[SOLVED] Can I be sure my motherboard is broken? (and not my CPU)

[Noki0100]

Hi,

I've been putting together an old machine in my spare time with some old parts. I have a strange issue when sometimes it will turn on just fine. Other times nothing at all, no power whatsoever.

Flicking the PSU off and on sometimes fixes it, but it's 1 in 20 if it will turn on. Once one it seems to work just fine, I can install OS and reboot multiple times no problem. Then it won't work again.

Now I assume I have a hardware fault, and it seems to be the motherboard.

Every redundant component has been removed with no impact, and everything required component has been tested with an alternate, such as the PSU, I have tried 2.

Now, I don't have alternate CPU's or Motherboard's to test. I assume a CPU issue would not cause the type of problem I am seeing.

Can I be sure it is the motherboard? Replacements online seem pretty cheap so I don't mind spending a little get a full working computer.

Is there something I can check on the board itself? I've googled but this doesn't seem all that common.

Thanks,
Noki

Internal Storage	Intel	80GB	X25-M Mainstream
Mainboard	MSI	AM6	A55M-P33
PSU	Enermax	620W	ELT620AWT
Internal Storage	Seagate	320GB	Barrcuda 7200.12 ST3320620AS
CPU	AMD	Quad Core 2.7GHz	A6-3670K
RAM	Corsair	4GB	XMS3 CMX4GX3M1A1600C11

 

[NightHawkRMX]

Sounds like its a mobo. If you can boot run a cpu stress test to make sure its stable. Its your mobo if the cpu is stable.