Computer powered off, electric smell was present

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davidticknor

Honorable
Nov 17, 2012
72
0
10,630
Hello,

I built my desktop back in November of 2013. It has been a very solid machine, other than my RAM dying about a year ago. Anyways, today I was playing GTA5, and the computer shuts down. I look down into my case and my GPUs LEDs are still on, but the computer is off and will not turn back on if I push the power button. This is when I noticed some electronic smell. I immediately turned off the devices PSU power switch and unplugged it. The smell primarily came from my Radiator fan which is exhausting on the back of my case. I thought maybe the PSU shorted out or failed. After giving it a "sniff test" there is no smell like present above inside of the psu. I am thinking that maybe my CPU fan failed, and I did not notice until the CPU itself overheated and the rig shut down. I am coming to you guys today asking for tips or suggestions of how to figure out if it was just a fan failure or a more serious issue. I want to turn the desktop back on to see if the fan did in fact fail, but since I am in an apartment I feel like that is too big of a fire hazard for me to risk it.

Thank you

Edit 1:
I will post a picture of my Mobo. I do not see any evidence of shorting, or burst capacitors. The same goes for the back side of the mobo.

http://imgur.com/a/Zzz2Q
 
Solution
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That will certainly do it. I think you mean VRM, not VRAM. While the board may say it's suitable for a 140 W CPU, that may only be under certain conditions, such as with a standard CPU cooler that will cause enough airflow over the VRM heat sinks.

While you haven't said that you did, if you were running an overclocked 83xx series FX CPU, you probably blew right past the 140 W mark.

The other thing I see is that it's a 4+1 VRM configuration. While this isn't a bad thing, it does mean that you have to have significantly higher capacity components, and hopefully at the same time they chose better quality. You don't get leeway with the components, so if any of the parts were marginal, or being run close to their rated capacity... Well...
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bigpinkdragon286

Splendid
Oct 3, 2012
4,648
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That will certainly do it. I think you mean VRM, not VRAM. While the board may say it's suitable for a 140 W CPU, that may only be under certain conditions, such as with a standard CPU cooler that will cause enough airflow over the VRM heat sinks.

While you haven't said that you did, if you were running an overclocked 83xx series FX CPU, you probably blew right past the 140 W mark.

The other thing I see is that it's a 4+1 VRM configuration. While this isn't a bad thing, it does mean that you have to have significantly higher capacity components, and hopefully at the same time they chose better quality. You don't get leeway with the components, so if any of the parts were marginal, or being run close to their rated capacity... Well, you see the results first hand.
 
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davidticknor

Honorable
Nov 17, 2012
72
0
10,630



Yes I see that now! I am currently looking at a Ryzen 1600X, and not a cheap motherboard! Thank you for your input, that all makes sense. I was running an 8320 very slightly over clocked! This was my first build, and like you said I see first hand when I cheapen out on a motherboard.
 
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