I think there's a bios version out there that'll allow you to run with no fan connected to header 1 - can't remember which one it is, but check the abit website and see what it says for all the bios releases.
Here ya go: http://www.abit.nl/english/download/bios update/bios-kt7-raid.htm
This is for the KT7-RAID though, not the KT7a-RAID, so I don't know whether it'll work - however, the WW bios listed for the KT7a-RAID (only one listed) also works on all the other KT7 boards, so it would seem reasonable that the WT and UL would work as well - but I'd check with someone using it first.
The WW bios version - It needs a Fan connected to Fan1. You can't disable it in the bios. Here is what I did.
connected my FOP-38 to the molex on the harddrive. (the freekin chip is at 21c idle and 25-26c maxxed out
Connected just the fan (not the heatsink) from my old HSF. (coolermaster) to the FAN! header. I placed in a hot zone, So it would blow some air around in my case.
walla no more beep - and the system boots up fine. I am hoping that abit comes out with a bios to disable this in the future.
nakman8 (Feb 10, 2001 04:02 a.m.):
I run all my fans off a seperate power supply.
Manual says you have to have a fan on fan1 header or the board will not run.
Anyone figured out how to defeat this yet?