Member Avatar for patrickahla

:sad: All I have is a green light beside my power button.It is a windows 2000 Pro.The fans don't run,1 fan runs for maby 2 seconds.Floopy doesn't run,nor the cd rom,they have no power.
The hard disk is ok,I tried it in another computor.:) Could some one please help me.There has been no power surges,are any lighting storms.
All I know is it worked fine one day,and the next day nothing.


Going crazy in Tx.:confused:
:) Patric

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Dani AI

Generated

The pattern reported by — only the standby LED lit and fans spin for a second then stop — most often means the power supply is failing or the PSU is detecting a fault on the motherboard and shutting down. 's "bad PSU" call is the most common and sensible starting point, but a few simple checks help confirm the cause before buying parts.

A safe, minimal diagnostic sequence:

  • Power down and unplug mains. Ground oneself and inspect the board for bulging/leaking capacitors, burn marks, or loose wires.
  • Confirm the wall outlet, PSU mains switch, and power cable are OK.
  • Reseat the main ATX connector and the 4-pin/8-pin CPU 12V connector. Check front-panel power switch wiring.
  • Use a proper PSU tester or a known-good spare PSU. The paperclip test only proves a PSU will spin without load and is less informative.
  • Do a minimal-boot: motherboard + CPU + cooler + one stick of RAM + PSU (and video if required). Simulate the power switch across the two power-header pins if needed (standard diagnostic; requires care). If it stays on, reconnect drives/cards one at a time to find the faulty device.
  • If the system still dies after one second on a minimal setup, swap in a known-good PSU. That swap is the quickest definitive test.

Fans that start then stop commonly indicate the PSU is going into protection (short/overcurrent) or failing to hold the main rails. If any component shows physical damage or if internal work is unfamiliar, professional service is recommended.

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Member Avatar for 'Stein

Moved to correct forum. :)

Member Avatar for John A

Sounds like your power supply is bad. Get a new one.

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