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Thread: Use Standard ATX Power Supply with Compaq Mobo |
    
New member Username: Marimol
Post Number: 1
Registered: Jul-05
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| Posted on Saturday, July 23, 2005 - 08:32 pm: |
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Hello All. I was searching on how to use a standard ATX power supply with a Compaq Motherboard because my Compaq's Power Supply just died; and I found this forum. I found some information in the following post:
http://forum.ecoustics.com/bbs/messages/8829/120374.html
But it is still unclear to me on how to do it. I would like to use the 420W power supply that I have instead of the old 235W that my Compaq 5430US has. The atx power supply has a 20 pin conncetor and the Motherboard needs a 24 pin, so I bought an adapter but it doesn't work. Still no power gets to the motherboard. I know I have to re-arrange some cables from the power supply, but I don't know which ones.
Can anyone please give me some instructions on how to make the new power supply work with the Motherboard? I really don't have money to buy a new motherboard and throw this one out the window; or get a new power supply from compaq, which is $95
Thank you very much. |
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New member Username: Marimol
Post Number: 2
Registered: Jul-05
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| Posted on Saturday, July 23, 2005 - 11:25 pm: |
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I found the pinout for Compaq's 24 pin connector. Maybe someone in here will figure out how to mod an atx power supply to make it work with a Compaq motherboard.
ftp://ftp.compaq.com/pub/supportinformation/techpubs/maintenance_guides/123385-0 03.pdf
It's in page 61.
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| Posted on Sunday, August 21, 2005 - 12:40 am: |
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Here is complete information for converter/adapter generic atx 20 pin
for Compaq Deskpro EN Series...
Note: Still some bugs, but work fine.
Conversion Avanzada:
Con esto se hace casi compatible una fuente generica 20 pin atx con una fuente
propietaria compaq PIII, se corta el pin 8 PWROK, (cable gris) y se ponen en
corto el pin 2 (3.3V cable naranja) con los pines 21, 22,(estos pines son los
del lado derecho del conector y quedarian sin conectar) pero haciendo el corto
con el pin 1 o 2 (3.3V) con esto se detecta la RED, y el sensor (temperatura).
En Bios seleccionar "After Power Loss" Always ON.
Bugs:
1.-Se tiene que apagar desde el switch de la fuente porque windows no la
apaga automaticamente.
Conversion Basica:
Cortar el pin 8 PWROK (cable gris). dejar 4 pines restantes sin conectar.
En Bios seleccionar "After Power Loss" Always ON.
Bugs:
1.- Se tiene que apagar desde el switch de la fuente porque windows no la
apaga automaticamente.
2.- No se detecta la tarjeta de Red, Ni el Sensor de temperatura.
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New member Username: Maciejg7
Post Number: 1
Registered: Oct-05
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| Posted on Friday, October 07, 2005 - 06:21 pm: |
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Hi, I use Compaq Presario 6000
I live in Europe, so voltage is 230V
But switch 230/115 was very interesting for my 2,5 years old son, so my Compaq now is dead  with some smoke
I tried to install no name power supply (I knew i have to cut some bigger hole in compaq case), system started but coolers did not. No name supply has no P9 connector (white 2pin cable at compaq Power supply). I don't know if coolers don't work cose the main board is damaged or that P9 connector is missing.
I don't have any diagram of mainboard or power supply.
can anybody help me with that?
maciej |
Unregistered guest |
| Posted on Tuesday, February 28, 2006 - 08:18 am: |
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Hi, someone try to use a 20pin->24pin adapter and then change some wire to be like compaq 24pin? |
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