n\u003C\u002Ftable>\n\u003C\u002Fdiv>\u003Cul>\n\u003Cli>Intel rates it at \u003Cstrong>216–288 W\u003C\u002Fstrong> (6–8 A per contact); bigger boards add an extra connector.\u003C\u002Fli>\n\u003Cli>SATA drives get their 5 V from small headers on the motherboard.\u003C\u002Fli>\n\u003Cli>The standby rail is 12 V, not 5 V, so an ordinary supply cannot be adapted with wires alone. Users on the Linus Tech Tips forum describe a Corsair adapter cable (CP-8920272) with a small 5-to-12 V converter inside.\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Ch2 id=\"modular-cables-do-not-mix\">Modular cables do not mix\u003C\u002Fh2>\n\u003Cp>On a modular supply the cables also unplug at the supply end. The device end follows the standards above; \u003Cstrong>the supply end follows none\u003C\u002Fstrong>, and every brand, sometimes every model line, wires it differently.\u003C\u002Fp>\n\u003Cul>\n\u003Cli>A cable from another supply may fit perfectly and still put 12 V where a drive expects 5 V.\u003C\u002Fli>\n\u003Cli>Builders on Reddit's r\u002Fbuildapc warn, from experience: never reuse modular cables from another supply.\u003C\u002Fli>\n\u003Cli>Use the cables that came in the box, or ones the manufacturer lists as compatible.\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Ch2 id=\"before-atx-at-p8p9-and-the-aux-plug\">Before ATX: AT P8\u002FP9 and the AUX plug\u003C\u002Fh2>\n\u003Cp>The IBM PC\u002FAT of 1984 powered its motherboard through two identical 6-pin plugs side by side (IBM Technical Reference, page 1-57):\u003C\u002Fp>\n\u003Cfigure class=\"blog-figure\">\u003Cimg src=\"\u002Fimages\u002Fblog\u002Fpc-power-supply-connectors\u002Fat-p8-p9.svg\" alt=\"AT P8 and P9 pin maps with the grounds in the middle\" loading=\"lazy\" decoding=\"async\">\u003Cfigcaption>AT P8 and P9: fitted correctly, the four grounds sit together in the middle.\u003C\u002Ffigcaption>\u003C\u002Ffigure>\n\u003Cul>\n\u003Cli>Nothing stopped you from swapping them, and a swapped pair put the wrong voltages on the board. Technicians learned the rule \u003Cstrong>"black wires together"\u003C\u002Fstrong>.\u003C\u002Fli>\n\u003Cli>AT supplies had no soft power: the front power switch carried mains voltage.\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Cp>ATX replaced both plugs in 1995. For a few years demanding boards also took an \u003Ca href=\"\u002Fconnector\u002Fatx-aux-6pin\">ATX AUX 6-pin\u003C\u002Fa> plug, added in ATX 2.02 and recommended in ATX 2.03 (1998) for "250 W and 300 W configurations": three grounds, two 3.3 V and one 5 V. It disappeared when processors moved to their own 12 V plug.\u003C\u002Fp>\n\u003Ch2 id=\"myths-and-facts\">Myths and facts\u003C\u002Fh2>\n\u003Cdiv class=\"blog-table-wrap\">\u003Ctable class=\"blog-table\">\n\u003Cthead>\n\u003Ctr>\n\u003Cth>Myth\u003C\u002Fth>\n\u003Cth>Fact\u003C\u002Fth>\n\u003C\u002Ftr>\n\u003C\u002Fthead>\n\u003Ctbody>\n\u003Ctr>\n\u003Ctd>"The 8-pin PCIe plug has more +12 V wires than the 6-pin."\u003C\u002Ftd>\n\u003Ctd>Same three +12 V contacts; the extra pins are a ground and a sense line.\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>"A 6+2 plug is weaker than a solid 8-pin."