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Uh oh, PSU dying?

post #1 of 4
Thread Starter 
Guys I may need some help here. I was running my 7950 mining (undervolted to 1.150 from 1.188) with my 6850 playing BF4 (undervolted to 1.140 from 1.150) and was also recording. Basically I was pushing every part of my rig to maximum usage and 10 minutes later, my computer shut off. I worried it may be by PSU dying but how can i trouble shoot this? Could it have been my PSU hitting its thermal limit and shutting off? How can i know? My computer came back on after I unplugged and re plugged it but im nervous about trying anything stressful again. Thanks in advance.
The Sleeper
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Sony Xperia Z3
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AMD FX 8320  Asus Sabertooth 990FX R2.0 MSI Radeon 7950 MSI Radeon 7950 
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8GB Crucial Ballistix Sport 1600mhz Samsung 470 SSD Corsair H80i Windows 7 64 Bit Home Premium 
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Corsair HX850 Coolermaster HAF 932 
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Intel SU7300 Core2Duo 1.6 Ghz Alienware OEM Nvidia 335m 8 GB PNY memory 
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The Sleeper
(10 items)
 
 
Sony Xperia Z3
(7 items)
 
CPUMotherboardGraphicsGraphics
AMD FX 8320  Asus Sabertooth 990FX R2.0 MSI Radeon 7950 MSI Radeon 7950 
RAMHard DriveCoolingOS
8GB Crucial Ballistix Sport 1600mhz Samsung 470 SSD Corsair H80i Windows 7 64 Bit Home Premium 
PowerCase
Corsair HX850 Coolermaster HAF 932 
CPUMotherboardGraphicsRAM
Intel SU7300 Core2Duo 1.6 Ghz Alienware OEM Nvidia 335m 8 GB PNY memory 
Hard DriveOSMonitor
Samsing 840 SSD Windows 7 Home Premium 64-Bit Generic PNP monitor @ 75hz 
CPUGraphicsRAMHard Drive
Snapdragon 801 @ 2.5 Ghz Adreno 330 3 GB 32 GB  
CoolingOSMonitor
Blow on it Android 4.4.4 1920x1080 LCD 
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post #2 of 4
I would say your CX750 psu just couldn't keep up.
but the only way to test would be to connect a multimeter to a spare sata power cable on the psu
and do the same think you were doing to make it shut and watch the multimeter when it kicks off.
Old X58
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EVGA SuperNova G2 1000w Corsair C70 Corsair M65 Sound Blaster Z 
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Old X58
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CPUMotherboardGraphicsRAM
i7 970 6 core ASUS Sabertooth X58 MSI GTX 1070 Gaming X GSkill 24 gigs 
Hard DriveHard DriveHard DriveCooling
Crucial MX100 256 gig Crucial M500 120gig WD VelociRaptor 1TB Noctua 
OSMonitorMonitorKeyboard
Windows 7 Pro 64bit LG 29inch widescreen DP LG 29inch widescreen DP Corsair K65 
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EVGA SuperNova G2 1000w Corsair C70 Corsair M65 Sound Blaster Z 
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Custom sleeved psu cables 
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post #3 of 4
I would say you just overloaded it from the power draw, and the CX series from corsair is not as good as most of the other corsair units.
Silent Dominator
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Classy Lady
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TUF Inside
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Silent Dominator
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Classy Lady
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TUF Inside
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post #4 of 4
Thread Starter 
Hmm I wish I knew I was going to be getting the 7950 when I bought the PSU, would have went for the GS 800. Well since I refuse to buy another PSU I guess I may buy a much bigger case that I can run 2 PSU's on. I can throw my old cx600 in and hook the 7950 to that. That said, is there a program that can monitor my PSU's temp? In case it just hit its thermal limit and shut off (the fan faces a carpet floor)
The Sleeper
(10 items)
 
 
Sony Xperia Z3
(7 items)
 
CPUMotherboardGraphicsGraphics
AMD FX 8320  Asus Sabertooth 990FX R2.0 MSI Radeon 7950 MSI Radeon 7950 
RAMHard DriveCoolingOS
8GB Crucial Ballistix Sport 1600mhz Samsung 470 SSD Corsair H80i Windows 7 64 Bit Home Premium 
PowerCase
Corsair HX850 Coolermaster HAF 932 
CPUMotherboardGraphicsRAM
Intel SU7300 Core2Duo 1.6 Ghz Alienware OEM Nvidia 335m 8 GB PNY memory 
Hard DriveOSMonitor
Samsing 840 SSD Windows 7 Home Premium 64-Bit Generic PNP monitor @ 75hz 
CPUGraphicsRAMHard Drive
Snapdragon 801 @ 2.5 Ghz Adreno 330 3 GB 32 GB  
CoolingOSMonitor
Blow on it Android 4.4.4 1920x1080 LCD 
  hide details  
Reply
The Sleeper
(10 items)
 
 
Sony Xperia Z3
(7 items)
 
CPUMotherboardGraphicsGraphics
AMD FX 8320  Asus Sabertooth 990FX R2.0 MSI Radeon 7950 MSI Radeon 7950 
RAMHard DriveCoolingOS
8GB Crucial Ballistix Sport 1600mhz Samsung 470 SSD Corsair H80i Windows 7 64 Bit Home Premium 
PowerCase
Corsair HX850 Coolermaster HAF 932 
CPUMotherboardGraphicsRAM
Intel SU7300 Core2Duo 1.6 Ghz Alienware OEM Nvidia 335m 8 GB PNY memory 
Hard DriveOSMonitor
Samsing 840 SSD Windows 7 Home Premium 64-Bit Generic PNP monitor @ 75hz 
CPUGraphicsRAMHard Drive
Snapdragon 801 @ 2.5 Ghz Adreno 330 3 GB 32 GB  
CoolingOSMonitor
Blow on it Android 4.4.4 1920x1080 LCD 
  hide details  
Reply
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