Power failure issue. Is there any hope..?

October 14, 2010 at 10:37:43
Specs: Windows Service Pack 2, AMD Quadcore 4gigs DDR2
Long story short, I had an error message when trying to boot into windows saying my system32\drivers\nvgts.sys was corrupt or missing. So, after I gave up on repairing the file I decided to just reinstall windows (xp service pack 2.) Started it up and went to watch some tv for a while. Well when I came back in the room the computer was off and I smelt something burning.. and sure enough when attempting to power on the fans did one rotation and it died. so I figured the power suppy went out on me, because this had happened before 2 years back while trying to install windows also. so this morning I go out and buy a new power supply, hook it up and the same thing happens, one fan rotation. so i gave it a minute tried one more time and it started! the fans were going a bit slow but eh, then all of the sudden smoke comes bellowing from I think the motherboard but it was so close to the power supply its hard to say. so I turned it off, the power supply didn't smell like it was burnt but the case still did. i couldnt find any burn marks on the motherboard, but now I'm at a loss and afraid to attempt any more tries. Do you think its likely this time it wasnt only my power supply, why did this happen, and is there any hope of salvaging? thank you in advance for any replies.

old power supply: antec 500w
new: thermaltake 600w
MB: A15G v1.0
CPU: AMD Phenom quad core
graphics: Radeon HD 4670


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#1
October 14, 2010 at 11:51:56
If the power supply isn't still fried, you may pull all the cards from the mainboard and also disconnect power cables from all the drives. Then turn on the computer and check, whether the fans rotates for a while.
Then, you have to connect the power cable, one by on to the drives and check after each connection, whether processor fan is rotating.
When all drives are connected and it's working so far, you have to put in the first add on card, e.g. graphics card or whatever and check, whether it functions.

The original poster should always write the last response !!!
Let us know, if the problem is solved !!!


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#2
October 15, 2010 at 15:24:20
Well, I tried to put that to the test and sadly I couldn't even get the fans to rotate with everything unplugged. So, I went and borrowed a friend's remains of his old computer and threw the power supply in there to see if I could get anything going and sure enough it ran fine. Does that automatically mean my motherboard is good as gone? or could it just have fried the processor? or could the ram possibly be the culprit? not quite sure if i can swap out the processors on these two motherboards but the ram is definitely possible if that could actually be the problem. I've tried both my sticks in each slot interchangeably with no luck thou.. Soo

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#3
October 15, 2010 at 17:00:57
It is very unlikely the ram would be your problem, and if it was the ram that let the smoke out it would have fried the slots at the same time so the motherboard is toast in any event. You need to decide whether to invest $$$ in another compatible motherboard on the chance that the CPU and graphics card and RAM are still OK. You won't know until they are tested in a known good board. You should also check your other peripherals. ie: harddrives & optic drives as a short circuit in one of those may have been the root cause of all your woes.
Since you have access to the other system you tested the powersupply in I suggest you also test your drives in that way. Before testing your ram in that other system you need to be certain it is compatible. Not all ram runs at same voltage and you can damage it if you put it in a slot with different voltage requirements.

You may get lucky and find that replacing the MOBO solves everything. Worst case you buy a motherboard only to find everything else was fried when the board failed. Weigh up the potential cost in $$ and time.

Goin' Fishin' (Some day)


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#4
October 15, 2010 at 17:42:12
As I stated in #1, you have to check all the components by connecting them one by one and checking, whether it works.

BTW: If the power supply went in to it's short-circuit-protection, you have to power off the computer and wait for about 2 minutes, to be able to try other components.
One can hear a low noise ticking, when the power supply went into it's short-circuit-protection.

The original poster should always write the last response !!!
Let us know, if the problem is solved !!!


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#5
October 16, 2010 at 01:24:46
It sounds like your old power supply failed and when it failed it also damaged something on the motherboard. Look very carefully with good light at all the chips and components on the board. On the black flat chips look for shiny looking areas and slight cracks which indicate a blown chip. The RAM and CPU are probably still fine but as said above you will need to test with a new board and keep in mind, if they are damaged they could potentially damage the new board as could any damaged component...

Good luck and let us know how it goes...


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