First custom build turns off immediately. 2 bad MOBOS in a row?
TLDR: Processor, memory, PSU seem fine. MOBO lights up for a split second when PSU is plugged in. Only the CPU light and CPU fan turn on for a split second when I try to turn the system power on.
I’ve been trying to get my custom build to POST for about two weeks and have been running into a series of problems and I would appreciate any help.
MOBO: Gigabyte Z370 Aorus Gaming 5
Processor: Intel i7 6700
Memory: 2 x Corsair Vengengance DDR4 LPX 8GB 2400
Graphics: EVGA GeForce GTX 2018
PSU: EVGA SuperNova 850
Storage: Samsung 970 Evo
Heatsink: CoolMaster Hyper 212
When I power the system on, the CPU light flashes on and the CPU fan starts for 0.5 seconds and then the board shuts down. I’ve double checked the motherboard power and CPU power cables. I’ve tried powering it up with just 1 RAM stick installed. I’ve also removed the graphics card. I’ve checked the CPU pins on the socket and they seem fine (although this is my first build). I also tried power it on outside of the case on a cardboard box and got the same results.
When I first connect the PSU to the system all the RGB lights on the motherboard light up for a split second and then turn off. This is different than the CPU check light turning on when I power the system on.
I started out with an old Asus z270e gaming motherboard that my friend couldn’t get to work. I was able to get the CPU and RAM checks to pass and the PSU was supplying steadily on that motherboard but was unable to get it to POST. After being unable to return that motherboard, I upgraded to the Gigabyte Z370 Aorus Gaming 5.
Could this just be another bad motherboard? Is this a CPU problem?
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