Question about System Power Supplies

2 Answers

Computer was working earlier, turned off unit - later tried to turn it on but it won't work

- noticed green indicator light on power supply was flashing.
- opened case of pc and noticed a green indicator light flashing on the motherboard.
- there was no indication of an electrical shortage (visible or smell)
- still... pc will not turn on.

Need your help. Thanks in advance.

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  • infoshibui Sep 21, 2008

    I had the exact same problem. When restarting the computer it would not power up. Noticed power supply lite blinking and mother board light blinking but no other evidence of power. Left unplugged for several hours no change.

  • Anonymous Nov 17, 2008

    i had a power outage and when the power came back on my computer wouldn't, I have a sony computer that uses an ATX-300-12EB3 power supply and on the back of it is a green light that rapidly flashed but nothing else happens. Has anyone figured out what the problem ended up being?

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First if u have an ups disconnect the system from that and test the system directly from mains,

If not u disconnect the powerswitch  from the m/b and direct short the pins in m/b.

2. even it is not working u check the system with another SMPS

Was this helpful to u pl give the rating

Thanks

Posted on Feb 22, 2008

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You can try replacing power supply first since its the easiest one and you can return it if its not that.

also you can try removing the power cable and cmos battery for 30 minutes (sometimes this worked on some computers)

Posted on Feb 22, 2008

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