Failure? Where!

Talbs13

Talbs13

Talbs13

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Hey,

I am currently fixing a friends PC but having trouble diagnosing the faulty part.

Basically i am getting no display on the screen, it is powering on etc etc but no display. From my experience i would say that it was the CPU that has gone but i need someone elses personal opinion on this.

Here is what ive checked and replaced but still nada.

Graphics Card
Power Supply
RAM

Only thing left i guess is the motherboard and CPU.

I dont want to splash out £40 on a CPU if its the Motherboard or vise versa.

Spec:

AMD 64 3700+
Asus Motherboard
1GB Generic
Nvidia 6200GT
500W Generic

Note : He keeps it on from 7am to 12PM midnight so i automatically assumed it was the PSU but nope so now im looking at CPU.

Thanks for any help in advance.

Cheers!
James T
 
Anyone else?

Its 2 years old and has been on for long periods constantly for 2 years.
 
Last edited:
Ok firstly have you tried to reset the motherboard?

Just take the cmos battery out, wait a bit wack it in, if that doesn;t work just double check the connections.
 
My AGP system, which is nearly 4 years old was on 24/7 all year round and the PSU was fine, so was everything else.
 
shr3k,

That is the first thing i did, infact, thats the first thing anyone would do.

fobose,

Yeah....thanks for that.

Anyone else?

;)
 
If you leave the RAM out of the system, does it give you post eror beeps? If so, then the board may very well be faulty...Have you tried it with one stick of ram in every slot as well, could just have a faulty channel on the motherboard.

IF you DONT get post error beeps without the ram (assuming you have a speaker on the motherboard connected), then the cpu could be faulty...or the ram. If this happens, re-seat the cpu, and see if that helps.

**Edit**

Infact....is the system even booting up at all?
 
From my experience the motherboard is normally at fault.

When you've done all the normal checks and come down to either CPU or motherboard you need to replace one or the other to test.

For 15 motherboards I've seen broke Ive seen one bad CPU.
In fact the one with bad CPU had a bust motherboard as well.
Phone up any shop and they prolly tell you the same.

Dunno where you get your experience from.
 
Meant to say "If you dont get post error beeps without the ram plugged in, then its either the cpu or board at fault."

As split says, it's probably easier to get yourself a motherboard, and try it then...Assuming the RAM is working obviously :)
 
Not using a DVI adapter is it?
A system I built last week had no signal to the display, changed the adapter and it worked fine.
 
I will add this rather than edit my other post.
This is our opinion, and can't be guaranteed.

9 times out of 10 the motherboard is the problem, and not the CPU.
I repaired (or attempted to) a few months back one that was dead.
The guy had already fitted a new PSU, so I went for the motherboard.

That didn't fix it, so i tried another CPU and it turned on.
I then thought I'd install windows on it, and stuck in the windows CD.
Both CD and DVD drives totally dead.

This PC must have had some sort of spike that took out some bits and not others.

Dead was CPU / Motherboard / CD and CVD drive and the rest is OK. (not sure on PSU as I never got to see original)
You would have thought it would have taken out the memory, but it didn't.
 
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