Overheated comp now doesnt turn on...

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Dannyboyayyo

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Nov 1, 2005
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Hi everyone

i was just playing a game on my computer and all the sudden everything shuts down. then it started to smell like something was burning....i cleaned up some dust and looked for the source of the smell but it went away. then i plugged everything back in and turned the switch on the PSU on and pressed power but i just see the lights turn on for a second and it turns off. then if i press power again nothing happens and the only way for me to see the lights is when on the PSU when i turn it off and back on(hard power off). Is there anything that can be done to fix it or find the source of the problem?

PSU-SeaSonic S12-600 ATX12V 600W
Mobo-ASUS A8N-SLI Premium Socket 939 NVIDIA nForce4 SLI ATX AMD Motherboard
cpu- AMD Athlon 64 X2 3800+ Manchester 2000MHz HT Socket 939
HD-Western Digital Caviar SE16 WD2500KS 250GB 7200 RPM SATA 3.0Gb/s Hard Drive
GPU- eVGA 256-P2-N529-AX Geforce 7800GTX 256MB GDDR3 PCI Express x16
 
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Atheus

Diamond Member
Jun 7, 2005
7,313
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Woah there tiger! Don't press that power button again. In fact, unplug it from the wall and leave it unplugged before you set fire to something or electrocute yourself.

You have most likely blown out a capacitor on the motherboard or PSU, but there is a possibiliy it's the processor too. Take everything out of the case and visually inspect the board for bulging/blown caps, burn marks, and other signs of damage. Inspect the processor too. If you find something, do not assume it is your only problem, it is possible the PSU went first and then fried the board and it's components.

You do _not_ want to open up the PSU and check it unless you _really_ know what you're doing. Try another PSU, borrow one if you have to.

 
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Dannyboyayyo

Member
Nov 1, 2005
176
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hmm i dont have any other PSU that i can try and im looking at the mobo for something unusual but i dont really see anything. mabye i can try my psu from my old dell but i'm not sure it'll power this comp.

little sidenote- the way it just shutoff proves that it was a overheat not something else right? and is it possible if it overheated that the reason it did was because it was under the table?
 
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jackschmittusa

Diamond Member
Apr 16, 2003
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While overheating the cpu, northbridge, or vid card will give you a shutdown, it doesn't usually generate a burning smell. The burning smell is usually a failed component.
 
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Dannyboyayyo

Member
Nov 1, 2005
176
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my other PSU doesnt work for this system :( so i'm stuck any other way to find the broken component? would it even be the PSU since it does power on for even a second. it seems like its something else...but i dont know much :(
 
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Atheus

Diamond Member
Jun 7, 2005
7,313
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I would remove the PSU from the case and plug it into the wall with no components attached. I would then short the green wire with a black wire on the 20 or 24-pin ATX connector to power the device up. I would use a multimeter to measure the voltages on each line and ensure they are in spec. In the absence of a multimeter I might hook up a fan to the supply and check it runs off both the 5v and 12v lines.

 
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Dannyboyayyo

Member
Nov 1, 2005
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i think imma just test my psu by putting it into my old comp and seeing if it runs if not then i assume its my mobo thats toast...
 
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Atheus

Diamond Member
Jun 7, 2005
7,313
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Originally posted by: Dannyboyayyo
i think imma just test my psu by putting it into my old comp and seeing if it runs if not then i assume its my mobo thats toast...
Click to expand...

No dude! If it's broken it could kill the other mobo.
 
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Dannyboyayyo

Member
Nov 1, 2005
176
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lol a little lucky but still something broke so meh. would i have to buy another mobo or can i RMA it back to newegg/asus? since i didnt overclock anything and it just fried when instead it shouldh've turned off before it heated up that much.
 
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DetroitSportsFan

Senior member
Oct 19, 2004
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Originally posted by: Dannyboyayyo
lol a little lucky but still something broke so meh. would i have to buy another mobo or can i RMA it back to newegg/asus? since i didnt overclock anything and it just fried when instead it shouldh've turned off before it heated up that much.
Click to expand...

You're lucky in the sense that it could have been worse. However, remember what Athens said in his first post to your thread? For refreshers, here it is ...

You have most likely blown out a capacitor on the motherboard or PSU, but there is a possibiliy it's the processor too. Take everything out of the case and visually inspect the board for bulging/blown caps, burn marks, and other signs of damage. Inspect the processor too. If you find something, do not assume it is your only problem, it is possible the PSU went first and then fried the board and it's components.
Click to expand...

Don't mistake that for a diagnosis. Its more like a list of possibilities. He's trying to tell you that when a component goes, it frequently kills other components. You can start with the motherboard, but you may also end up RMAing your processor too ... Or if your vid card went out ... there's no telling what it took. If there is any way possible to test your other hardware, it would be good to do so. This simply saves the hastle and aggrevation involved when you guessed wrong and RMA'd the wrong component.

 
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DetroitSportsFan

Senior member
Oct 19, 2004
374
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Newegg right? Newegg will RMA it for the first 30 days. If the board is over 30 days old, you must go through the manufacturer. If you follow the RMA steps, you shouldn't have much problem as long as you're still within your warranty period. One nice thing about Newegg is they keep your online receipts so its easy access if you need proof of purchase to make an RMA claim.
 
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Dannyboyayyo

Member
Nov 1, 2005
176
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o i've had this mobo since oct 05 but i'll try ASUS website hopefully it'll all work out. and hopefully only the mobo went down
 
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phios

Member
Mar 14, 2004
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When you checked your mobo, did you look on the back side of it? Sometimes that will have telltail signs of darkened solder joints. Also, if your mobo did do (like the above posters mentioned) it very well may have sent other components lethaly high voltage, thus rendering them useless.
 
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Dannyboyayyo

Member
Nov 1, 2005
176
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well i cant really check on other items since i dont have another mobo. ill look at the back side tommorow morning...if i get a new mobo and put in all my parts and lets say some are defective can it damage the new mobo?
 
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DetroitSportsFan

Senior member
Oct 19, 2004
374
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0
Originally posted by: Dannyboyayyo
well i cant really check on other items since i dont have another mobo. ill look at the back side tommorow morning...if i get a new mobo and put in all my parts and lets say some are defective can it damage the new mobo?
Click to expand...


YES. Bad parts can kill good parts. Thats why it would be good to test things out.
 
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Dannyboyayyo

Member
Nov 1, 2005
176
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is it possible that all i have to do is take out the mobo battery...i think its called clearing the cmos...and everything will work? i looked and smelt all my parts and they all seem fine. as it stands now i'm RMA the mobo and going to have to wait.
 
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Dannyboyayyo

Member
Nov 1, 2005
176
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well my RMA just came in today and i set everything back up but to my surprise it didnt work.... so i decided it cant be the psu nor the motherboard. i took out the cpu ram hd and video card. tried turing it on and it worked perfectly. so after a few minutes i narrowed it down to the videocard :( i'm going to call evga tommorow and hopefully everything will go by smoothly.
 
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