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PSU failure damaged RAM, CPU, more?

Last response: in Components
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June 29, 2013 3:40:23 PM

Earlier today I was having problems with my computer, the cpu_led light was shining on my M5A97 after being unplugged and plugged in again as soon as i powered on everything span up normally, then about a second later there was a pop and smell from the PSU, I instantly pulled out the power but noticed as i was doing so the cpu and ram leds' were lit.

I took the PSU out my rig, and opened it up, to find one of the black 'chips with legs' to be slightly blackened and also directly underneath on the board.

I want to know if the surge in power could have damaged my components, hence the warning lights were lit up? It seemed to be a minor chip that went, not a transistor or capacitor so i should be okay? Of course I can't know 100% till a replacement arrives but some reassurance would be nice, if anyone has had this before.

Regards, Rain2

EDIT: New PSU went in today, CX750M, system boots fine, about to run prime95 for stability, thanks everyone
a c 213 à CPUs
June 29, 2013 3:50:49 PM

Ya wont know until new unit arrives.

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a b à CPUs
June 29, 2013 3:57:50 PM

Sorry, don't have much encouragement here. There is a possibility that other parts were damaged in your pc. The good sign is that the led lights came on. I have had two PSU failures in the last 14 years, both with major well trusted brand PSU; first one took the RAM and MoBo. Second failure was on the 12VATX circuit and miraculously did not destroy anything, but did fry the power connection on the MoBo and power lead. I no longer use that brand.
While the PSU is out, take a good flashlight and start looking at the board for any visible signs of damage: melted solder or brown discolored PCB/solder paste, scorch marks. Check capacitors for any bulging (probably won't find any).
If you don't see any visible/physical damage, you are probably going to have to wait 'til you get the new PSU.
What brand and model etc. was the PSU? Have you already sent it back? and ifso are you replacing it with the same brand and model?
Other forum members, please helpRain2 out if you can.
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a b à CPUs
June 29, 2013 4:14:26 PM

Nostall, when you say "trusted brand", who are you referring to?
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a b à CPUs
June 29, 2013 4:55:44 PM

JRAtk94 said:
Nostall, when you say "trusted brand", who are you referring to?


send me a private message and I will respond. Don't want to post in forum, yet, as company has made improvement. But do talk to me.
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June 30, 2013 1:14:16 AM

nostall said:
Sorry, don't have much encouragement here. There is a possibility that other parts were damaged in your pc. The good sign is that the led lights came on. I have had two PSU failures in the last 14 years, both with major well trusted brand PSU; first one took the RAM and MoBo. Second failure was on the 12VATX circuit and miraculously did not destroy anything, but did fry the power connection on the MoBo and power lead. I no longer use that brand.
While the PSU is out, take a good flashlight and start looking at the board for any visible signs of damage: melted solder or brown discolored PCB/solder paste, scorch marks. Check capacitors for any bulging (probably won't find any).
If you don't see any visible/physical damage, you are probably going to have to wait 'til you get the new PSU.
What brand and model etc. was the PSU? Have you already sent it back? and ifso are you replacing it with the same brand and model?
Other forum members, please helpRain2 out if you can.


Did have a look on the psu, it was a damaged voltage regulator from what I can see, not other damage to anything else. If was a cheap PSU from an old rig, which was a replacement from when this has happened before (killing 8gb of RAM) Stupid idea to put it in my new rig but didn't have a choice at the time, just hoping its not 900 quid down the drain after two months aha
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a b à CPUs
June 30, 2013 7:33:14 AM

Rain2 said:
nostall said:
Sorry, don't have much encouragement here. There is a possibility that other parts were damaged in your pc. The good sign is that the led lights came on. I have had two PSU failures in the last 14 years, both with major well trusted brand PSU; first one took the RAM and MoBo. Second failure was on the 12VATX circuit and miraculously did not destroy anything, but did fry the power connection on the MoBo and power lead. I no longer use that brand.
While the PSU is out, take a good flashlight and start looking at the board for any visible signs of damage: melted solder or brown discolored PCB/solder paste, scorch marks. Check capacitors for any bulging (probably won't find any).
If you don't see any visible/physical damage, you are probably going to have to wait 'til you get the new PSU.
What brand and model etc. was the PSU? Have you already sent it back? and ifso are you replacing it with the same brand and model?
Other forum members, please helpRain2 out if you can.


Did have a look on the psu, it was a damaged voltage regulator from what I can see, not other damage to anything else. If was a cheap PSU from an old rig, which was a replacement from when this has happened before (killing 8gb of RAM) Stupid idea to put it in my new rig but didn't have a choice at the time, just hoping its not 900 quid down the drain after two months aha


Did you see any damage on the mobo? Like you, I am hoping that everything else survived.
At the very least you'll need a new PSU. If you list your components the forum can give you some suggestions, and knowing where you live (country) would help with recommended dealers near you. I am guessing Australia or New Zealand. Gotta go to work, I'll check back this afternoon (Pacific time, I'm in U.S.).
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