MSI Mobo won't start. Any way to fix it?

Vandemar

Reputable
Jun 5, 2014
1
0
4,510
Approx two weeks ago I was using my computer as I usually would when it suddenly shutdown on me. I'm not positive but I've a pretty good feeling that it overheated. I think this caused my thermal paste to melt and penetrate the cpu which caused a short. This is all speculative though. When trying to start it back up the few lights on the motherboard blink and then nothing. If I press the power again absolutely nothing happens. If I hard disconnect the power and plug it back in and hit the power button... the blink thing happens again.

I have since tried every stick of ram I own in every slot configuration, reset the bios, reset cmos, tried different cases, breadbox'd everything, added and removed every component in every conceivable order, swapped out multiple PSU's and tried them in other computers, gone through the TomsHardware check lists, combed the forums, etc etc etc etc... The only thing remotely succesful is if I unplug the 8 pin CPU power. The computer will fire up (after perssing the power multiple times). I've checked the cpu. All pins are accounted for and straight. I've since cleaned the whole thing of any residule thermal paste and whatnots.

With everything I've tried my only conclusion is that the 8pin cpu power connector on the mobo is somehow damaged (I've examined it and can't actually see any damage). Any help would be appricieated, although a new computer is looking like the only answer. Which.. well.. I have zero monies .. soo yeah.

Motherboard: MSI 890FXA-GD70
CPU: AMD FX 8-Core Black Edition
PSU: (Original, I've tried multiple rememebr) CoolerMaster GX-750
 

Dark Lord of Tech

Retired Moderator
That power supply is very poor , is probably your issue.

Tier 4 - Not Recommend for stressful situations. May not be able to put out full rated power above room temperature, and may slightly fail to meet ATX specs.

Aerocool
Asus Atlas
BFG 1000 watt
Cooler Master eXtreme (only use 75% of labeled wattage)
Cooler Master GX (except 450w) :(
E-Power
Futurepower
Hale82n 650w
Hiper Type-M
HIPRO
Masscool
MGE XG
Mushkin HP
NorthQ 4775-500S/BU
OCZ Modstream (if manufactured before December 2007)
OCZ GameXStream <1000 watt (if manufactured before December 2007)
OCZ StealthXStream (if manufactured before December 2007)
OCZ GameXStream 1010 watt (essentially a 850watt power supply)
Scythe Kamariki
Sigma Shark
Sintek
TTGI/Superflower
Ultra Xfinity
Ultra X2 <less than 700 watt
Ultra XVS
Xion Real Power PowerReal