New PC boots up for a few seconds then turns off...

Toby Anderson · Oct 31, 2014

My friend has recently bought all of the parts for a new gaming PC. We have assembled it today and when he booted it up he began to install Windows 8, during the install, just after he entered the product key, the system shut off. Every time we then go to boot it up again, the fans go on on all of the parts for a few about half a second then it shuts off. Wee think this might be an error with the CPU, but were not sure.
The Specs:

CPU - AMD FX 8320
GPU - AMD r9 280
PSU - Corsair CX750M (750W)
MOBO - Asus M5A97
SSD Boot drive - Kingston 120gb
Ram - Kingston HyperX 8gb 1866
Thanks in advance.

TheDualshock · Oct 31, 2014

Hmm is the CPU fan plugged in properly? I once had a similar problem with my PC shutting off a few seconds after starting to find out that the CPU fan wasn't plugged in properly.

Toby Anderson · Oct 31, 2014

TheDualshock :

Yes, I do believe that it is plugged in properly as it started spinning for about half a second.

TheDualshock · Oct 31, 2014

Does the fan constantly spin?

Africa_PC · Nov 10, 2014

I am having the same problem

Paul NZ · Nov 10, 2014

It needs BIOS 1605 to support that CPU. This is the latest BIOS on the ASUS site

FX-8320(FD8320FRW8KHK,3.5GHz,8C,125W,rev.C0,AM3+) ALL 1605

If its not on it now its not going to work

http://www.asus.com/nz/Motherboards/M5A97/HelpDesk_Download/

If this is what the prob is the only way youre going to get it to work is to take it in a shop and ask them to flash it with a CPU it supports

One of the CPU's listed here that say 0503

http://www.asus.com/nz/Motherboards/M5A97/HelpDesk_CPU/

Then put yours back. Or buy another CPU then do it

Toby Anderson · Nov 10, 2014

Paul NZ :

Guys, we think we may have found the possible error. After some teasing with the system speaker we have diagnosed that it is probably the PSU or Mobo.
If anyone is interested, I followed a post from toms hardware saying about this.
It said to plug in the system speaker and CPU only. No ram and no GPU. It then said if when you turn it on it beeps lots of times then it means it is missing a component (ram) if it doesn't get that far to even beep then it is either the mobo or psu or maybe both. It is very unlikely to be a CPU error.

Paul NZ · Nov 10, 2014

Well it will beep if theres no ram. And it wont post if there's no ram on it

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New PC boots up for a few seconds then turns off...

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