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Possible power supply problem? Opinion and ideas wanted.

post #1 of 5
Thread Starter 
I have a Corsair Professional HX750. Been experiencing some weird problems lately...

When playing Far Cry 3 (the most demanding game I currently have) while overclocked to 4.8 Ghz, I am experiencing random restarts once every 20 minutes to an hour or so.

When playing Far Cry 3 after a CMOS reset to stock CPU settings and running stock GPU settings, the random resets still occur but are few and far between. They still happen occasionally at stock settings.

While playing Hawken (a far less demanding game) the random resets do not occur.

When a random reset does happen (being at stock settings or overclocked makes no difference), it will take the computer several attempts to boot into windows. The computer will repeatedly turn off during post and the Windows boot.

Last night while I was sleeping, I woke up to my computer randomly restarting for no reason.

I have been running at 4.8 GHz for a year and a half without any problems, only recently did these problem start to happen. The resets also still occasional occur at stock settings. I do not believe my overclock is to blame.

The resets still occur if am plugged into the surge suppressor or plugged into the wall outlet directly. My wall outlet has 115 VAC. I do not believe the power delivery to my computer is to blame.

M hardware is as follows:
7 (yes, seven) hard drives.
1 Asus DCII GTX 570 usually running at 1.138V @ 920 MHz
1 I5 2500K usually OC'ed to 1.45V @ 4.8 GHz

A 750 quality watt PSU should be more adequate, right?

The problem seems like it is becoming worst. I am waiting for something to completely fail.

Under load my +12V line goes from 12.038 to 11.883. EDIT: --> http://pcsupport.about.com/od/insidethepc/a/power-supply-voltage-tolerance.htm I should be safe down to 11.4 VDC on the +12V rail in "theory".
Edited by crimsontears809739 - 3/17/13 at 12:14pm
Deus Ex Machina
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Deus Ex Machina
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Dell Computer 5 Series/3400 Series Chipset Fami... 
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post #2 of 5
would you please try doing one ram at a time. it might be ram problem not psu problem..
try one stick in the nearest port to the cpu. if it failed. try the other one.i would suspect ram before psu in these random shut downs
BEAST
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BEAST
(26 items)
 
The Wifey's Rig
(14 items)
 
The Black Pearl
(25 items)
 
CPUMotherboardGraphicsGraphics
intel i7 3770K Gigabyte Z77 UD3R Sapphire Radeon r9 290x Sapphire Radeon r9 290x 
RAMHard DriveHard DriveHard Drive
Corsair Vengeance 8GB seagate barracuda 7200 RPM 1 TB PNY 120GB SSD PNY 240GB SSD 
CoolingCoolingCoolingCooling
ek supermacy full nickel Mayhem Pastel white  Mayhem blue non stain dye ek FC r9 290x 
CoolingCoolingCoolingCooling
ek fc r9 290x  swiftech mcp655 Koolance COV-RP450  EK-CoolStream RAD XT 240mm 
CoolingCoolingCoolingMonitor
Swiftech MCR320 360MM  Primochil ghost rigid compression fittings Primochill PETG Tubes X-star 
KeyboardPowerCaseMouse
Nixeus moda v2 EVGA SuperNova GS850 NZXT H440 Logitech G400 
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Razer Goliathus Asus Xonar DGX 
CPUMotherboardGraphicsRAM
intel i5 4430 Asrock z78 pro 4 Sapphire 7870 XT G.Skill Aries 8GB 
Hard DriveCoolingOSMonitor
A LOT OF THEM Corsair H80 Windows 7 ultimate Samsung 
KeyboardPowerCaseMouse
Cooler Master Quickfire TK Corsair 650XT Thermale take armor revo 4 Cooler master storm xornet 
Mouse PadAudio
Steelseries CKQ Steelseries Flux luxury edition 
CPUMotherboardGraphicsRAM
Intel i7 3770k GigaByte GA-Z77x-UD3H sapphire R9 290X Corsair Vengeance 8GB  
Hard DriveOptical DriveCoolingCooling
western digital caviar blue Samsung HF-132B Corsair Sp120 Corsair AF AF120 LED 
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post #3 of 5
Thread Starter 
Good point. My friends computer had random shut downs a few years ago well and it turned out to be ram. I had forgotten to consider that. Going to run memtest86+ right now.
Deus Ex Machina
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Audio
Dell Computer 5 Series/3400 Series Chipset Fami... 
CPUMotherboardGraphicsGraphics
Athlon 64 X2 6400+  Asus M2N-E Nforce 500 SLi 8800GT  9800 GT 
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OCZ ReaperX WD LG lightscribe Multilayer DVD burner Windows 7 
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Antec 500W Smartpower 2.0 Aspire X-Navigator 
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Deus Ex Machina
(19 items)
 
