Faulty mobo/VGA: crashes and no boot.

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fredosantana

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Nov 6, 2017
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Hello there!
That's my question. I've been experiencing some bad errors, and i think it might be my mobo. Two months ago my PC started not to work very well. Let me explain it better.
When i pushed the power button i couldn't see anything on the monitor, but i could hear the components running. After 1/2 minutes of complete black screen i could hear my pc rebooting, and boom! windows started up like nothing happened.
This happened for one months or two.
Now i've been experiencing some new errors: when i push down the power button i can only hear my components running at max speed, but after waiting 1/2 minutes nothing happens: no restart, no windows. the only thing i can do is to manually force shut down and restard. that's the only way to make it work.
I'm wondering if the problem is my mobo, because i had the same problem with an older laptop and the problem was, at the end, the mobo: it fried and fried the other components too.
something i noticed too are some bad crashes during gameplay, like pink pixels, some bsod (watchdog.sys) and such. sometimes i get random reboots too. I've already tried to reinstall drivers and such, it didn't work.
I'm really worried right now, because in my opinion my faulty mobo might have damaged my vga too. is it possible? what do i have to do? help!

My specs:
mobo: ga-f2a88xm-hd3
cpu: X4 860K
vga: RX 460 2GB
ram: 8GB
PSU: vs450, Corsair

P.S. Sorry for my bad english :)
 
Solution
DRagor
Those visual problems are one of the reasons I suspect PSU. Yes, faulty mobo can damage other components - but usually it's done as mobo dies (failed VRM delivering wrong voltage to components for example). Since mobo still (somehow) works, I doubt it had already done any damage (but of course that is possible, just not likely). Another way mobo could cause graphical glitches would be through failing PCIe slot - but such problem could not cause issues with booting. That all, added with rather average quality of PSU, points toward PSU failure. So if it was my rig, and no way to test things, I would start with replacing PSU.
One more thing you can do, which cost almost nothing, is swapping battery on motherboard with new one. But I doubt...
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DRagor

DRagor

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Jan 23, 2017
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I would first suspect PSU. VS line is not great, and if it is more then 3 years old (and I guess it is), it could fall out of spec, causing all the problems. Test your setup with known working PSU, and only if that won't help, motherboard is next on the list.
 
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fredosantana

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Nov 6, 2017
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Hey, thanks for the fast reply.
I bought this PSU 11 months ago and the mobo is 3/4 years old. Unfortunately, i have no more PSUs to test my machine with, so i won’t be able to do that.
 
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fredosantana

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Nov 6, 2017
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Omg. I’m not sure what to do. What would you do?

By the way, can my faulty mobo have harmed my gpu in any way? because like i’ve said i sometimes get some vga related errors (visual glitches,pink pixels and game crashes) and i don’t know if this is a faulty gpu+mobo problem or only mobo problem, because I don’t know if some of the visual glitches can be caused by mobo too.
 
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DRagor

DRagor

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Jan 23, 2017
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Those visual problems are one of the reasons I suspect PSU. Yes, faulty mobo can damage other components - but usually it's done as mobo dies (failed VRM delivering wrong voltage to components for example). Since mobo still (somehow) works, I doubt it had already done any damage (but of course that is possible, just not likely). Another way mobo could cause graphical glitches would be through failing PCIe slot - but such problem could not cause issues with booting. That all, added with rather average quality of PSU, points toward PSU failure. So if it was my rig, and no way to test things, I would start with replacing PSU.
One more thing you can do, which cost almost nothing, is swapping battery on motherboard with new one. But I doubt that would help - the issues do not match with those caused by failed battery.
 
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fredosantana

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Nov 6, 2017
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Oh, ok, thanks for your help. I'll try to swap battery when i can.
One more thing came to my mind before: can the new cpu i bought 2 months ago be the cause of my problems? (everything ""started"" when i bought it) I was wondering if it could be it, but i don't think so. Let me know.
 
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DRagor

DRagor

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Of those symptoms you listed, only watchdog BSOD could be tied to CPU. And no boot also, but if it was caused by faulty CPU, the problem would be persistent - you could never start it. Did you update motherboard BIOS when swapping CPU? Looking at board age, I suppose it is Revision 3.0/3.1, so you should have F7 BIOS version installed for that CPU. If you haven't done that, there is possibility this could be the cause of your problems.
 
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fredosantana

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Nov 6, 2017
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I checked my bios version, and i have F7 installed.
One more question: is it safe to game on this machine, as long as the psu/mobo is dying? will i damage other components? if not, i'm planning to buy a new mobo+psu in a couple of weeks so that wouldn't be a problem.
 
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DRagor

DRagor

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Jan 23, 2017
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Well, that one is tough. I'd say it's risky. When PSU finally goes down, it can often take some components with it. You may get some forewarning or not at all. With motherboard it is lesser danger. But since you don't know which one is culprit ... I would limit usage of this machine to what is absolutely necessary, at least until you get new PSU.
 
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