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Help, Power supply trouble

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#1 PcCaseInvAder


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Posted 25 September 2005 - 08:43 PM

Hey all, I have a Compaq presario, P4, 1.7 GHZ proc. 1 GB ram. I decided to buy a midsize ATX case and mod it, so that i can put the compaq parts out the old case and in a new case...well, i was able to drill a few holes for the heatsink to stay in place, and all is fine...but the power supply is too small....i ordered a 20 pin 480 watt power supply, and i also got a 20-24 pin adapter, and it fits perfectly....but it wont work....i tried all that i know...i tested the power supply, but its working fine, and i tested the adapter, and its also fine....what can it be? PLEASE Its important....thanks

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#2 rigel



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Posted 27 September 2005 - 03:35 PM

Hi PcCaseInvAder,

Compaq computers contain proprietary parts and may not be compatable with the power supply you purchased. Are you certain that the new power supply and adapter have the same pinout (the same voltages going to the same pins) as the old power supply?

If you connect the old power supply back to the system board, does the computer run?

Compaq computers can be a bear to get replacement/aftermarket parts for.

Good luck,


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