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Old 05-06-08, 05:54 PM   #1 (permalink)
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Default Computer -> knackered

One of our pcs the other just refused to start up. Doesn't even run bios startup. There is no activity in this machine at all.

When the power cable is connected the mother board power light is on. So I thought a broken power switch. But when I hit the power switch I can see the fan twitch...just a little bit.

I'm stumped. Any suggestions as to diagnosing and fixing?

Cheers
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Old 05-06-08, 06:12 PM   #2 (permalink)
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Default Re: Computer -> knackered

If it is old, the bios battery may be kaput. Worth trying a new one for the price.
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Old 05-06-08, 06:34 PM   #3 (permalink)
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Default Re: Computer -> knackered

Usually the problem is the PSU, as you're not getting anything at boot up. If you have access to another PC, try taking the Power Supply Unit from that and connecting it to your other PC.
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Old 05-06-08, 07:01 PM   #4 (permalink)
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Default Re: Computer -> knackered

There is a possibility it is your power supply as i believe these days they have seperate supplies to various components
usually if you can't post it is your power supply or bios, you could try a battery change as suggested by Jimdefruit or change the jumper over to do a CMOS reset or take the battery out for a couple of minutes (with all power off)
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Old 05-06-08, 09:07 PM   #5 (permalink)
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Default Re: Computer -> knackered

Quote:
Originally Posted by hessodreamy View Post
One of our pcs the other just refused to start up. Doesn't even run bios startup. There is no activity in this machine at all.

When the power cable is connected the mother board power light is on. So I thought a broken power switch. But when I hit the power switch I can see the fan twitch...just a little bit.

I'm stumped. Any suggestions as to diagnosing and fixing?

Cheers
Check next thread down "useful site"
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Old 06-06-08, 09:00 AM   #6 (permalink)
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Default Re: Computer -> knackered

Have you tried disconecting from the mains and then reconnecting. Sometimes they will 'trip' for safety reasons in response to something mains derived and need to be powercycled to reset.
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