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Motherboard Power-cycles Multiple Times on Boot

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Posted · Original PosterOP

I've had a problem with my PC for about 2 years now, it's a faulty DisplayPort cable. I don't remember where I read this, but there's a 20th pin on it that gives power back to my GPU. I can confirm this, because turning off the power on my PC still leaves the GPU light and fans on. Furthermore, I must always disconnect my power supply from power (by flipping the switch) before booting my PC, otherwise it will not read from disk (disk light stays off), and then reboot itself infinitely.


Recently, however, this has happened even when I turn off the power. I'm assuming my motherboard is acting up? Does anyone know what I could do? All of my specs are in my signature below.


I should definitely get rid of that displayport cable too.

||| Drakon (Desktop Build) |||

|| CPU: i5-6600 3.3GHz || Cooler: CM Hyper 212 Evo || Motherboard: Gigabyte B150M-D3H DDR3 || Memory: Corsair Vengeance Pro 16GB 2400MHz DDR3 ||

|| Storage: 850 EVO 250GB SSD; Toshiba 1TB 7200RPM + Samsung 2TB 5400RPM HDDs || Graphics Card: MSI AMD R9 390 || Case: NZXT S340 || PSU: XFX XTR 750W 80+Gold || 


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