Resolved by swapping motherboard.
Original thread follows:
Hello Everyone -
I'm having trouble diagnosing what seems to be a hardware failure on a Dell T1700. This is a built up generic box designed for low power consumption video editing, specs are:
Dell T1700 Stock Box, MB, PSU
Core i5-4690k
Asus GTX 1050 OC
32 GB Ram
4 SSD's
Windows 7 64 bit Build 7601
Symptoms:
Power button started failing. Worked occasionally, now doesn't work at all, except randomly a week ago it worked once.
I was still able to boot using the PSU's diagnostic button for a while. Recently, this started to fail occasionally as well. I tried pulling the video card, unplugging all SATA ports, removed all peripherals. This sometimes allowed for POST.
Tried pulling the CMOS battery, plugging in AC, booted successfully a few times but today this wasn't foolproof either.
Currently I am booted from onboard graphics without CMOS battery but with all SATA ports and all 4 sticks of ram. Failed to POST 4 times, but made progress each time. Every time the system POSTs, windows loads no problem, hence my assumption of a hardware failure.
What are my best options for diagnosis? Memtest 86? Prime 95?
I'm suspicious of motherboard failure, but am hoping this is not the case as it's the most labor intensive.
Original thread follows:
Hello Everyone -
I'm having trouble diagnosing what seems to be a hardware failure on a Dell T1700. This is a built up generic box designed for low power consumption video editing, specs are:
Dell T1700 Stock Box, MB, PSU
Core i5-4690k
Asus GTX 1050 OC
32 GB Ram
4 SSD's
Windows 7 64 bit Build 7601
Symptoms:
Power button started failing. Worked occasionally, now doesn't work at all, except randomly a week ago it worked once.
I was still able to boot using the PSU's diagnostic button for a while. Recently, this started to fail occasionally as well. I tried pulling the video card, unplugging all SATA ports, removed all peripherals. This sometimes allowed for POST.
Tried pulling the CMOS battery, plugging in AC, booted successfully a few times but today this wasn't foolproof either.
Currently I am booted from onboard graphics without CMOS battery but with all SATA ports and all 4 sticks of ram. Failed to POST 4 times, but made progress each time. Every time the system POSTs, windows loads no problem, hence my assumption of a hardware failure.
What are my best options for diagnosis? Memtest 86? Prime 95?
I'm suspicious of motherboard failure, but am hoping this is not the case as it's the most labor intensive.
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