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[Solved] System rebooting when gaming

post #1 of 8
Thread Starter 
Hey guys, a mate of mine has a system that has started to reboot upon trying to play games, at first I thought it was overheating as the ideling temperature of the CPU was 57C so I stripped, cleaned, and reseated the heatsink with new thermal compound after using isopropylene to clean both surfaces, which dropped the temperature down to 32C (25C less) but it is still doing it. Ambient is around 24-27C

It's not overclocked at all, everything is on Auto. Is has a PowerMax 600 watt powersupply and a 6770 video card. I think that the power supply may not have enough amps to power the card, but I've never heard of a system rebooting from lack of power, it would just shut down, right?

It's currently happening on Sims 3, after about 5 seconds of starting the game, no blue screen, no event log, just reboots.

Just wondering if anyones had this happen with ionsuffiecient power before I go and buy a powersupply, as I have no spares to test.

It's a Q6600 cpu
post #2 of 8
    Normally, a PSU should detect an overload condition and shut off, as you said.  But they don't always detect noisy output power.  Noisy output power from the power supply can cause the computer to suddenly black out and reboot when tasked with a high graphics and/or CPU load.  This is frequently caused by failing capacitors in the PSU.  That would be my first guess. smile.gif

    If the CPU overheats, in most cases the system either powers off or freezes, rather than rebooting.  Just so you know. thumb.gif
 
Edited by Techie007 - 4/13/14 at 10:34pm
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post #3 of 8
can you use on board graphics? - hence take out vga card and if it runs ok then maybe it is the psu not functioning properly.

Cos in my eyes a 600watt psu is more than enough thumb.gif
post #4 of 8
Quote:
Originally Posted by Noviets View Post

Hey guys, a mate of mine has a system that has started to reboot upon trying to play games, at first I thought it was overheating as the ideling temperature of the CPU was 57C so I stripped, cleaned, and reseated the heatsink with new thermal compound after using isopropylene to clean both surfaces, which dropped the temperature down to 32C (25C less) but it is still doing it. Ambient is around 24-27C

It's not overclocked at all, everything is on Auto. Is has a PowerMax 600 watt powersupply and a 6770 video card. I think that the power supply may not have enough amps to power the card, but I've never heard of a system rebooting from lack of power, it would just shut down, right?

It's currently happening on Sims 3, after about 5 seconds of starting the game, no blue screen, no event log, just reboots.

Just wondering if anyones had this happen with ionsuffiecient power before I go and buy a powersupply, as I have no spares to test.

It's a Q6600 cpu

If the heatsink was improperly installed and/or the thermal grease was insufficient, it's possible the CPU is damaged from extended use at elevated temperatures. If you cleaned it off, re-greased it, and it dropped 25C, imagine the temps it was pegging at while under full load before you did the work.

A true 600W PSU has plenty of power to run a 6770 and Q6600. Whether or not the PSU is performing to specification is anybody's guess.

I'd give the RAM a good check with an overnight run of Memtest 86+ and ensure there are no errors. Bad RAM can cause the symptoms you describe, as would a failing PSU or CPU.

Greg
post #5 of 8
Does he have enough power running to the gpu? My friend had the same problem and he had the wrong power cables plugged into his gpu so it wouldn't get enough power and his computer would restart. A 600watt psu is more than enough even with a slight overclock of the cpu and gpu. Good luck getting his computer up and running biggrin.gifthumb.gif
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post #6 of 8
Thread Starter 
Turns out it was the PSU, even though it's rated at 600W it's only putting out approx 6amps to the 12v rail.

Got the RM750 PSU in there now, running like a champion. smile.gif
post #7 of 8
Quote:
Originally Posted by Noviets View Post

Turns out it was the PSU, even though it's rated at 600W it's only putting out approx 6amps to the 12v rail.

Got the RM750 PSU in there now, running like a champion. smile.gif

Why in gods name did you get an RM?
http://www.overclock.net/t/1455892/why-you-might-not-want-to-buy-a-corsair-rm-psu
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post #8 of 8
Quote:
Originally Posted by Noviets View Post

Turns out it was the PSU, even though it's rated at 600W it's only putting out approx 6amps to the 12v rail.

Got the RM750 PSU in there now, running like a champion. smile.gif

    Not surprising.  Glad to hear that the new PSU is working well for you! thumb.gif
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