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System Shutdown During Gaming

post #1 of 5
Thread Starter 
Hello all,

I've been pulling my hair out trying solve this problem.

The computer will shutdown immediately after a few minutes of playing a relatively system intensive games. Notably, StarCraft II.

The following is a list of things I've tried/ruled out:
- malware, viruses, etc
- different GPU; ATI 6870, ATI 5770, GeForce 9600GT; computer turns off
- GeForce 8600 GT; system stays on, albiet much lower graphics
- Windows 8.1, Windows 7 and even Arch Linux; system shuts down (all 64-bit systems)
- temperatures seem well within limits under system load; CPU ~45c GPU ~65c hard drives ~30-35c
- all fans are running, no strange noises, usually very quiet
- adjust voltage on 6870 GPU +/-
- unplugged all hard drives, installed game on 1 SSD (OCZ); system turns off
- removed extra USB sticks, extenders
- checked for loose power connectors to mother board

I suspect the power supply, but not ruling out RAM sticks, CPU cooler, or mother board. The strange thing is after a shutdown, it's like trying to start a car in the winter. Sometimes all fans turn on, but the BIOS doesn't post.

After letting the capacitors discharge, I eventually get a POST and things appear normal. Then I'll try playing a game and the process starts all over again.

I would appreciate any thoughts. My system specs. should be in my signature, if not, I'll post them.

Thank you. smile.gif
Custom Built
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CPUMotherboardGraphicsRAM
AMD Phenom II X6 1090T Gigabyte 990fxa-UD3 AMD Radeon HD 6870 G.Skill 
CoolingOSMonitorKeyboard
ECO Cool IT ALC Windows 8.1 LG W22F3T Razer Lycosa 
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Custom Built
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ECO Cool IT ALC Windows 8.1 LG W22F3T Razer Lycosa 
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post #2 of 5
try running memtest but I'm thinking this is a PSU issue. I had one very similar to this.

Is that model of PSU known for bad caps? perhaps your revision maybe?

I had this problem just recently with a old rosewill psu unit.

Flicking the back switch and then pressing the power button would let me turn it on, but before I found that turning it on was a serious chore.
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post #3 of 5
Thread Starter 
Hi Alanim,

Thank you for the reply. smile.gif

Yes, memtest, I completely forgot about that.

The PSU is fairly old; 2006 or so. I haven't noted any problems beforehand however.

And that's exactly what I have to do; flicking the power switch, it eventually turns on, posts.

In the meantime, I 'll do a memtest and seek out another PSU, 14 day return at the computer shop, enough to test it out.

Thanks once again. Much appreciated !
Custom Built
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AMD Phenom II X6 1090T Gigabyte 990fxa-UD3 AMD Radeon HD 6870 G.Skill 
CoolingOSMonitorKeyboard
ECO Cool IT ALC Windows 8.1 LG W22F3T Razer Lycosa 
PowerMouseAudio
OCZ 500 W Logitec G500 Realtek 
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Custom Built
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CPUMotherboardGraphicsRAM
AMD Phenom II X6 1090T Gigabyte 990fxa-UD3 AMD Radeon HD 6870 G.Skill 
CoolingOSMonitorKeyboard
ECO Cool IT ALC Windows 8.1 LG W22F3T Razer Lycosa 
PowerMouseAudio
OCZ 500 W Logitec G500 Realtek 
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post #4 of 5
I'd suspect the power supply first, as well, and do that swap.

Also, if it's a thermal shutdown due to CPU overheating the symptoms could be similar - the components need to cool down before the system POSTs properly.
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RYZEN
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OFFICE PC
(12 items)
 
20TB_HOMENAS
(9 items)
 
CPUMotherboardGraphicsRAM
Ryzen 1700X ASRock Fatal1ty X370 Professional Gaming XFX 390x Corsair Vengeance LPX 64GB DDR4 
Hard DriveOptical DriveCoolingOS
A bunch of swappable SSDs LG BD-ROM Thermaltake CL-P039-AL12BL-A Contac Silent Windows 7 
MonitorKeyboardPowerCase
Generic Korean 32" 4K Generic mechanical rainbow LED lit SeaSonic G Series 550-Watt AZZA Helios 910 CSAZ-910 
MouseAudio
Logitech G500 T1 24BIT Tube USB DAC 
CPUMotherboardGraphicsRAM
AMD Athlon II X2 255 ASRock 970DE3/U3S3 Radeon X300 Kingston KHX1600C9D3/4GX 
Hard DriveHard DriveHard DriveHard Drive
8x Samsung HD204UI 7x Seagate ST2000DM001 Transcend TS16GSSD25-S 2x WD WD40EZRX 
Case
AZZA Helios 
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post #5 of 5
Thread Starter 
Hello FastMHz,

Thank you for the input.

Good point. I never thought of components needing to cool down.

Core Temp. reports 25-27 C during normal operation. Shutting down from this state exhibits the same behaviour; i.e. no POST until some time has passed.

I also started a full memtest and let it run until 53%. But it was late and got tired so I ended the process. Will do the full test, but up until that point, no errors were found. Also using 'Turbo Core' on the motherboard. I usually overclock to ~3.6 GHz on all 6 cores.

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Custom Built
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CPUMotherboardGraphicsRAM
AMD Phenom II X6 1090T Gigabyte 990fxa-UD3 AMD Radeon HD 6870 G.Skill 
CoolingOSMonitorKeyboard
ECO Cool IT ALC Windows 8.1 LG W22F3T Razer Lycosa 
PowerMouseAudio
OCZ 500 W Logitec G500 Realtek 
  hide details  
Reply
Custom Built
(11 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II X6 1090T Gigabyte 990fxa-UD3 AMD Radeon HD 6870 G.Skill 
CoolingOSMonitorKeyboard
ECO Cool IT ALC Windows 8.1 LG W22F3T Razer Lycosa 
PowerMouseAudio
OCZ 500 W Logitec G500 Realtek 
  hide details  
Reply
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