I've built a few PCs myself, and have inspired my cousin to do the same. Unfortunately, I am no longer in the same state with him and can't diagnose these issues in person. Also, he is not financially able to spend money to experiment with new components or RMA things back and forth to NewEgg.
His computer will not turn on consistently. The likely hood of a boot up increases as more components (hard drive, disk drive) are removed from the motherboard, it seems. However, this is also not a consistent truth.
This is his second mobo; the first was RMA'd due to a similar issue. No other components (PSU, CPU, GPU case) have changed.
Also of note is
both mobos have sparked once while inside this [used] case. No components were fried or anything like that. Just a spark.
Theories:
1) The used case came with no screws, so we have used a smorgasbord of around-the-house screws to seat the mobo into the case. Perhaps a metal part of the mobo is touching the case and causing an issue, or he is not using enough screws?
2) PSU may be faulty. However, this was tested on another computer and
it consistently worked fine, so ...
3) The small cable which runs from the power button (of the case) to the mobo is faulty. However, the wiring looks solid and well connected upon inspection.
Any ideas? My bet is on the used case, although I'm not sure how or why.
Components, linked for reference:
PSU:
OCZ Fatal1ty OCZ550FTY 550W ATX12V / EPS12V SLI
CPU:
Intel Core 2 Quad Q8300 Yorkfield 2.5GHz LGA 775 95W
MOBO:
GIGABYTE GA-EP45-UD3R LGA 775 Intel P45 ATX Intel
Posts
used case sounds shady, and I would prefer to blame that.