I recently put together a new pc, and it initially booted fine. I installed Windows 7, all of my drivers, and Battlefield 4 (powered it down once or twice in there, too). I played BF4 for about 2 hours, then the game froze. I didn't think anything of it and decided to sign up for BF Premium, so I went online for a bit and got to where I needed to enter my credit card info and went into the other room to get my wallet. When I returned maybe 20 sec. later, the PC was off and would not power on. (I should clarify: when power is cycled to the PSU, the initial attempt to power on the PC results in the LEDs on the case fans flashing once, briefly, and then nothing. Subsequent presses of the case or mobo power button do not even achieve this. Also, the mobo LED stays on when the PSU is plugged in and turned on.) I tried swapping out my 850W PSU for my old 650W PSU with no change. I put the 850W back in, took everything but the CPU/mobo out, and breadboarded it from there with successful boots until I put the video card back in. No power with the vid card installed. I tried a different cable for the GPU power with no difference. I tried booting without connecting the two 8-pin power cables attached but left the GPU in the PCI-e slot, and it powered up. The LEDs on the vid card lit up, but the mobo didn't recognize a GPU being present. I am at a loss as far as what my next course of action should be.
PC specs:
MoBo - ASUS Z87 PLUS
CPU - Intel i7 4770k
GPU - EVGA GTX 770 Classified 4GB
PSU - Thermaltake SP-850M
RAM - G.Skill RipjawsX CL7 8GB
SSD - Samsung 840 Pro 256GB (boot drive)
HDD - WD 1TB
ODD - ASUS DVD drive
PC specs:
MoBo - ASUS Z87 PLUS
CPU - Intel i7 4770k
GPU - EVGA GTX 770 Classified 4GB
PSU - Thermaltake SP-850M
RAM - G.Skill RipjawsX CL7 8GB
SSD - Samsung 840 Pro 256GB (boot drive)
HDD - WD 1TB
ODD - ASUS DVD drive
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