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So I have an Gigabyte X79-UD3 and my motherboard (8 pin) power cable got broken (don't ask how).  So my PC randomly shuts down till I just barely touch the cable a bit or adjust it in a position so it works for like an hour 

In the manual it says it's an ATX_12V_2X4, so I was looking for an temporary solution till I buy another power supply and I found an Power Adapter Converter Cable 2x 4pin Molex To 8pin CPU Power On MB on EBAY so will it work or do I need an different adapter? 

 

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Depends on if your computer is modular or not. Probably not the best idea to "experiment" with your power though, permanent damage to your components is not out of the question if you start sending voltages where they shouldn't go. But, if it's modular you could MAYBE mangle some spare cables to do it but it is probably more wise to just let it lie until the power supply comes in.

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The cable will be part of the power supply when you bought it, if it's modular you can just get a new cable.

 

Otherwise PCIe 8pin to CPU 8pin will be the one to go for, it has 75% the current capability of a CPU 8pin so don't push it. Honestly maybe consider a new PSU instead, I don't know what you're running but power supplies aren't that expensive.

 

12 minutes ago, Spreco said:

Power Adapter Converter Cable 2x 4pin Molex To 8pin CPU Power 

2 Molex only has half the current capability, on top of many PSUs using even thinner wires than they would on CPU and PCIe plugs so it's not even 50%. This is hazardous.

 

Not to mention that a lot of adapters out there are designed to cut cost, so it's not even as good as it seemed on paper.

CPU: i7-2600K 4751MHz 1.44V (software) --> 1.47V at the back of the socket Motherboard: Asrock Z77 Extreme4 (BCLK: 103.3MHz) CPU Cooler: Noctua NH-D15 RAM: Adata XPG 2x8GB DDR3 (XMP: 2133MHz 10-11-11-30 CR2, custom: 2203MHz 10-11-10-26 CR1 tRFC:230 tREFI:14000) GPU: Asus GTX 1070 Dual (Super Jetstream vbios, +70(2025-2088MHz)/+400(8.8Gbps)) SSD: Samsung 840 Pro 256GB (main boot drive), Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Case: Antec P110 Silent, 5 intakes 1 exhaust Monitor: AOC G2460PF 1080p 144Hz (150Hz max w/ DP, 121Hz max w/ HDMI) TN panel Keyboard: Logitech G610 Orion (Cherry MX Blue) with SteelSeries Apex M260 keycaps Mouse: BenQ Zowie FK1

 

Model: HP Omen 17 17-an110ca CPU: i7-8750H (0.125V core & cache, 50mV SA undervolt) GPU: GTX 1060 6GB Mobile (+80/+450, 1650MHz~1750MHz 0.78V~0.85V) RAM: 8+8GB DDR4-2400 18-17-17-39 2T Storage: HP EX920 1TB PCIe x4 M.2 SSD + Crucial MX500 1TB 2.5" SATA SSD, 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally, 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172) left outside Monitor: 1080p 126Hz IPS G-sync

 

Desktop benching:

Cinebench R15 Single thread:168 Multi-thread: 833 

SuperPi (v1.5 from Techpowerup, PI value output) 16K: 0.100s 1M: 8.255s 32M: 7m 45.93s

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10 minutes ago, TheMamaSeahorse said:

Depends on if your computer is modular or not. Probably not the best idea to "experiment" with your power though, permanent damage to your components is not out of the question if you start sending voltages where they shouldn't go. But, if it's modular you could MAYBE mangle some spare cables to do it but it is probably more wise to just let it lie until the power supply comes in.

I meant if your power supply was modular not the computer itself. 

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Well it's a Thermaltake Smart RGB 600W so it's not modular, like a few months my PC started shutting down and won't start just like a boot loop it seemed like it started losing energy and it couldn't start so I was holding the cable and it started booting when I released it shutdowns and it happens often  so I need a temporary fix I'll consider buying a new PSU 

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