\u003C\u002Ftd>\n\u003Ctd>Same contacts, same 150 W; the split only adds compatibility.\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>"The empty hole in my 24-pin cable is a defect."\u003C\u002Ftd>\n\u003Ctd>Pin 20 is Reserved; it once carried −5 V.\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>"A 600 W cable pushes 600 W into the card."\u003C\u002Ftd>\n\u003Ctd>The SENSE pins only set a limit; the card draws what it needs.\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>"12V-2x6 needs a new cable."\u003C\u002Ftd>\n\u003Ctd>The change is in the header on the card and supply; 12VHPWR cables fit.\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>"If a modular cable fits, it is compatible."\u003C\u002Ftd>\n\u003Ctd>Supply-side pinouts are not standardised.\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003C\u002Ftbody>\n\u003C\u002Ftable>\n\u003C\u002Fdiv>\u003Ch2 id=\"safety-checklist\">Safety checklist\u003C\u002Fh2>\n\u003Cul>\n\u003Cli>\u003Cstrong>Never open a power supply.\u003C\u002Fstrong> The cables carry 12 V or less, but inside the box mains is turned into several hundred volts stored in large capacitors that can stay charged after unplugging.\u003C\u002Fli>\n\u003Cli>\u003Cstrong>Testing a supply.\u003C\u002Fstrong> The green PS_ON# line is what a power-supply test jumper uses, but this article is not a test procedure: follow your supply maker's instructions for your exact model.\u003C\u002Fli>\n\u003Cli>\u003Cstrong>Never force a plug.\u003C\u002Fstrong> If it does not slide in, it is probably the wrong one.\u003C\u002Fli>\n\u003Cli>\u003Cstrong>Do not mix modular cables\u003C\u002Fstrong> from different supplies.\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Ch2 id=\"sources\">Sources\u003C\u002Fh2>\n\u003Cp>\u003Cstrong>Primary documents\u003C\u002Fstrong>\u003C\u002Fp>\n\u003Cul>\n\u003Cli>\u003Ca href=\"https:\u002F\u002Fedc.intel.com\u002Fcontent\u002Fwww\u002Fus\u002Fen\u002Fdesign\u002Fipla\u002Fsoftware-development-platforms\u002Fclient\u002Fplatforms\u002Falder-lake-desktop\u002Fatx-version-3-0-multi-rail-desktop-platform-power-supply-design-guide\u002F2.1\u002F\" rel=\"noopener\" target=\"_blank\">Intel ATX 3.0 Multi-Rail Desktop Platform Power Supply Design Guide (336521)\u003C\u002Fa>: main, CPU, PCIe, SATA and peripheral connectors; 12V-2x6 power limits.\u003C\u002Fli>\n\u003Cli>\u003Ca href=\"https:\u002F\u002Fcdrdv2-public.intel.com\u002F613768\u002F613768_2.11.pdf\" rel=\"noopener\" target=\"_blank\">Intel ATX12VO Desktop Power Supply Design Guide, revision 2.11\u003C\u002Fa>: ATX12VO 10-pin; 12V-2x6 pinout and header changes.\u003C\u002Fli>\n\u003Cli>\u003Ca href=\"https:\u002F\u002Fbitsavers.org\u002Fpdf\u002Fintel\u002FATX\u002FATX_Specification_2_03_199812.pdf\" rel=\"noopener\" target=\"_blank\">Intel ATX Specification 2.03\u003C\u002Fa> and \u003Ca href=\"https:\u002F\u002Fbitsavers.org\u002Fpdf\u002Fintel\u002FATX\u002FATX_Specification_2.01_199702.PDF\" rel=\"noopener\" target=\"_blank\">2.01\u003C\u002Fa>: 20-pin plug, −5 V, PS_ON#, AUX connector.\u003C\u002Fli>\n\u003Cli>\u003Ca href=\"https:\u002F\u002Fbitsavers.org\u002Fpdf\u002Fibm\u002Fpc\u002Fat\u002F1502494_PC_AT_Technical_Reference_Mar84.pdf\" rel=\"noopener\" target=\"_blank\">IBM Personal Computer AT Technical Reference (1984)\u003C\u002Fa>: P8 and P9.