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Is my PSU dying?

post #1 of 3
Thread Starter 
I have been suffering totally random reboots since I changed my motherboard to a Asus P8Z77-M Pro

It happens between 3 and 10 times a day

- The power supply (5 years old Corsair VX550) suddenley stops working and the fan stops spinning, so the computer shuts down.
- A second later, the power supply restarts and the computer starts again automatically.

I have been testing both motherboard and power supply with other parts trying to find the problem and this is what I got:

Gigabyte GA-MA78GM-DS2H + Corsair VX550 -> works ok
ASUS M3A78-EM + Corsair VX550 -> works ok
ASUS P8Z77-M PRO + Tacens Radix 410W -> works ok
ASUS P8Z77-M PRO + Corsair VX450 -> works ok
ASUS P8Z77-M PRO + Corsair VX550 -> random reboots frown.gif

All testing is made using a 2500K and 5600+/6000+ cpus and using integrated graphics cards from 2500K and from the AM2+ motherboards

I don't understand why both ASUS P8Z77-M PRO and Corsair VX550 work perfectly separately but don't work together and I'm going to pull my hair out.
post #2 of 3
are you able to get your hands on a PSU tester? I think Thermaltake make a good one.
How are you testing the equipment? On a bench or in a case? It could be a grounding issue maybe, it's rare but it happens.
STORMTIDE
(23 items)
 
   
CPUMotherboardGraphicsRAM
Intel i5 3570k 4.5GHz @1.272v MSI Z77A-GD55 EVGA GTX780Ti ACX 8GB Corsair Vengance LP 
Hard DriveHard DriveHard DriveCooling
64GB Crucial M4 x2 RAID0 500GB Seagate Barracuda 2TB Samsung Spinpoint EK Supremacy Plexi CSQ CPU Block 
CoolingCoolingCoolingCooling
EK FC-670GTX Plexi CSQ GPU Block x2 EK XT240 EK X3 250 Res Laing D5 Vario 
CoolingOSMonitorKeyboard
EK D5 Pump Top Plexi Windows 7 Ultimate 64bit 24" BenQ XL2420T CM Quickfire TK MX Browns 
PowerCaseMouseMouse Pad
Seasonic G Series 600W CM storm trooper Saitek R.A.T 5 Razer Goliathus Control Edition 
AudioAudioOther
Beyerdynamic DT990 Pro Schiit Modi/Magni Razer Naga Molten Edition 
CPUGraphicsRAMHard Drive
i5 3317U 640M 4GB DDR3 128gb crucial m4 
OSMouse
Windows 8 Pro 64bit Razer Naga Molten 
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STORMTIDE
(23 items)
 
   
CPUMotherboardGraphicsRAM
Intel i5 3570k 4.5GHz @1.272v MSI Z77A-GD55 EVGA GTX780Ti ACX 8GB Corsair Vengance LP 
Hard DriveHard DriveHard DriveCooling
64GB Crucial M4 x2 RAID0 500GB Seagate Barracuda 2TB Samsung Spinpoint EK Supremacy Plexi CSQ CPU Block 
CoolingCoolingCoolingCooling
EK FC-670GTX Plexi CSQ GPU Block x2 EK XT240 EK X3 250 Res Laing D5 Vario 
CoolingOSMonitorKeyboard
EK D5 Pump Top Plexi Windows 7 Ultimate 64bit 24" BenQ XL2420T CM Quickfire TK MX Browns 
PowerCaseMouseMouse Pad
Seasonic G Series 600W CM storm trooper Saitek R.A.T 5 Razer Goliathus Control Edition 
AudioAudioOther
Beyerdynamic DT990 Pro Schiit Modi/Magni Razer Naga Molten Edition 
CPUGraphicsRAMHard Drive
i5 3317U 640M 4GB DDR3 128gb crucial m4 
OSMouse
Windows 8 Pro 64bit Razer Naga Molten 
  hide details  
Reply
post #3 of 3
Thread Starter 
Thanks for the quick answer.

I don't have a PSU tester, but I have a multimeter if it is needed.

I have been doing the testing in a SilverStone TJ08-E case and directly on a wood table with same result.

I think the wall plug is grounded. I tried connecting the PSU through a SAI (Riello iDialog Plus) and directly to the wall plug, with same result (reboots always happen).
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