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Faulty PSU or Dead Mobo?

post #1 of 12
Thread Starter 
Not my computer, but someone else's wont power on at all. I have a PSU tester and everything checks out ok, all the lights on the tester light up and the fan on the PSU spins. However once you plug it into the motherboard it doesn't power on anything at all. The LED's "flicker" a little and not even the onboard power buttons seem to work. I don't have a spare PSU to test with the mobo. Any ideas? its a Thermaltake 750w if that helps
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My One and Only
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CPUMotherboardGraphicsRAM
i5 760 @ 4.1GHz MSI P55-CD53 EVGA GTX 570 SC 8 GB Mushkin Blackline DDR3 PC1333 
Hard DriveOptical DriveOSMonitor
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post #2 of 12
Possibly it could be the 8 pin or 24 pin connectors .


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post #3 of 12
seems like a dead board or dead cpu.
    
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post #4 of 12
Does the cpu fan spin up when you press the power button? Does it beep (you need a speaker hooked up to motherboard)?
    
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post #5 of 12
Thread Starter 
Quote:
Originally Posted by robwadeson View Post
Does the cpu fan spin up when you press the power button? Does it beep (you need a speaker hooked up to motherboard)?
When I mean there is no power, there is no power what so ever. Nothing spins, nothing lights up lol besides the onboard power and reset buttons which flicker as if the current was unstable.
My One and Only
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5 760 @ 4.1GHz MSI P55-CD53 EVGA GTX 570 SC 8 GB Mushkin Blackline DDR3 PC1333 
Hard DriveOptical DriveOSMonitor
500GB WD Blue Lite-On DVD Burner Windows 7 Ultimate 64bit AOC 23" LED LCD 1920 x 1080 
PowerCaseMouse
Silverstone 1000W Modular CM HAF 922 Razer Deathadder 
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My One and Only
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CPUMotherboardGraphicsRAM
i5 760 @ 4.1GHz MSI P55-CD53 EVGA GTX 570 SC 8 GB Mushkin Blackline DDR3 PC1333 
Hard DriveOptical DriveOSMonitor
500GB WD Blue Lite-On DVD Burner Windows 7 Ultimate 64bit AOC 23" LED LCD 1920 x 1080 
PowerCaseMouse
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post #6 of 12
Try removing the graphics card and boot it up, use the onboard video
    
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i5-2410M @ 2.9ghz Nvidia GT 540M 1GB DDR3 4GB DDR3 1333mhz 500GB 5400rpm 
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post #7 of 12
You probably have there a dead motherboard..

Try to power it up without 8pin ATX power cable,if it does power up (spin the fans) then you have damaged CPU power circutry..


CHEERS..
     
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Hard DriveOptical DriveOSMonitor
Hitachi Deskstar 160GB (7200,8MB) LG DVD Win 7 Ultimate 64bit build 7601 LG 19" 
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post #8 of 12
Thread Starter 
Quote:
Originally Posted by KingT View Post
You probably have there a dead motherboard..

Try to power it up without 8pin ATX power cable,if it does power up (spin the fans) then you have damaged CPU power circutry..


CHEERS..
Tried that already, it didn't help. Thanks for the suggestion though any help is appreciated.
My One and Only
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5 760 @ 4.1GHz MSI P55-CD53 EVGA GTX 570 SC 8 GB Mushkin Blackline DDR3 PC1333 
Hard DriveOptical DriveOSMonitor
500GB WD Blue Lite-On DVD Burner Windows 7 Ultimate 64bit AOC 23" LED LCD 1920 x 1080 
PowerCaseMouse
Silverstone 1000W Modular CM HAF 922 Razer Deathadder 
  hide details  
Reply
My One and Only
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5 760 @ 4.1GHz MSI P55-CD53 EVGA GTX 570 SC 8 GB Mushkin Blackline DDR3 PC1333 
Hard DriveOptical DriveOSMonitor
500GB WD Blue Lite-On DVD Burner Windows 7 Ultimate 64bit AOC 23" LED LCD 1920 x 1080 
PowerCaseMouse
Silverstone 1000W Modular CM HAF 922 Razer Deathadder 
  hide details  
Reply
post #9 of 12
Quote:
Originally Posted by robwadeson View Post
seems like a dead board or dead cpu.
i agree
post #10 of 12
Quote:
Originally Posted by Wasd.alltheway View Post
Possibly it could be the 8 pin or 24 pin connectors .


Sent from my iPod touch 4g using Tapatalk
so im doing this on my nintendo Wii (comp is downloading game) slow internet download speed
    
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