PC Restarting when Bumped

[Silver143]

i recently upgraded my PC and now when my tower is bumped it restarts and you have to shut it off and then turn it back on. the motherboard is a MSI 770-C45 AM3 AMD 770 ATX AMD Motherboard - Retail the case is an older case. the board has grey matting around the screw holes.
the restarting is getting really annoying can someone please give me some ideas to try

[dneilson]

Don't bump the tower?

[photolady]

Did you use standoffs to take the motherboard up from the bottom of the case? And is the motherboard screwed down. It could be loose and hitting the tower shifts the mobo and causes it to short.

[jdc2000]

The two most likely causes are:

1. A loose connection or a short that disconnects or connects when the case is moved. Check the power switch, power cord, loose power cables, paper clips or other conducting items loose in the case, etc.

2. Static electricity. Id you build up a charge and then just barely touch the case, does the computer crash or reboot or power off? if so, you need some sort of static protection.

[Silver143]

it trys to restart but it wont post or move any further.
you have to turn off the pc and then turn it back on 15-20 seconds later.

the stand offs used are ones that are built in to the tower.
i thought about putting nylon washers between the mobo and the tower.

[SuperSparks]

You don't need nylon washers, the mobo screw holes are connected to ground anyway. I'm with jdc2000, I think you have loose connection in there somewhere, most likely.