\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Cp>\u003Cstrong>Manufacturer guidance\u003C\u002Fstrong>\u003C\u002Fp>\n\u003Cul>\n\u003Cli>\u003Ca href=\"https:\u002F\u002Fnvidia.custhelp.com\u002Fapp\u002Fanswers\u002Fdetail\u002Fa_id\u002F5413\u002Fkw\u002Fplatform\" rel=\"noopener\" target=\"_blank\">NVIDIA: 12VHPWR connector update (November 2022)\u003C\u002Fa>\u003C\u002Fli>\n\u003Cli>\u003Ca href=\"https:\u002F\u002Fdocuments.westerndigital.com\u002Fcontent\u002Fdam\u002Fdoc-library\u002Fen_us\u002Fassets\u002Fpublic\u002Fwestern-digital\u002Fcollateral\u002Ftech-brief\u002Ftech-brief-western-digital-power-disable-pin.pdf\" rel=\"noopener\" target=\"_blank\">Western Digital: Power Disable pin\u003C\u002Fa>\u003C\u002Fli>\n\u003Cli>\u003Ca href=\"https:\u002F\u002Fknowledge.seasonic.com\u002Farticle\u002F8-installation-remark-for-high-power-consumption-graphics-cards\" rel=\"noopener\" target=\"_blank\">Seasonic: high-power graphics card cabling\u003C\u002Fa>\u003C\u002Fli>\n\u003Cli>\u003Ca href=\"https:\u002F\u002Fwww.corsair.com\u002Fus\u002Fen\u002Fexplorer\u002Fdiy-builder\u002Fpower-supply-units\u002Fdo-i-need-to-plug-in-both-cpu-power-cables\u002F\" rel=\"noopener\" target=\"_blank\">Corsair: do I need both CPU power cables?\u003C\u002Fa>\u003C\u002Fli>\n\u003Cli>\u003Ca href=\"https:\u002F\u002Fwww.asus.com\u002Fus\u002Fsupport\u002Ffaq\u002F1056866\u002F\" rel=\"noopener\" target=\"_blank\">ASUS: modular PSU cables\u003C\u002Fa>\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Cp>\u003Cstrong>Reviews, press and community\u003C\u002Fstrong>\u003C\u002Fp>\n\u003Cul>\n\u003Cli>\u003Ca href=\"https:\u002F\u002Fgamersnexus.net\u002Fgpus\u002F12vhpwr-dumpster-fire-investigation-contradicting-specs-corner-cutting\" rel=\"noopener\" target=\"_blank\">Gamers Nexus: 12VHPWR investigation\u003C\u002Fa>\u003C\u002Fli>\n\u003Cli>\u003Ca href=\"https:\u002F\u002Fhwbusters.com\u002Fpsus\u002Fatx-v3-1-pcie-cem-5-1-are-official\u002F\" rel=\"noopener\" target=\"_blank\">Hardware Busters: ATX 3.1 and PCIe CEM 5.1\u003C\u002Fa>\u003C\u002Fli>\n\u003Cli>\u003Ca href=\"https:\u002F\u002Fwww.reddit.com\u002Fr\u002Fhomelab\u002Fcomments\u002F1q85yzk\u002Fconnected_my_nvidia_tesla_m40_to_power_and\u002F\" rel=\"noopener\" target=\"_blank\">Reddit r\u002Fhomelab: EPS vs PCIe on a Tesla M40\u003C\u002Fa>\u003C\u002Fli>\n\u003Cli>\u003Ca href=\"https:\u002F\u002Fwww.reddit.com\u002Fr\u002Fbuildapc\u002Fcomments\u002Fo1ewgf\u002Ffriendly_reminder_never_never_reuse_the_cables\u002F\" rel=\"noopener\" target=\"_blank\">Reddit r\u002Fbuildapc: never reuse modular cables\u003C\u002Fa>\u003C\u002Fli>\n\u003Cli>\u003Ca href=\"https:\u002F\u002Fwww.truenas.com\u002Fcommunity\u002Fthreads\u002Fpwdis-feature-in-new-sata-drives-to-watch-for.60174\" rel=\"noopener\" target=\"_blank\">TrueNAS forum: PWDIS in new SATA drives\u003C\u002Fa>\u003C\u002Fli>\n\u003Cli>\u003Ca href=\"https:\u002F\u002Fpinoutguide.com\u002FPower\u002F\" rel=\"noopener\" target=\"_blank\">pinoutguide.com power connector