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help! mystery 5-pin connector on motherboard..

Last response: in Components
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Hello,
I have just inherited a dual xeon system that is a few years old. I have purchased a new case, power supply and other items for it, but have run into a problem.

On the old power supply (Delta Electronics DPS-600MB A) and mother board (Intel SE7525GP2) there is a connection that I can't find any info on.

It is listed in my mother board user guide as an "Auxilliary Power Connector", and it has 5 pins. The connector from the old PSU is labeled P14 and has 4 wires going into it (white, yellow, empty, black, orange).





My new power supply (corsair tx650) does not have this connection, so my question is: do I need this? If I power up the system without it will it do any harm? What is it and what does it do?

If it is necessary, is there some sort of adapter available?

Any info would be great, thanks!

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This looks like the old server power switch connection.

This was a better and more reliable connection for using the server board outside of the case.

Normally used in blade systems.

Only know this as i had a similar board several years back
Anonymous
Power supply Expert
Motherboard Authority

i have just purchased the same motherboard and have the same question. i put in a new power supply and plug it in and nothing happens. do you have to have that auxiliary connector connected.
Anonymous
Power supply Expert
Motherboard Authority

Did you solve this problem?
My 7520BD2 have 5 pin connector too, and Thermalkake 1200Wtts have not. :-(

Power supply Master
Motherboard Expert

It's an old power signal connection for Intel server motherboards.

Intel server motherboards used to require 3 power connections - a large main power connection, a smaller cpu power connection, and the P14 auxiliary power signal connection.

Power supplies with the P14 power signal connection are still available from online vendors.

lobstrosity - Here are links to your server power supply:

http://www.cwc-group.com/dps600mba.html

http://www.pcpartscollection.com/dpinc4sc60po.html



I've got a motherboard with the same 5 pin connector. has any one figured this out? It seems like an adapter should be easy to make for it if we knew what the expected voltage and amps are.
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