24pin PSU with 20 pin mobo - Techist - Tech Forum

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Old 09-11-2006, 06:31 PM   #1 (permalink)
Master Techie
Join Date: Jun 2005
Posts: 2,134
Default 24pin PSU with 20 pin mobo

will this work? i did this with an old mac and i seem to remember it working fine, just with 4 pins hanging off the end of the mobo connector. i just want to check if it would damage anything.

the only thing is that the 24pin connector does not have the white wire that is uaually in pin 18?? and i believe it is -5VDC. is this needed? would it run OK?

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Old 09-11-2006, 07:13 PM   #2 (permalink)
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Join Date: Jul 2004
Location: Manchester, UK
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surely it will work without hassle,, is the 24-pin stack is seperated, then keep the extra pins tiedup with the cable tie.

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Old 09-11-2006, 09:16 PM   #3 (permalink)
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Join Date: Aug 2006
Posts: 47

it will run fine... they made it backwards compatible that way you can power both older and newer boards with the same psu... i believe that most new P4 and Pentium D boards use the 24-pin now but the extra 4 pins either hang off or you can detach them and tie them with the rest of your cable.
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