- Sep 16, 2014
- 2
- 0
- 4,510
Hey all,
Recently one of my home build computers that the family uses shut down unexpectedly. I tried to reboot it several times, with the first couple it attempted to boot Windows, and the last few it couldn't even make it to BIOS. Now the computer simply will not turn on at all. At first the CPU LED would shine red, however it now no longer comes on at all.
I figured the motherboard may be at the root of the issue, and managed to obtain a used one from eBay. Using this motherboard the computer will turn on, briefly, for about 2 seconds, (with absolutely no display at all), and then turn off. It will cycle between on and off repeatedly until the power source is removed.
The components are being bench tested and I am quite sure there are no potential areas where a short may be occurring. I am confused because I am getting two different results with two different motherboards, but with no success on either. Boot LEDs on the mobos are always lit up as green.
I have tested without the GPU/RAM etc. such that only the CPU, motherboard and heatsink are installed, with the exact same results.
Specs:
CPU: i7 860
GPU: Radeon HD 6870
RAM: G Skill Ripjaws 4GB
PSU: Corsair TX 750W
Motherboard 1: P7P55D-E PRO (original motherboard that will no longer boot at all)
Motherboard 2: P7H55-M LX (purchased motherboard that cycles through 2 seconds of on and off)
I do not currently have a speaker installed on the mobos but I can obtain one and see if any beeps occur, though I don't think any will.
Any help or suggestions are appreciated, thank you!
Recently one of my home build computers that the family uses shut down unexpectedly. I tried to reboot it several times, with the first couple it attempted to boot Windows, and the last few it couldn't even make it to BIOS. Now the computer simply will not turn on at all. At first the CPU LED would shine red, however it now no longer comes on at all.
I figured the motherboard may be at the root of the issue, and managed to obtain a used one from eBay. Using this motherboard the computer will turn on, briefly, for about 2 seconds, (with absolutely no display at all), and then turn off. It will cycle between on and off repeatedly until the power source is removed.
The components are being bench tested and I am quite sure there are no potential areas where a short may be occurring. I am confused because I am getting two different results with two different motherboards, but with no success on either. Boot LEDs on the mobos are always lit up as green.
I have tested without the GPU/RAM etc. such that only the CPU, motherboard and heatsink are installed, with the exact same results.
Specs:
CPU: i7 860
GPU: Radeon HD 6870
RAM: G Skill Ripjaws 4GB
PSU: Corsair TX 750W
Motherboard 1: P7P55D-E PRO (original motherboard that will no longer boot at all)
Motherboard 2: P7H55-M LX (purchased motherboard that cycles through 2 seconds of on and off)
I do not currently have a speaker installed on the mobos but I can obtain one and see if any beeps occur, though I don't think any will.
Any help or suggestions are appreciated, thank you!
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