AN8 Ultra Power Supply

I've an AN8 Ultra MB which has a 24 pin ATX power supply socket, it been
running happily for some time on a 20 Pin, the manual says pins 11, 12,
23 & 24 should be left unconnected.
My new power supply has a 20 + 4 pin power supply plug, do I still need
to leave pins 11, 12, 23 & 24 unconnected if so why was a 24 pin socket
fitted and connected ?

Richard Fleet

On Wed, 21 Nov 2007 18:59:39 +0000, Richard Fleet wrote:

> I've an AN8 Ultra MB which has a 24 pin ATX power supply socket, it been
> running happily for some time on a 20 Pin, the manual says pins 11, 12,
> 23 & 24 should be left unconnected.

Check your manual again. It probably says that about using a 20 pin PSU
connector.

> My new power supply has a 20 + 4 pin power supply plug, do I still need
> to leave pins 11, 12, 23 & 24 unconnected if so why was a 24 pin socket
> fitted and connected ?

If it's a 24pin connector and you have a 24pin PSU, use all 24 pins.

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Wes Newell wrote:
> On Wed, 21 Nov 2007 18:59:39 +0000, Richard Fleet wrote:
>
>> I've an AN8 Ultra MB which has a 24 pin ATX power supply socket, it been
>> running happily for some time on a 20 Pin, the manual says pins 11, 12,
>> 23 & 24 should be left unconnected.
>
> Check your manual again. It probably says that about using a 20 pin PSU
> connector.
>
>> My new power supply has a 20 + 4 pin power supply plug, do I still need
>> to leave pins 11, 12, 23 & 24 unconnected if so why was a 24 pin socket
>> fitted and connected ?
>
> If it's a 24pin connector and you have a 24pin PSU, use all 24 pins.
>
That's what I thought - but the system won't start if all are connected,
I cant figure if it's the PSU (550w Colorsit) or the MB it works ok if I
leave pins 11, 12, 23 & 24 unconnected.

On Thu, 22 Nov 2007 09:32:14 +0000, Richard Fleet wrote:

> That's what I thought - but the system won't start if all are connected,
> I cant figure if it's the PSU (550w Colorsit) or the MB it works ok if I
> leave pins 11, 12, 23 & 24 unconnected.

Everything you want to know about PSU's.

http://www.playtool.com/pages/psucon...onnectors.html


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