Power switch

[cheezybuff]

I am getting continuity through the power supply. The power supply is hooked up correctly. I am still having no luck in getting the computer to turn on. How can one check the power switch? Anyone have any idea?

[kriptokool]

Is it AT or ATX ?? mm once I had that prob and it was so stupid.. probably this won't solve your prob but check behind the case to see it is set to 110V and not 220V. Does the Bios detect voltaje..if it doesn't may want to check the jumpers..


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Of all the things I ever lost I miss my mind the most

[cheezybuff]

it is an ATX power supply. The voltage is set right. I already checked. What else do you suggest?

[Paleo Pete]

Do you have a main power switch on the back of the case that could be turned off?

Does anything at all happen when you turn on the power? Open the case and watch the CPU fan, see if it jerks when you turn on the power. See if any LED's blink...

Have you checked the power cable to be sure it's getting power to the power supply?

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[Daniel J Matthews]

have you got a multi meter or vom and have you got the knowledege to enter the depths of your pc case if so i have a solotion

find the power switch wires,unplug,and test it for continuity by connecting it and pressing the switch or short the 2 power switch pins out and see if it boots so if it works its the problem of the switch

[scada]

I once had this same problem. Check how you have pluged in the power connectors to your HD,FDD,CD. The connectors are wired in serial and (in my case) if you don't plug in your devices in serial the box won't boot.

Examble: I have one power "cable" with 3 connectors on the end. If I used the 2nd and 3rd connectors, but leave the 1st unused the system won't power up. When I changed the order so that the 1st and 2nd connectors where used but not the 3rd. The system powered up.

You may have the same problem. Worth a look.


Good luck http://www.PCGuide.com/ubb/smile.gif

[Paleo Pete]

Should have thought of this earlier, have you checked for a ground problem?

Try putting together only the motherboard, CPU, memory, video card and keyboard on a table, with everything out of the case. If it powers up get some cardboard washers from a computer shop, it's a ground problem. Something on the motherboard is touching the chassis of the case, creating a direct short.

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If you had everything...Where would you put it?

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[cheezybuff]

i have a multi meter. so now what... What is the easiest way to check the power switch or jump it?

The power supply does not have a switch on the back.

What should the order be for the power to HD, FDD & CDROM?

There is no movement of the fan or anything when i press the power switch.

[cheezybuff]

paleo pete

i tried taking everything out of the case. still nothing.

i am narrowing it to a blown motherboard or bad power switch.

i am working on an old HP8160 computer. if that helps any...

[Paleo Pete]

It's beginning to sound like a bad motherboard. Now that we know it's an older computer, I'd say that is more likely. Only way I know of to prove it is to plug another motherboard into the power supply and try to power it up with CPU, memory, video card, RAM and keyboard installed. If it works, the old motherboard is bad.

------------------
If you had everything...Where would you put it?

Computer Information Links (http://www.geocities.com/paleopete/)