Computer shut down without any warning

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rig3rous
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Joined: 11/20/2007
Posts: 26

Update: Problem fixed, was overheating cpu

Hello all. Recently I've been having problems with my computer. It shuts down completely, as if the power cable was unplugged. There is no BSOD or anything, everything is just completely powered off. Whenever it happened I would be either gaming or doing something rather intensive. So I'm thinking it is something wrong with the PSU. However, today as I was just watching a single youtube video with nothing else running in the background (As far as I know), no other tabs open, just a browser with one tab, my display shut off. The monitor itself was still powered but nothing on the display. I look at my computer and the fans are all still running, I see green flashing from the MOBO where the ethernet cord is plugging in... everything else seems to be powered but the display is black. So now I'm thinking... is it the GPU? Maybe both??

What is your intake on this guys?

SPECS:

Antec EarthWatts 380D (Bronze certified)
Asus CuCore Radeon HD 5770
AMD Athlon II X3 Rana 445 @ 3.1ghz (4th core unlocked, otherwise stock)
BIOSTAR A880G+ AM3 AMD 880G HDMI Micro ATX AMD Motherboard
G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM

All stock cooling, using a rosewill challenger case with two 120mm fans (front and back) and one 140mm fan at top.

I think all my components are quality, no? It is my first computer built ~1 year ago maybe a little older. Everything brought new from newegg.

david179057
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the 5770 needs 450 Watt or greater power supply

Asus P8P67 Deluxe : i7 2600k : Corsair Vengeance 8 GB 1600
Asus GTX 560 Direct Cu II OC : Corsair H100
Kingston Hyper X 3K 120 GB : WD Caviar Black 1 TB : Windows 7 Home Premium
OCZ ZT 750W PSU : CM 690 II

rig3rous
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5770 only consumes like 110 watts at most. I read reviews that the 380D can support cards that use a bit more power.So...

Razear
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I have to agree with David on this one, it seems like your PSU is shutting down to protect itself because it isn't efficient enough to provide the necessary amount of wattage to your components.

david179057
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maybe the psu was barley enough when you bought it, but psu's degrade and now it might not be enough any more

david179057
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sorry if i spammed... my internet is turning itself on and off

eire1274
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Cleaned it up for ya, David.

The HD 5770 is a 110W draw, correct, but as David mentioned PSU's run hot when new, and tend to drop as much as 20% of their power output as they age. Secondly, older PSU's can see moments when their output drops momentarily, kind of an internal brownout. Hard to see what causes it, sometimes even at idle they can flutter.

GPU overdraw or overheat will cause a kick-and-restart situation with an error message; however, if the PSU is the culprit the GPU can lock and not display any error (or anything at all until the system is re-initialized).

My suggestion would be to get a better power supply. It's not an expensive part, but don't buy bottom of the barrel. Find something in the 450-500W range with a good warranty and good overall reviews. I'd expect $40 (US, anyway) ought to find you something decent.

Nick McDermott

rig3rous
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Basically what happens is that under load sometimes it shut down. Not like restarting but everything immediately powers off. No error messages, nothing. In the system event log it says something about critical error kernel-power 42 or something. I googled it and it turns out it may be power related. So I guess a new psu may be in order.

Tivon
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Has to be a reason the motherboard is shutting down the computer. Check the CPU temps. Check the bios and adjust the power plans and enable C1E support for Cool 'N Quiet in bios. If nothing looks wrong it could be a bad PSU. Everything above from eire1274 is spot on.

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spawnkiller
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For immediate restart and no motherboard error or whatever, i really suspect that your PSU is no more capable of running that card, like some of us says, PSU degrade over time so maybe he couldn't even stay at 380w now...

they have some really nice PSU from 40-50$ in the 500-600w range (i really suggest you to buy good brand with great warranty, that give a great idea about how long their product should last...)

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rig3rous
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IT WAS AN OVERHEATING CPU THIS ENTIRE TIME!!! I removed stock HS TIM, applied AS5, and jury rigged a small (45mm?) fan using cable ties to he side of my case. I ran prime95 and it has been stable for a while, whereas before it would only last 2 minutes lol. So problem fixed :)

The Antec 380D is not to be underestimated :)

eire1274
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Wow, there is an issue, then! The BIOS and CPU have thermal overload protection and should be warning you of this issue. Have you turned these features off? Are you running Cool'&'Quiet with the Windows plug-in?

Nick McDermott

rig3rous
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I haven't messed with any settings within the bios except to lock/unlock the fourth core on my cpu. How should I be "warned?" Is there suppose to be a blue screen or something that it crashes to once it over heats?

I have no idea about the cool n quiet thing :p

spawnkiller
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Glad you solve your problem ;)

rig3rous
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Thanks :)

I was dreading at the thought of going through the rma with the psu. The shipping would have costed half the psu >.>

Is there an aftermarket heat sink you guys recommend?

Ratchet
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rig3rous wrote:I have no idea about the cool n quiet thing :p

Cool N Quiet is similar to Intel's Speedstep technology, which throttles down your CPU's speed when idle to save power. Only thing, it's AMD's trademark.

rig3rous
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Ratchet wrote:rig3rous wrote:I have no idea about the cool n quiet thing :p

Cool N Quiet is similar to Intel's Speedstep technology, which throttles down your CPU's speed when idle to save power. Only thing, it's AMD's trademark.

Yep it is enabled. I have observed this effect when I had cpuid open and the clock speed was very low and as soon as I ran a game it went back to 3.1ghz. I don't know where to find the control panel for it though.

spawnkiller
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i can recomend you Noctua NH-U12P se2 (my cpu never go to 60 celsius with 1.55V vcore and 1.5v VTT in it) or any pre-filled liquid cooling solution (Corsair H80 is really really good or H40 if you don't want to overclock cause the noctua and the h80 are about 90-100$ when the h40 is 55-60$) however i see similar temp than a H80 but i'm on air...

PS: also great thermal paste is a must if you plan to overclock (but much manufacturer include their high quality TIM in their bundles)

If you don't want to pay more than 40 bucks, there's the cooler master hyper 212 that falls into this range and it's really (if not) one of the best out here (i don't know about your level of "sound comfort" but plan to change the fan included if you want a quiet solution)

http://www.coolermaster.com/product.php?product_id=6603
heres a review of it vs other heatsinks. http://www.tomshardware.com/reviews/lga-1156-heatsink,2535-14.html

Ratchet
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rig3rous wrote:Yep it is enabled. I have observed this effect when I had cpuid open and the clock speed was very low and as soon as I ran a game it went back to 3.1ghz. I don't know where to find the control panel for it though.

This can be disabled in the BIOS menu. It's not good to have it on if you're doing lots of gaming. Refer to your motherboard's manufacturer's instructions on how to get into the BIOS and how to disable Cool N Quiet.