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CoolerMaster GX750 failed?

post #1 of 9
Thread Starter 
My friend's PC won't turn on, even though his motherboard's LED is on so i would assume the PC is getting power. he said that after a while the LED blinked on and off a few times. he also had a ongoing problem with his motherboard not reading all 6GB of his RAM and only dual channel(X58 platform though). ASUS refused to honor their Advanced RMA for him, which is quite odd because they were great in replacing my Crosshair IV. anyway, here are his specs:

Intel i7 950
6GB PNY XLR8 1600 8-8-8-24
ASUS Sabertooth X58
EVGA GTX 470 SC
CM GX750

ok so, i warned him against certain things...like CM power supplies and PNY RAM. the RAM went bad and he had to RMA it after like 2 days...he got some corsair but the timings were looser at 9-9-9-24 and he kind of obsessed over that BUT they ******* worked and he had TRIPLE CHANNEL like he's supposed to. he sells the corsair on the side once the PNY came in the mail...whatever. he goes cheap on cases and PSU's. he had some CM case that was too small/bad for cables and i end up selling him my brand new azza hurrican for 50 bucks(we're life long friends).

after just deciding to live with the 4GB of available RAM now his computer won't turn on. i suspect the PSU is to blame, any thoughts?
post #2 of 9
Not really sure, but the best way to test it out is to test his system with a different PSU, RAM, and etc. And is the problem that it won't boot? Well, if i read your post right I'm going to guess the motherboard is the problem.
Kpnamja
(14 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500k ASUS P8P67 PRO Saphire R9 290 Tri-X OC G.Skill 8GB 1866Mhz 
Hard DriveHard DriveOptical DriveCooling
Seagate 500GB & 2TB Samsung 830 LG Blu-ray Thermaltake Frio 
OSMonitorKeyboardPower
Windows 7 64-bit Asus 23.6" & Dell 27" Ducky-9008 Brown Corsair HX750 
CaseAudio
NZXT Phantom Black/Orange RX-900 
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Kpnamja
(14 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500k ASUS P8P67 PRO Saphire R9 290 Tri-X OC G.Skill 8GB 1866Mhz 
Hard DriveHard DriveOptical DriveCooling
Seagate 500GB & 2TB Samsung 830 LG Blu-ray Thermaltake Frio 
OSMonitorKeyboardPower
Windows 7 64-bit Asus 23.6" & Dell 27" Ducky-9008 Brown Corsair HX750 
CaseAudio
NZXT Phantom Black/Orange RX-900 
  hide details  
Reply
post #3 of 9
Thread Starter 
he's going to being it over tomorrow and i'll try my RAM and PSU. it could be the PSU or the board. no case fans or anything are getting power, so i'm led to believe it's the power supply.
post #4 of 9
Hard to say. The GX750 is a piece of crap 450W though.
post #5 of 9
Sounds like the motherboard isn't posting- Check for bad cpu-pins on the MB and the bottom of the processor. My sig MB killed my CPU.
post #6 of 9
Thread Starter 
ok, will do.
post #7 of 9
First thing would be to try your PSU. I would try one stick at a time of his RAM before sticking your RAM in there, though.
    
CPUMotherboardGraphicsRAM
i5 2500K MSI P67A-G43 MSI GTX 460 Cyclone Ripjaws X 
Hard DriveHard DriveOptical DriveOS
Vertex 2 WD Green ASUS Windows 7 
PowerCase
Antec TruePower New 750 HAF 922 
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Reply
    
CPUMotherboardGraphicsRAM
i5 2500K MSI P67A-G43 MSI GTX 460 Cyclone Ripjaws X 
Hard DriveHard DriveOptical DriveOS
Vertex 2 WD Green ASUS Windows 7 
PowerCase
Antec TruePower New 750 HAF 922 
  hide details  
Reply
post #8 of 9
Also, if you have the motherboard speaker plugged in listen for beeps and write them down to see what possible errors you could be getting.
post #9 of 9
Thread Starter 
Ok, the power supply was bad. now i'm fighting to convince him not to RMA it and just get a different PSU.
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