Tuesday, August 10, 2010

Motherboard symptoms

Symptom 1: A motherboard failure is reported, but it goes away when the PC's out cover is removed. There is probably an intermittent connection or short circuit between the motherboard and chassis. This often happens during an upgrade or new assembly.
  • Check for short circuits. Examine any metal standoffs securing the motherboard, and see if any are touching metal traces on the motherboard. You may be able to eliminate such shorts by inserting a thin spacer made from a manila folder.
  • Try reinforcing the chassis. If the chassis is warping a bit, make sure that the entire chassis assembly is tight.
  • Try a new motherboard. If the chassis is not warping, there may simply be a fault somewhere in the motherboard itself. If the motherboard erboard is under warranty, replace it outright.

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