Computer won't boot to bios or display anything

studiomax

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Oct 19, 2014
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4,510
Hey all,

My friend and I are stumped. Recently did a windows update when shutting down. No dramas there.
Turned the computer back on a few days later and it did its update when booting up as per usual. It restarted by itself and sounded an unfamiliar pattern on beeps and then.. Nothing, nothing on the screen.
Powered it off by holding the power button for 4 secs. Powered it back on and booted in safe mode and did a did a system restore to a date before the aforementioned windows update. It did its thing and when it restarted, the bios screen displayed big white boxes in place of where the asus logo and graphic was. Definitely something wrong there. It got stuck on this screen and I can't do diddly duck. Can't even ctrl alt dlt.

I then bought a new 650W cooler master psu to replace the existing Chinese branded 430W PSU. Additionally I got a Samsung SSD. Hooked both new parts up. Powered the computer on and nothing on the screen and no start up beeps.
Already tried everything from using the old PSU, to bread boarding, to using only stick of RAM and even hooking it up with the original setup. It all leads to a black screen at powering on and no start up beeps.

What is the problem?
 

studiomax

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Oct 19, 2014
3
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4,510


Hi Abishek, thanks for the quick reply! It's never been overclocked, didn't have a BSOD recently and as for the abnormal restart, I would say when it sounded the beeps when it restarted by itself after the update.

Had the opportunity to test the GPU, no problem there. So it is probably the mobo or the CPU like you suggest. I'm hoping not the latter.

Can an installation of a new PSU cause damage to the mobo? Is this what happened to the computer?
 

Abhishek_0602

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Oct 18, 2014
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4,540
PSU won't be damaging the system as its is of high power. its would rather enhance your system.
Get your mobo and cpu checked, because beeps usually indicates that there's problem in either mobo or cpu.
Hopefully getting both the components checked will definitely solve your problem :)
 

studiomax

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Oct 19, 2014
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4,510


Thanks again for a quick reply Abhishek! No beeps when I start it up now, which I forgot to mention, just nothing - no signal to the monitor (GPU is okay though since I've checked this) and no start up beeps. I am wondering what happened to the mobo and/or CPU when I simply replaced the old PSU with a new one. The mobo simply dying sometime in the swap just seems too coincidental.
 

Abhishek_0602

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Oct 18, 2014
22
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4,540
Well this is possible that change in psu might have caused the damage but it seems unlikely. Maybe the change in voltage is the problem. Get your mobo and cpu checked. No signal means that your system hasnt booted yet.