CPU or Motherboard problem?

Rathbone

Reputable
Aug 2, 2016
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4,510
Hi Tom,

Decided to upgrade to a new CPU (AMD Ryzen 5). All other parts carried over from working machine with the exception of mobo, CPU and ram.

New build worked fine for a few days then:

  • Booted to bios, didn't recognise any drives present (there are 3).
    Rebooted, recognised drives but wouldn't boot (drive error).
    Used system disc but it couldn't fix problem.
    Rebooted a couple more times and then it would work fine.

After this point it would never boot first time, would always say disc error a few times and then would be fine.

Boot drive is a pretty new SSD. Rebuilt machine with old mobo, CPU and ram; worked fine, first time, every time.

So, given that the new mobo didn't recognise the drives that one time I thought it was the fault. Sent it back to the shop where they tested it and said it worked fine (Asrock a350 fatal1ty).

I bought a second motherboard (gigabite auros). Built it up; wouldn't even boot to bios. No signal from machine to monitor. I checked all the connections. It powered up, CPU fan came on, GPU fans came on but no display or error beeps. Even took out ram and GPU but no error beeps (!?).

Of course I could have just built it wrong but this is two different motherboards which weren't working. Could this actually be a CPU error?

I rebuilt the original machine which, again, booted first time with no issues (starting to wonder if the upgrade is worth it). So I'm pretty sure PSU, GPU and drives are working fine which means something in the CPU, GPU ram chain isn't. Ram is Corsair vengeance 2666mhz which is covered by both motherboards.

All parts were bought new so when I find the faulty part I can send it back for an exchange but at the moment I'm on the verge of sending all of them back.

Sorry for the long description. Help appreciated.

Thanks.
 
your problem is not the motherboard or CPU, you need to do a fresh install of Windows 10 in order for the system to work properly. you can swap the HDD/SSD from the old system and just boot it up, unfortunately. You need to create a win 10 usb media tool, and install win10 in the drive of your choice. do this before you take everything back. if you haven't done this already it's most likely your problem.
 

Rathbone

Reputable
Aug 2, 2016
19
0
4,510
Thanks for your reply but this isn't the case. The machine should boot to bios without drives attached. With the second motherboard it doesn't even do that.
When I first installed the new parts I did a fresh install of Windows and everything ran fine for a few days.
Currently I don't get any signal out of the machine. Pretty sure this isn't a software issue.

Thanks