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June 11, 2007 at 10:23 pm #2265435

PC Turns on for a sec and turns off

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by geauxdux · about 15 years, 3 months ago

Retrofitting a P4 3.2mhz machine with a Core 3 Duo 6230, Intel Motherboard, 2 GB Ram, Western Digital 250 GB SATA II HD, Nvidia 7300GS video card and a couple of DVD drives.
Power Supply is a new Antec HE500.

When I turn on the machine, fans kick on for a few seconds, I hear the HD Spin, and the machines shuts down.

if I remove the memory, MB beeps like hell.
24 Pin connector is securely fastened
2×2 connector is also firmly connected.
If I unplug the heatsink fan, machine runs.

What the hell is going on?
I checked the seat of the proc. Looks good.
Heat sink is securely in place.
There are no extra brass posts under the board.

Symptoms are a weak power supply but it is a new 500 Watt Antec.

Anyone seen this before?

This conversation is currently closed to new comments.
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- June 11, 2007 at 10:23 pm #2586072
  
  Clarifications
  
  by geauxdux · about 15 years, 3 months ago
  
  In reply to PC Turns on for a sec and turns off
  
  Clarifications
- June 11, 2007 at 10:30 pm #2586068
  
  Motherboard -BIOS Chip complaint
  
  by kishoremcsa · about 15 years, 3 months ago
  
  In reply to PC Turns on for a sec and turns off
  
  Mostly like this type of cases the mother bios chip is the complaint. go to your retailer and confirm it first.
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PC Turns on for a sec and turns off

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