12V AUX Header

[jameson_uk]

I have just got hold of an old XP2800 with an ABIT NF7 mobo. This has one of those P4 12V AUX sockets.

My PSU does have one of these but do I need to connect it up ?? If I do, do I need to leave all the pints in the standard 24pin job connected as well ??

What does this extra 12V socket actually achieve ??

[Big Adam]

"Yes",
"Yes", and
"Makes your mobo work"

Someone will be along shortly to provide the technical answer. ;)

[jameson_uk]

"Makes your mobo work"
Works without it though ??

[Archaon]

Er, no, oddly enough it doesn't work if it isn't correctly powered.

[jameson_uk]

Er, no, oddly enough it doesn't work if it isn't correctly powered.
No, it does work is what I was saying :confused: . I have seen things about p4 boards needing this connector but not Athlon ones. There was some cryptic description in the manual but the board works fine with just the standard ATX connector

[Cable Monkey]

I think there may be stability problems if you start to push the board hard, the way a modern game would for instance. I suspect the 12v connectors supply additional current if required. Does the NF7 have a reputation as a good board for overclocking?

[Dunc]

wrong wrong wrong wrong

The NF7 does indeed have this connector, but it is definitely not required (its really a p4 thing only). I read somewhere abit added it to provide an extra, supposedly cleaner 12v line to the board. However when tested, it made no difference whatsoever to the stability of the board. I guess if you had a really poor quality PSU it might help..

I cant remember where I read that, but my personal experience with the board shows exactly that. I've never used that connector, and never had an stability problems, and it is an excellent overclocker. I've always seen it as just another ugly wire that wasnt needed and got in the way.

[Big Adam]

wrong wrong wrong wrong

The NF7 does indeed have this connector, but it is definitely not required (its really a p4 thing only). I read somewhere abit added it to provide an extra, supposedly cleaner 12v line to the board. However when tested, it made no difference whatsoever to the stability of the board. I guess if you had a really poor quality PSU it might help..

I cant remember where I read that, but my personal experience with the board shows exactly that. I've never used that connector, and never had an stability problems, and it is an excellent overclocker. I've always seen it as just another ugly wire that wasnt needed and got in the way.
http://forums.hexus.net/images/smilies/bowdown.gif

[latency]

I was about to say the same thing as dunc, but he's done it for me :)

[Dunc]

http://forums.hexus.net/images/smilies/bowdown.gif

haha, thats what i like to see ;)

[Abnormal1]

Hi,
I believe that the extra connector was also created because of the increased power requirements of the newer Pentium’s. For example the 3.6GHz P4 requires 115 Watts whereas a 2.5GHz P4 requires only about 60 Watts (An Athlon64 3000 is also 60 Watts).

For athlons the connector is not really required however if you have the connector on your motherboard and power supply you might as well use it since it will help with the power requirements of your CPU (especially if overclocking)

Abnormal1

[BUFF]

Actually it does help with stability for overclocking at higher fsb but no it isn't needed just to run stock.