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Computer instantly shutting down without warning

T

tyrspawn

n00b
Joined
Jun 22, 2012
Messages
7
Computer stats:
http://www.krauselabs.net/dump/dxdiag.txt


Idle power/temps:
http://www.krauselabs.net/dump/idle.png


Load power/temps:
http://www.krauselabs.net/dump/load.png


History:
- Summer arrives, high 70s a few weeks ago, up to mid 90s F now
- Over past 3 weeks, noticed high CPU temps, 60-80 c
- Thought hard-drives were overheating, remounted hard-drives apart, tried to boot computer, computer would no longer turn on - no fan spin, no lights, nothing.
- Did noob application of new thermal paste, using fingers, over old thermal paste
- Turned out my PSU died (coincidence or possibly related) - got new PSU
- Computer worked fine, although still running hot
- Over past few days computer instantly shuts off without warning at random times while not under load, only happens once or twice a day. The only way to turn it back on is to disconnect the power cord, discharge the power by pressing the power switch, and then plugging it back in and powering on.
- Wake up yesterday, notice monitor is in stand-by cycle - monitor is now broken and takes like 10 minutes to boot up
- Yesterday: cleaned all thermal grease from cpu/heatsink, reapplied Arctic Silver 5 using specific instructions, idle temp went from high 50s to low 40s and load temp went from 60s-low 80s to mid 50s.
- Computer still randomly shutting off.
- Example: Last night, 3 AM, computer instantly shuts off while I am just browsing the internet, no warning and idle load
- Turn computer back on, go to bed, wake up, it's still on. Quickly check my email, go to bathroom, come back, computer off. Turn it back on, write this post.


Any ideas what's going on here?


I thought it might have been bad wall power - as my power cord was previously directly connected to the wall outlet, so I moved it to my power strip - still happening. No other applications on said strip lose power.


I also thought it might have been an overheating video card, but as you can see, the temps are fine. I am really at a loss here, is this PSU a lemon too? The only significant environmental change is that it's hot as hell now, which leads me to think overheat - but it doesn't look like anything is overheating, and all but one of the shut offs have been at night when its coolest, the only daytime one being just now - although what's up with those weird readings on the ssd?
 
That DXDIAG doesn't tell us all of the specs of your PC. So please list what PSU (both the old and new), case, motherboard, what specific RAM you're using, etc. In other words, every spec of your PC.
 
PSU: http://www.amazon.com/Thermaltake-Power-Supply-240-Pin-W0388RU/dp/B002RWJGHM

ram:
http://www.newegg.com/Product/Product.aspx?Item=N82E16820220435

mobo:
http://www.newegg.com/Product/Product.aspx?Item=N82E16813131603

CPU:
http://www.newegg.com/Product/Product.aspx?Item=N82E16819103808

I took apart my GTX 260 today to clean it out (thought it might be overheating) and reapply thermal and found that the fan was sticking due to a clump of dust. Hopefully that was the culprit, we shall see. My GPU is idling about 7-8 C lower now, hard to test for load if i'm in a game but i will try.
 
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Yeah... so that didn't fix it. Still crashing, and it's becoming more frequent now. 3 times today so far, and it's been a milder day.
 
That PSU is not a very well rated unit. It is a consistent underperformer with sketchy voltage regulation. I would suspect that before anything else.
 
tyrspawn said:
So the -12 v is -6 - isn't that messed up?
Click to expand...

Unless that's taken with a digital multi-meter, ignore that figure.

The PSU you have is pretty crappy. So try to get a good PSU for once. I recommend this replacement:
$64 - Antec NEO ECO 520C 520W PSU

A possibility is that your old PSU might have damaged your PC when it died. And/or the Thermaltake PSU is pretty much exacerbating the problem.
 
Danny Bui said:
Unless that's taken with a digital multi-meter, ignore that figure.

The PSU you have is pretty crappy. So try to get a good PSU for once. I recommend this replacement:
$64 - Antec NEO ECO 520C 520W PSU

A possibility is that your old PSU might have damaged your PC when it died. And/or the Thermaltake PSU is pretty much exacerbating the problem.
Click to expand...

Why do you both say the psu is bad? I see some bad reviews, but i also see some bad reviews for any psu. It doesn't seem to have a disproportional amount of bad reviews.
 
tyrspawn said:
Why do you both say the psu is bad? I see some bad reviews, but i also see some bad reviews for any psu. It doesn't seem to have a disproportional amount of bad reviews.
Click to expand...
When it comes PSU reviews, stick to the sites that actually do proper PSU reviews as you're gonna get far more accurate information about a PSU than you will with user reviews. This site lists all of the current proper PSU review sites:
http://www.overclock.net/t/738097/psu-review-database

As for why we say that PSU is bad, any computer hardware enthusiast worth his/her salt would know that Thermaltake's TR2 PSUs are Thermaltake's extremely low-end PSU line. As such, none of them can ever provide anywhere near what they're supposedly rated at under real world conditions. In other words, if you see a 600W one, it's more likely only capable of 300W to 400W under real world conditions. In fact, the only good Thermaltake PSUs out now are part of their Toughpower related lines. Any other Thermaltake PSU brand is pretty much guaranteed to be crap. I can guarantee you without a doubt that you will not find a proper PSU review showing that a TR2 PSU is good.

Here's a review of a newer TR2 model but still demonstrates that the TR2 line should be avoided:
http://www.hardwaresecrets.com/article/Thermaltake-TR2-RX-750-W-Power-Supply-Review/902
 
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