   
CPUMotherboardGraphicsRAM
i5 580M Dell 0R1203 NVIDIA Quadro FX 2800M Samsung 4Gb 
Hard DriveHard DriveOptical DriveOS
TOSHIBA MK3256GSYF  TOSHIBA MK3256GSYF  DVD-Rom HL-DT-ST DVD+-RW GU40N Windows 7 Professional 
Audio
Dell Computer 5 Series/3400 Series Chipset Fami... 
CPUMotherboardGraphicsGraphics
Athlon 64 X2 6400+  Asus M2N-E Nforce 500 SLi 8800GT  9800 GT 
RAMHard DriveOptical DriveOS
OCZ ReaperX WD LG lightscribe Multilayer DVD burner Windows 7 
PowerCase
Antec 500W Smartpower 2.0 Aspire X-Navigator 
  hide details  
Reply
post #4 of 5
Thread Starter 
Update: Ran Memtest86+ for 4 complete passes. No problem were found. My computer ran all last night. No restarts. The problem seems very touch-and-go.

I ran prime 95 and the uniengine valley benchmark while everything was overclocked to the max, no restarts. +12 VDC dropped down to 11.827 at the most intensive part.

I have a single 62A 12+ Volt rail. There should be no way I am taxing that with a single card setup.

So frustrated! cryingsmiley.gif
Edited by crimsontears809739 - 3/18/13 at 9:02am
Deus Ex Machina
(19 items)
 
   
CPUMotherboardGraphicsRAM
i5 580M Dell 0R1203 NVIDIA Quadro FX 2800M Samsung 4Gb 
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TOSHIBA MK3256GSYF  TOSHIBA MK3256GSYF  DVD-Rom HL-DT-ST DVD+-RW GU40N Windows 7 Professional 
Audio
Dell Computer 5 Series/3400 Series Chipset Fami... 
CPUMotherboardGraphicsGraphics
Athlon 64 X2 6400+  Asus M2N-E Nforce 500 SLi 8800GT  9800 GT 
RAMHard DriveOptical DriveOS
OCZ ReaperX WD LG lightscribe Multilayer DVD burner Windows 7 
PowerCase
Antec 500W Smartpower 2.0 Aspire X-Navigator 
  hide details  
Reply
Deus Ex Machina
(19 items)
 
   
CPUMotherboardGraphicsRAM
i5 580M Dell 0R1203 NVIDIA Quadro FX 2800M Samsung 4Gb 
Hard DriveHard DriveOptical DriveOS
TOSHIBA MK3256GSYF  TOSHIBA MK3256GSYF  DVD-Rom HL-DT-ST DVD+-RW GU40N Windows 7 Professional 
Audio
Dell Computer 5 Series/3400 Series Chipset Fami... 
CPUMotherboardGraphicsGraphics
Athlon 64 X2 6400+  Asus M2N-E Nforce 500 SLi 8800GT  9800 GT 
RAMHard DriveOptical DriveOS
OCZ ReaperX WD LG lightscribe Multilayer DVD burner Windows 7 
PowerCase
Antec 500W Smartpower 2.0 Aspire X-Navigator 
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Reply
post #5 of 5
I'd blame the overclocks before anything else, or at least investigate that as a possibility.

Eventually the extra voltage and maybe extra temps, with enough usage, will result in enough damage to make a stable overclock a little less stable, which could cause issues in some workloads but maybe not in others (yet). It's not a matter of "if" but "when", at least assuming you don't toss the chip before you reach that point anyway—which is common.

It also could be the power supply is defective / something popped / it doesn't quite work to spec anymore, drivers, whatever else.
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