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Posts when breadboarded, but not inside case

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Last response: in Systems
July 15, 2010 2:54:28 AM

I've been trying to find the cause of a case short for two weeks now. When I first assembled my machine, the fans would just "burst" for a second then not start. The rig posted when breadboarded, however. I reassembled the 'guts' in the case, and the short problem reappeared.
During this second assembly, I double checked that no unnecessary mobo standoffs were used, and examined all wire connections thoroughly.
Given that I know the nature of the problem, I would say I need suggestions on how to identify the location of the short. Any help would be much appreciated. To anyone familiar with the Antec 900, I noticed that it included little red washers, but could find no information in the manual on their function. I placed them between the brass standoffs and mobo, thinking they must be insulating washers. Can anyone tell me what they're for? Thanks

Antec 900 case
Corsair 750W PSU
Asus P7P55D mobo
Intel Core i5 750
Corsair 2x2GB DDR3 RAM
EVGA GTX 260 video card

More about : posts breadboarded inside case

a b B Homebuilt system
July 17, 2010 8:41:32 PM

For modern components you don't use the paper washers. I've never used them. According to this source, the washers are needed for motherboard holes that are non-metallic.

Install your motherboard without the washers and see if it fires up.