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Old Intel Mobo Madness

post #1 of 6
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I had every part for another computer except motherboard. My friend gave me an old intel one, and it only has a 20 pin female slot thingy for a power supply and then a 4 slot off to the left. my power supply i had was 24 pin, so i just cut off the excess pins and i plugged it in and turned the computer on but i turned it off after about 2 seconds and all of the chipsets on the motherboard were extremely hot. Did i do something wrong? Is the mobo faulty? Should I have not cut off those pins?
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post #2 of 6
Hmmmmm. This is just a poke in the dark but it might be right.

As far as I know the 24pin motherboard power supply connection will supply quite a bit of juice as its the main source of power for everything going on for the motherboard. Many motherboards have a supplementary CPU power(sometimes 4 pin, sometimes 8 pin) to provide more juice to the CPU for greater overclocking headroom. PSU's generally have a dedicated connector that goes to this 4 pin header, which in my best estimate most likely gives a different power output than the 24 pin piece.

I also can't see myself suggesting ever "cutting off" excess pins from a power supply. That just doesn't seem terribly safe. But if you know what you're doing then i'm sure it wouldn't be bad. Just saying it's not something I'd suggest.
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post #3 of 6
Quote:
Originally Posted by ThatWeasel View Post

I had every part for another computer except motherboard. My friend gave me an old intel one, and it only has a 20 pin female slot thingy for a power supply and then a 4 slot off to the left. my power supply i had was 24 pin, so i just cut off the excess pins and i plugged it in and turned the computer on but i turned it off after about 2 seconds and all of the chipsets on the motherboard were extremely hot. Did i do something wrong? Is the mobo faulty? Should I have not cut off those pins?

What MB? What CPU? What PSU? You don't need to cut off 24-pin, pretty sure you can plug it into 20-pin with no problem. Did you plug in the 4-pin CPU power connector?
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post #4 of 6
Thread Starter 
yes i plugged the 4 pin into the cpu connector and i had to cut those pins off because there were capacitors right next to the 20 pin
Edited by ThatWeasel - 2/4/12 at 11:22pm
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post #5 of 6
Quote:
Originally Posted by ThatWeasel View Post

yes i plugged the 4 pin into the cpu connector and i had to cut those pins off because there were capacitors right next to the 20 pin

your 24pin power connector wasn't a 20+4 pin connector? Really the first 20pins are the same so no harm done, and the getting hot things is probably normal. A lot of old motherboard chipsets run pretty hot. Just make sure the mobo isnt shorting out some where.
Edited by DzillaXx - 2/4/12 at 11:28pm
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post #6 of 6
yea really all or most PSUs even my AX1200 has a 20+4 and a 4+4 pin connectors, older mobos only used 20 pin and a 4 pin, if even that.
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