Computer Fans start, no video, power and reset button won't work

rendashalystar

Honorable
Feb 1, 2014
4
0
10,510
My new build died after working flawlessly for about 2 months. I suspected the motherboard or memory as the power button would start the fans for 1/10th of a second and then wouldn't try to start again until it was power cycled. I replaced the motherboard with the same model and bought and replaced the ram with a different model with the same specs.

Now when turning on the computer, the fans all turn on in the case, cpu, and gpu and power goes to the peripherals like my headset, lighting it up. There is no video output though, both of the monitors just go to sleep and say no input as well as the power button cannot be pressed or held for any amount of time to turn the system off. The reset button seems to do nothing as well.

I have tried reseating the graphics card and ram as well as trying the ram one stick at a time and I am now completely at a loss, I also checked the power connectors on the video card and checked all the motherboard jumpers.

Here are the system specs:
GPU: EVGA SuperClocked 02G-P4-2765-KR GeForce GTX 760 2GB
Motherboard: MSI 970A-G43 AM3+
Memory: 2x4 Gb Gskill Ripjaws 1600 DDR3
CPU: AMD FX-8320 Vishera 3.5GHz
Case: APEVIA X-DREAMER4 Series X-DREAMER4-GN Black
PSU: CORSAIR CXM series CX750M 750W ATX12V v2.3
HDD 1: Seagate 600 Series ST240HM000 2.5" 240GB SATA III MLC Internal Solid State Drive
HDD 2: Western Digital WD10EZEX 1TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive, Blue
 

rendashalystar

Honorable
Feb 1, 2014
4
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10,510
I just swapped for a brand new power supply of the same model and there is no difference at all, all of the same symptoms.

Is it possible that this could be a bad CPU, is there any chance that it would exhibit these symptoms?
 

rendashalystar

Honorable
Feb 1, 2014
4
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10,510
My thoughts right now are that the PSU RAM and Desktop are good as they have all been swapped.

If the graphics card was bad, It would boot with no video and then I would be able to hold the power button to power it off again, so the GPU is likely good.

Is it possible that the CPU being bad could force this? I tried unplugging the 8 plug CPU power cable and it turned itself off again after a little bit and had trouble starting.

Does anyone have any other thoughts?
 

rendashalystar

Honorable
Feb 1, 2014
4
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10,510
I ended up replacing the motherboard, RAM, and the CPU in order to fix the issue. I do not know definitively that the RAM was bad but I believe there was a short that damaged many of those components. All of them were returnable but god was it ever a hassle.
 

morra707

Commendable
Feb 17, 2016
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1,510