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PSU no longer holding GPU OC

post #1 of 4
Thread Starter 
Hi.
Recently I've been getting random reboots during heavy GPU load. So i decided to recheck my GPU OC in OCCT, as i did about a year ago. To my surprise system is no longer stable; instant reboot in GPU- or PSU test in OCCT.

My 660ti was volt modded (1.212V), so i dropped the overclock back to stock - OCCT stable.
As soon as i add +60mV above stock voltage - instant reboot in OCCT. This puny overclock is nothing compared to 1.2V mod which i ran stable for about 2 years.

I already measured 12V rail under idle and full GPU + CPU load and its stable around 12.2V
Furthermore, my PSU has 1 40A rail, which is more than enough for my setup:

4770k
660 ti PE
Seasonic M12II Evo 520W

What else can i do to test my PSU?
post #2 of 4
You can test your PSU with a digtal multi meter, forget about software its useless for reading voltages and therefore a waste of time.
Seravee
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Seravee
(27 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core I7 6850K Gigabyte X99 Ultra Gaming EVGA GTX 1080 FTW2 Kingston HyperX DDR4 Savage 3000 MHz 
Hard DriveHard DriveHard DriveHard Drive
Samsung 840 Evo WD Green WD40EZRX  WD Green WD60EZRX  WD Red WD80EFZX 8TB  
Hard DriveOptical DriveCoolingCooling
Seagate Ironwolf Pro 10 TB LG CH12NS30 x5 Noctua NF-A14 FLX Noctua NH-D15S 
OSMonitorMonitorKeyboard
Windows 7 64 Bit Asus PG279Q LG 49UH750V 4K LED TV Corsair Gaming Strafe RGB 
PowerCaseMouseMouse Pad
EVGA SuperNova G2 750 watt Phanteks Enthoo Luxe Roccat Kone XTD Laser Roccat Sense Metor 
AudioAudioAudioAudio
Sennheiser HD 598 Onkyo TX NR646  Harman Kardon HKTS 60 Dali Opticon Vokal 
AudioOtherOther
x2 Dali Opticon 2 CableMod E series PSU cable set CableMod LED Strips 
  hide details  
Reply
post #3 of 4
Thread Starter 
Quote:
Originally Posted by shilka View Post

You can test your PSU with a digtal multi meter, forget about software its useless for reading voltages and therefore a waste of time.

I already did that through 4pin molex while running the system. Variation between idle and full load is real low, about 0.05V.

Do i also need to measure each 24pin voltage?
post #4 of 4
I would put my money on the card being the problem personally. Any way you can borrow one at all to check or do an advanced RMA ?
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