pinouts\u003C\u002Fa> (cross-check)\u003C\u002Fli>\n\u003C\u002Ful>\n",[52,56,59,62,65,69,72,75,78,81,84,87,90,93,96,99],{"id":53,"text":54,"level":55},"quick-identification-guide","Quick identification guide",2,{"id":57,"text":58,"level":55},"atx-24-pin-the-motherboard-plug","ATX 24-pin: the motherboard plug",{"id":60,"text":61,"level":55},"cpu-power-4-pin-and-8-pin","CPU power: 4-pin and 8-pin",{"id":63,"text":64,"level":55},"graphics-cards-pcie-6-pin-and-8-pin","Graphics cards: PCIe 6-pin and 8-pin",{"id":66,"text":67,"level":68},"never-swap-cpu-and-graphics-8-pin-plugs","Never swap CPU and graphics 8-pin plugs",3,{"id":70,"text":71,"level":55},"12v-2x6-12vhpwr-600-w-through-one-plug","12V-2x6 (12VHPWR): 600 W through one plug",{"id":73,"text":74,"level":68},"why-early-plugs-melted","Why early plugs melted",{"id":76,"text":77,"level":68},"what-12v-2x6-changed-2023","What 12V-2x6 changed (2023)",{"id":79,"text":80,"level":55},"sata-power-15-pins-for-three-voltages","SATA power: 15 pins for three voltages",{"id":82,"text":83,"level":55},"molex-and-floppy-the-veterans","Molex and floppy: the veterans",{"id":85,"text":86,"level":55},"atx12vo-when-the-supply-only-makes-12-v","ATX12VO: when the supply only makes 12 V",{"id":88,"text":89,"level":55},"modular-cables-do-not-mix","Modular cables do not mix",{"id":91,"text":92,"level":55},"before-atx-at-p8p9-and-the-aux-plug","Before ATX: AT P8\u002FP9 and the AUX plug",{"id":94,"text":95,"level":55},"myths-and-facts","Myths and facts",{"id":97,"text":98,"level":55},"safety-checklist","Safety checklist",{"id":100,"text":101,"level":55},"sources","Sources",14,[104,107,110,113,116,119,122,125,128,131,134,137,140],{"domain":24,"slug":25,"name":105,"path":106},"ATX 24-Pin Power Supply Connector","\u002Fconnector\u002Fatx-24pin",{"domain":24,"slug":27,"name":108,"path":109},"ATX-12V 4-Pin CPU Power Connector","\u002Fconnector\u002Fatx-12v-4pin",{"domain":24,"slug":29,"name":111,"path":112},"EPS12V 8-Pin CPU Power Connector","\u002Fconnector\u002Feps-12v-8pin",{"domain":24,"slug":31,"name":114,"path":115},"PCIe 6-Pin Graphics Power Connector","\u002Fconnector\u002Fpcie-6pin",{"domain":24,"slug":33,"name":117,"path":118},"PCIe 8-Pin Graphics Power Connector","\u002Fconnector\u002Fpcie-8pin",{"domain":24,"slug":35,"name":120,"path":121},"12V-2x6 (12VHPWR) 16-Pin Graphics Power Connector","\u002Fconnector\u002F12v-2x6",{"domain":24,"slug":37,"name":123,"path":124},"SATA 15-Pin Power Connector","\u002Fconnector\u002Fsata-power-15pin",{"domain":24,"slug":39,"name":126,"path":127},"Molex 4-Pin Peripheral Power Connector","\u002Fconnector\u002Fmolex-4pin",{"domain":24,"slug":41,"name":129,"path":130},"Floppy 4-Pin Drive Power Connector","\u002Fconnector\u002Ffloppy-power-4pin",{"domain":24,"slug":43,"name":132,"path":133},"ATX12VO 10-Pin Main Power Connector","\u002Fconnector\u002Fatx12vo-10pin",{"domain":24,"slug":45,"name":135,"path":136},"ATX AUX 6-Pin Auxiliary Power Connector","\u002Fconnector\u002Fatx-aux-6pin",{"domain":24,"slug":47,"name":138,"path":139},"AT Power Supply P8\u002FP9 Motherboard Connectors","\u002Fconnector\u002Fat-power-p8-p9",{"domain":24,"slug":49,"name":141,"path":142},"IEC 60320 C13 \u002F C14 Power Coupler","\u002Fconnector\u002Fiec-c13-c14",1793836439346]