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Can motherboards kill PSU's?

post #1 of 4
Thread Starter 
I'm curious as my HX750 is failing the paperclip test, tested because my computer was shutting down and unable to remain on suddenly one day last week.

I only wonder because this is my second hx750 to need replaced as the previous one was much the same. This one has lasted me since the Beginning of December though, so I'm assuming I'm just unlucky in this regard.

Is there anything else that could knock out a psu as well? Or are surge spikes all the average person really needs to worry about?
     
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x6 1055T Crosshair IV Formula Sapphire HD6850 4GB Mushkin Redline 1600 cas.6 
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CPUMotherboardGraphicsRAM
x6 1055T Crosshair IV Formula Sapphire HD6850 4GB Mushkin Redline 1600 cas.6 
Hard DriveHard DriveCoolingOS
Samsung 840 Series 120GB WD Caviar Black 750GB Prolimatech Armageddon 7 Home Premium x64 
MonitorKeyboardPowerCase
Acer G235HAbd 23'' 1080p Logitech G11 PC Power & Cooling 500w ABS Canyon 595 Full Aluminum 
MouseAudio
Logitech MX518 Syba Connectland 2.0 Speakers 
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post #2 of 4
I'd say, you must just probably been unlucky. I think its the power from the wall that could most like damage a PSU, still your PSU has got features which can correct those surge spikes before delivering it to your system.
Zero
(13 items)
 
  
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Intel i5 2500K @ 4.80GHz Asus P8P67 PRO (B3) Rev 3.0 1GB Sapphire HD5850 Xtreme 4GB Corsair Vengeance 1600MHz 
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640GB Western Digital Caviar Blue Windows 7 Professional x64 LG E2260V-PN LED Monitor Corsair HX650W Modular Power Supply Unit 
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Zero
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Intel i5 2500K @ 4.80GHz Asus P8P67 PRO (B3) Rev 3.0 1GB Sapphire HD5850 Xtreme 4GB Corsair Vengeance 1600MHz 
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640GB Western Digital Caviar Blue Windows 7 Professional x64 LG E2260V-PN LED Monitor Corsair HX650W Modular Power Supply Unit 
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Cooler Master HAF 912 Plus 
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post #3 of 4
Thread Starter 
Yeah, that's what I'm assuming. I do have surge protection of course, this has convinced me to use my UPS for my computer as well.

I guess this is better then last time however, that time it also killed my HD6850 as well, had to send two things back that time around.
     
CPUMotherboardGraphicsRAM
x6 1055T Crosshair IV Formula Sapphire HD6850 4GB Mushkin Redline 1600 cas.6 
Hard DriveHard DriveCoolingOS
Samsung 840 Series 120GB WD Caviar Black 750GB Prolimatech Armageddon 7 Home Premium x64 
MonitorKeyboardPowerCase
Acer G235HAbd 23'' 1080p Logitech G11 PC Power & Cooling 500w ABS Canyon 595 Full Aluminum 
MouseAudio
Logitech MX518 Syba Connectland 2.0 Speakers 
  hide details  
Reply
     
CPUMotherboardGraphicsRAM
x6 1055T Crosshair IV Formula Sapphire HD6850 4GB Mushkin Redline 1600 cas.6 
Hard DriveHard DriveCoolingOS
Samsung 840 Series 120GB WD Caviar Black 750GB Prolimatech Armageddon 7 Home Premium x64 
MonitorKeyboardPowerCase
Acer G235HAbd 23'' 1080p Logitech G11 PC Power & Cooling 500w ABS Canyon 595 Full Aluminum 
MouseAudio
Logitech MX518 Syba Connectland 2.0 Speakers 
  hide details  
Reply
post #4 of 4
It's possible, but usually obvious when it happens. For instance a transistor on the motherboard's VRMs fails shorted (which is usually pyrotechnic and fatal), and your single rail PSU keeps pumping out increasing amounts of current until its +12V rectifiers pop, because it doesn't have OCP. Which usually results in the motherboard catching on fire.

I've seen that a few times.


Anyway, your case, I have no idea.
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