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Troubleshooting some junk parts

post #1 of 4
Thread Starter 
So I've got some extra hardware lying around, and I decided to see if I could make a media server out of them. It has the basics in it. Mobo, CPU, RAM, PSU, GPU, and a HDD. I can install any OS just fine, and I can use it as I would with any other computer. However, there's an issue where the slightest motion, even random vibration, can cause the system to completely shut off. My suspicion? A short circuit.

Currently, I've tried booting with nothing but the PSU connected to the mobo, with the CPU and determined that the mobo is the source of this potential short circuit. Further supporting this is the fact that most attempts at plugging anything in to the IO section will result in the same outcome. USB cables, ethernet, whatever. The ports where I'm connecting everything to are right next to each other, so I'm thinking that these ports are the source of the short circuit.

I've also tried powering the board up completely unmounted. No mounting plate, not even standoffs. Just the bare back of the board resting on cardboard. Still powers off.

So now the question is, assuming this is a short circuit, and assuming I have correctly identified the source, is there anything I can do about it? Seems like a waste to throw out an otherwise functioning set of hardware.
post #2 of 4
Bake it to re-flow the solder. ...and hope it isn't a broken trace.
My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
FX6300 Black M5A99X EVO R2.0 Nvidia GTS450 Team Vulcan PC3 12800 
Hard DriveOptical DriveCoolingOS
Samsung 840 PRO Asus DRW-1608P (x2) Custom Water Cooling Win7 (Ult), Win 8.1 & Win Server 2012 R2 
MonitorKeyboardPowerCase
2 X Samsung 915N Ducky Shine III, Blue Cherry/Blue LEDs PCP&C 1kw Lian Li PC-71 (W/Window) 
MouseAudio
Logiteck G400s none 
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My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
FX6300 Black M5A99X EVO R2.0 Nvidia GTS450 Team Vulcan PC3 12800 
Hard DriveOptical DriveCoolingOS
Samsung 840 PRO Asus DRW-1608P (x2) Custom Water Cooling Win7 (Ult), Win 8.1 & Win Server 2012 R2 
MonitorKeyboardPowerCase
2 X Samsung 915N Ducky Shine III, Blue Cherry/Blue LEDs PCP&C 1kw Lian Li PC-71 (W/Window) 
MouseAudio
Logiteck G400s none 
  hide details  
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post #3 of 4
Thread Starter 
Hmm. Baking didn't work. Tried using a heat gun as well at the suspected area. Nothing. I saw a capacitor that looked loose, so I resoldered it. No change.

I'm going to try something incredibly stupid, but what the hell, it's junk. I'm going to solder some solder onto the mobo power cable to short the PSU into a permanent on state and monitor it. I've got some junk USB flash drives I could use to see if any USB ports will make the drive pop.
post #4 of 4
Thread Starter 
Surprisingly, nothing bad has happened over the 11 hours since I've done this. Peripherals are undamaged, there are no unusual smells, and nothing feels even warm. Been running the hardware at full load since. Did I just solve a short circuit with another short circuit here?
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