Computer keeps shutting down

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Kaminski

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Mar 15, 2015
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Hi toms hardware!

So, my computer has been shutting down in the past and I thought it was due to memory issues so, I took out a stick that I presumed was faulty and decided to purchase brand new RAM. I put the new RAM in and it was working good for a bit and then my computer decided to shut down. No blue screen, no errors, nothing.

MY two leading theory's are either my CPU fan is not adequate enough and my PC overheats (I have the stock AMD fan that came with my CPU)

or my power supply is failing. I've looked online for solutions and could not find anything to help me.

My specs are:
AMD FX 8350
Corsair 650m
Gigabyte 990FXA-UD3
8 GB of (brand new, purchased the day of this post) HyperX Savage 1600mhz ram
AMD Radeon HD 7870

Any other information you might need let me know, I'll try responding ASAP to every suggestion!
Thank you! :)

Also, I looked in event log and got the Event ID = 41, Kernel Power if this helps


 
Solution
Karadjgne
Need a couple of things.
1. What psu, make and model, age.
2. Temp readings as reported by Realtemp, coretemp or hwmonitor, at idle and load.
3. Exactly what conditions are present when the shutdowns occur. Is it during heavy gaming, just idle, are you actively on the pc surfing, is it after a certain amount of time on etc
4. OC or not, what speeds and voltage if it is.
5. Airflow, what fans do you have in what case.

While some of this may seem irrelevant, its useful only if to rule out certain factors
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Karadjgne

Karadjgne

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Dec 26, 2012
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Need a couple of things.
1. What psu, make and model, age.
2. Temp readings as reported by Realtemp, coretemp or hwmonitor, at idle and load.
3. Exactly what conditions are present when the shutdowns occur. Is it during heavy gaming, just idle, are you actively on the pc surfing, is it after a certain amount of time on etc
4. OC or not, what speeds and voltage if it is.
5. Airflow, what fans do you have in what case.

While some of this may seem irrelevant, its useful only if to rule out certain factors
 
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Solution
K

Kaminski

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Mar 15, 2015
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4,510


Thanks for responding!

1. This is my PSU http://www.newegg.ca/Product/Product.aspx?Item=N82E16817139048&cm_re=Corsair_psu-_-17-139-048-_-Product I've had it for about 1 year
2. Temp at idle was: 31 degrees, max read was 80. I couldn't really get temp readings on load because that's when my computer would shut off, but I ran a benchmark for 10 seconds because that's as much as I TRIED to get without crashing (Arma 2 Benchmark 1) and I got 42 degrees.
3. Shutdowns occured only when I decided to play a game, in this case Arma 2. I think it shuts down during any games I want to play.
4. Not overclocked
5. I have 4 case fans in a cool room with good cable management.

I'm leaning toward the power supply failing because I feel I'm not getting enough volts from my PSU. (If that's even possibl

 
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Karadjgne

Karadjgne

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Well the CXM 600 isn't a bad psu, not great, but not bad either, and your 7870 only needs a 500w, so the psu should be more than able to supply necessary voltage etc, especially since the cpu isn't OC.
4 case fans on that mobo, good airflow, no worries there either.

What does worry me is the cpu temps. 31 at idle is fantastic for a stock cooler. I'm assuming you let the pc sit for about 15 mins before looking at that temp, time enough to let the heat balance between case and cpu. 80 during normal, pregame usage? Way, way too high, at most should be 50-60 under a light load like net surfing etc. Only under heavy load should it come close to 70ish, but 80 is bad.

When was the last time you pulled the fan off the heatsink and scrubbed the debris out from the fins? Cleaned the cpu fan blades? At that temp, your cpu fan should sound like a freight train. Does it? Have you ever fully removed the heatsink from the motherboard?
 
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K

Kaminski

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Mar 15, 2015
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I have never pulled the fan off from the heatsink, I can try that. I have put a vacuum to the fan blades and the fins however, although I'm not sure how good that will work. I don't think it's overheating because I was playing games fine with no problem (except the fact that 4 gb of ram while playing big games isn't the best thing in terms of FPS) until I plugged in my RAM modules. I'll pull the fan off the heatsink and check it out. I was planning on chucking out this fan any way but I didn't know I needed it badly. I know for a FACT the ram is working in tip top condition.
 
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K

Kaminski

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Mar 15, 2015
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ALSO, I think that you mis-interpreted what I said or I just failed to word it correctly, my CPU has never spiked to 80 degrees, I think that coretemp put the 80 degrees to show the maximum possible temperature before the computer shuts off, something among those lines, here are some screen shots of the menus. The pictures are the CPU with no load and the CPU running the benchmark 1 in Arma 2, in that order.

tPHYpRE.png


Hyu6CmP

 
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Karadjgne

Karadjgne

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Yeah, if there is a considerable amount of debris in the heatsink, it'll drastically alter the cpus ability to dissipate heat, causing the pc to shut down in an attempt to prevent thermal damage to the cpu.

From MS Support :

The kernel power event ID 41 error occurs when the computer is shut down, or it restarts unexpectedly. When a computer that is running Windows starts, a check is performed to determine whether the computer was shut down cleanly. If the computer was not shut down cleanly, a Kernel Power Event 41 message is generated. 

So basically that's of no help, because you are getting a shutdown, then its telling you you shut down. Thermal limits can be a cause however, and thats where I think you'll find the problem. Cpu is overheating, either due to inability to dissipate heat, or you are running stock (auto) voltages that are usually much higher than needed, creating more heat than necessary, or a combination of both.
 
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K

Kaminski

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Mar 15, 2015
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Pulled off my CPU cooler (stock AMD one) and it stuck to the processor, after performing some delicate surgery, I managed to free them from one another (CPU still works I think but PC won't get past the first boot screen, hopefully due to the lack of a fan) I'm going to purchase a new cooler HOPEFULLY tomorrow and if the problem persists the only other explanation would be a faulty PSU. I'll be back with more details soon, hopefully the issue will be resolved :p
 
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K

Kaminski

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Mar 15, 2015
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Bought a hyper 212 evo and an extra case fan, pc is silent as hell and I think I can play games now.
Thanks so much for your help, I'm glad I didn't waste my money on another PSU :ange:
 
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