Can't get computer to post? New mobo still no good?

Stormster

Stormster

Stormster

Soldato
Joined
18 Oct 2002
Posts
4,671
Location
Stoke-on-Trent
Hi all. My dad brought his PC around, said he had a big power surge or cut, and since then his PC wont work... I've got it here and it will power on but not post. Anyway a capacitor actually blew up and fell out of the PSU, so I replaced the PSU thinking it might be a power issue... no good. I tested the video card and ram in my own machine and that worked fine. Only thing really left was the motherboard and CPU. I have a P4 3.2GHz Northwood so no other mobo to test my dads on etc.

I removed stuff like video and ram to check for beeping fault codes etc but nothing at all.

I guessed it was the motherboard as no LED's came on properly on the front of the case anymore, the HD one came on for a short while but no power one. The motherboard is a ECS (Elitegroup KT600A) and CPU is an AMD Athlon 2500+ (barton I think) - Socket 462 (socket A).

Anyway I got a cheap ass ASRock K7S41GX as I was convinced it was the motherboard. This one has onboard video too... all the LED's are fine, all the fans spin up, the HD, floppy and CDRW power up fine.

Anyways, put it all together and again no post. Cleared the BIOS on both aswell when testing but no luck. Tried my own RAM and no good, tried the RAM and Video outta my dads in mine again and they worked fine, put them back in my dads - no good.

Inspecting the CPU, it *looks* fine... but what do you guys think? Proper stumped now and he's moaning about spending money so if the CPU is dead it could mean swapping to a different platform really due to how rare they are now grr.

Cheers!
 
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Okay, you might not like this but, I recently had fun with a bunch of these (ASRock K7S41GX) motherboards and what it boiled down to after much (fannying around) was that if you changed the fsb from its default setting to 166mhz, then the thing just kills itself. We had all fans spin up but no boot, it also killed the keyboard stone dead each time. we went through 3 of these boards to find the problem. our supplier confirmed that their stock seemed to suffer the same problem (the ones they tested!) does this sound familiar?
P.S all other components survived the experience

turbotoes
 
I could try knocking the FSB down a bit but... not sure, with the other motherboard being dead and then this one showing a bit more sign of life with the LED's it's just making me wonder if the CPU has somehow cooked itself :(
 
Stormster said:
I could try knocking the FSB down a bit but... not sure, with the other motherboard being dead and then this one showing a bit more sign of life with the LED's it's just making me wonder if the CPU has somehow cooked itself :(
Click to expand...

I'd have thought so if you've tried new MB and still getting no post.
 
Tried lower FSB's, removing batt for BIOS and leaving a bit then powering on without, no expansion cards etc and still no joy :( Must be the CPU i think.
 
Tried new CPU... no good, am assuming that myth about these ASRock mobo's is true! Tried the new CPU (2400+ BTW) in the old KT600A and no joy either...

dunno what to do now as got 2 CPU's and 2 motherboards and no working PC. lol :(
 
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