Help needed!

''Mark''

''Mark''

''Mark''

Associate
Joined
28 Jun 2009
Posts
7
Hi all,

Please help. A couple of years ago i built my first pc, everything perfect. However, now when i have come to upgrade there are a few problems. I've bought a new cpu, mobo and ram.

I built everything up, and it just wont boot, it doesn't even reach the bios. All the fans spin, but nothing. It doesn't make any beep noise on startup. Then it will turn itself off?

Spec:

New parts:
Gigabyte GA-M52L-S3P nForce 520LE Socket AM2+ 8 Channel Audio ATX Motherboard

OCZ 4GB (2x2GB) DDR2 800Mhz/PC2-6400 GOLD XTC Memory Kit CL5(5-5-5-18)

AMD Phenom X4 9650 2.3GHz Socket AM2+ 2MB L3 Cache Retail Boxed Processor


Old parts:
450W Antec PSU

nVidia 7800 GTX PCI-E card



I have tested that ram in another computer and that works fine. The graphics card worked with the old setup, so i can't see that being the problem. Which leaves me with the mobo or the cpu. Is there any way to tell what is causing the problem without actually trying a different cpu or mobo as i don't have any compatible. Or what it is most likely to be.

My thoughts are I have a faulty mobo, not sure though.

Please help.

Thanks
 
Have you tried setting it up outside of the case to ensure there are no electrical shorts anywhere?

Also, make sure you try booting with only 1 stick of the RAM.

Oh and btw, welcome to the forums :)
 
Yeh i have tried it outside the case, or as far from it as possible, where i had the mobo on folders so there was no other metal contact.

I have tried booting with only one stick in all ram slots, and i have tried other ram too, still nothing.

Many thanks for the welcome.
 
Can you borrow another PSU from someone, it's possible it's not up to the job anymore.
However this could also be CPU, motherboard, RAM or GPU that's causing the problem.
 
Thanks for your help.

The ram works fine and the GPU works with the old setup i had.
Could still be the CPU or motherboard.
Could it still be PSU even if it doesn't get to the bios?
 
Haha, if you mean to cpu fan cable, that's in.

It makes me wonder if i have missed something silly.

I even got a friend to try all the stuff and it was just the same, it will turn on, not make any beep, no display, all fans spinning, then just turn off.
 
take the memory out and try to to boot, then take the cpu out and try to boot, if you fail to get any post beeps or error beeps then I would hazard a guess at PSU or mobo.
 
Mare sure you have both 24pin atx and 4/8pin atx power supplies connected to the mobo and they are secure.

I suspect the PSU myself..

Follow my guide here to eliminate it completely. If the tests conclude the PSU is ok, then you are narrowing down the culprit.. to the CPU/Mobo/Memory.

Check your memory using memtest86+

Post back..
 
Many thanks to everyone who helped.

The culprit was the PSU, being too weak i guess.

Got a new 600W PSU and everything is good.

Once again thank you all!
 
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