need some input on a problem

[jd103]

I was making some upgrades to my computer and when I finished this is what happened. After turning it on I went into the bios screen to monitor cpu temp and while watching it for about 10 seconds (CPU up to 28C) the screen just frooze. I thought i smelled something funny so i just turned it off. I then checked everything and powered it on again but this time the nothing would post on my monitor, videocard fan and cpu fan were running.
My MB is a ALBATRON KX18D NForce Ultra 400 and CPU is +2600 Athlon XP Mobile and these were the changes I made:
1. Removed heatsink and reapplied Artic Silver grease
2. changed Sparkle 300 PS to a Rosewill 550
3. changed Crucial 512mb PC2700 to a PQI 512mb PC3200 stick
4. changed Maxtor 40 GB to a Maxtor 160 GB Harddrive
5. changed CD burner out with new Lite-on DVD burner

Now after this happened I took everything back apart, I didnt see any burn marks on the MB or CPU, also the CPU had good contact with the HS/Fan from the impression on it. I even retried with all the old parts but nothing. This MB is also suppose to have a termal protection for the CPU to shutdown if it gets to hot. So my question is do you think my MB, CPU or both went bad?

 

[V00D00]

I would guess the power supply. I have a dead one that did the same thing. Just some generic one that came in my friend's case. It went in the first week after I built his computer. Try putting the other power supply back in.. then at least you can see if that's the problem.

 

[jd103]

I already tried it with the orginal Sparkle PS I had in it before but nothing but fans and lights would come on.

 

[daniel49]

suppose by now you have swapped old memory back in?

 

[jd103]

Yes I have tried it with all the parts I originally had in it but nothing. I don't mind buying a new MB but i would hate to get another socket A and find out the CPU was bad to.

 

[jd103]

Ok guys guys give me your opinion on above, should I:

1. buy a new socket A MB
2. buy a new XP mobile cpu
3. scrap it all and get a new MB and an A64 cpu

Thanks for your help

 

[V00D00]

If it was the memory it would just beep before it POSTs... and if you ruled out the PSU then it has to be the motherboard or cpu.

If you smelled burning I would GUESS it's the motherboard. If you can find a website with a good return policy where you can return it no questions within a week or so, you could try a new motherboard risk free.

 

[NinjaGnome]

Does your hard drive sound like its booting up and running? I had a problem with my friends computer and it was his graphics card. That could be another thing, if you smelled taiwan then something is dead thats for sure.