14-pin Compaq ATX to 20-pin mobo

[Jaz]

I want to use a Compaq 14-pin ATX power supply from a Deskpro 4000EN
on a normal 20-pin ATX motherboard (I know this sounds silly, but I
have two other 4000en's running Linux and Solaris, and this 90W PSU is
extremely quiet, so this case/PSU would make i nice home for my
mini-ITX allways-on system, which only needs 50Wor so)

So if this isn't a totally rediculous idea, then how would I wire the
14-pin PSU to 20-pin mobo?

PSU System board

1 +3.3Vdc 1 +3.3Vdc
2 +3.3V Sense 2 +3.3Vdc
3 Signal GND 3 Signal GND
4 +5Vdc 4 +5Vdc
5 Signal GND 5 Signal GND
6 +5Vdc 6 +5Vdc
7 Signal GND 7 Signal GND
8 +3.3Vdc 8 PWR-OK
9 -12Vdc 9 +5VSB
10 Fan Off 10 +12Vdc
11 On/STBY 11 +3.3Vdc / 3.3V Sense
12 +5V Aux 12 -12Vdc
13 +3.3V Sense 13 Signal GND
14 +12Vdc 14 PS-ON
15 Signal GND
16 Signal GND
17 Signal GND
18 -5Vdc
19 +5Vdc
20 +5Vdc

Thanks

 

[Gary Tait]

I want to use a Compaq 14-pin ATX power supply from a Deskpro 4000EN
on a normal 20-pin ATX motherboard (I know this sounds silly, but I
have two other 4000en's running Linux and Solaris, and this 90W PSU is
extremely quiet, so this case/PSU would make i nice home for my
mini-ITX allways-on system, which only needs 50Wor so)

So if this isn't a totally rediculous idea, then how would I wire the
14-pin PSU to 20-pin mobo?

PSU System board

1 +3.3Vdc 1 +3.3Vdc
2 +3.3V Sense 2 +3.3Vdc
3 Signal GND 3 Signal GND
4 +5Vdc 4 +5Vdc
5 Signal GND 5 Signal GND
6 +5Vdc 6 +5Vdc
7 Signal GND 7 Signal GND
8 +3.3Vdc 8 PWR-OK
9 -12Vdc 9 +5VSB
10 Fan Off 10 +12Vdc
11 On/STBY 11 +3.3Vdc / 3.3V Sense
12 +5V Aux 12 -12Vdc
13 +3.3V Sense 13 Signal GND
14 +12Vdc 14 PS-ON
15 Signal GND
16 Signal GND
17 Signal GND
18 -5Vdc
19 +5Vdc
20 +5Vdc

Thanks

Personally, I'd snip off the plug from a blown supply, and connect
that to the appropriate wires form the good supply.

 

[Jaz]

Personally, I'd snip off the plug from a blown supply, and connect
that to the appropriate wires form the good supply.

Actually, it's the 14-pin PSU that I want to use -- it's not that this
power supply is blown, but that it's integrated into the case. So I'd
like to try to use it with a new 20-pin motherboard. I even have an
older standard 20-pin mobo that I can use as a test bed to make sure
the conversion isn't going to fry the new mobo (not right off the bat
anyway)
-jaz-

(Please excuse the 'burp' when replying)

 

[Gary Tait]

Gary Tait <[email protected]> forgot to take the pills and
typed:

Actually, it's the 14-pin PSU that I want to use -- it's not that this
power supply is blown, but that it's integrated into the case. So I'd
like to try to use it with a new 20-pin motherboard. I even have an
older standard 20-pin mobo that I can use as a test bed to make sure
the conversion isn't going to fry the new mobo (not right off the bat
anyway)
-jaz-

(Please excuse the 'burp' when replying)

Thats hwat I sad, tak the connector from a blown supply, and splice it
on the wires of the good supply. It doesn't matter which supply is
which, just that you jet the proper wire function on the proper wire.