P4VMM2 Syntax Motherboard Dead after BIOS Change-Cannot clea

[basic15]

I have been trying to setup bios for ddr instead of sdram and I must have saved BIOS settings with problem, Immediatly and thereafter, Computer fans start for a part of turn and stop, Motherboard dead. I have tried to clear the BIOS by changing jumper to 2-3 and removing the battery, even removed battery overnight and I cannot clear the bios. (The motherboard manual says that all you need is to move the jumper. It does not even mention removing battery.)

I have the old sdram installed and the BIOS worked before I did the Save.

Any help would be greatly appreciated.

Thanks

[cp]

did you switch off the power supply or disconnected it properly (pulled the plug)? otherwise the mainboard will be powered by the standby voltage.

[Noel]

Do you mean the cpu fan turn only a little then stopped? P4VMM2 has many jumpers to consider even switching sdr to ddr and vice versa. Please elaborate.

[basic15]

Yes, I did disconnect the power cord and push the front Power Button to clear all power from board. When I had the problem, I had not changed any switches on MB and the old SDRAM was reinstalled. I had been able to boot just before I saved the BIOS. I do not know what might have changed in BIOS. I was looking at settings inorder to change to DDR, but I had not changed anything at the point of failure.

As for the fans, they just move enough to know that they get a very short burst of power.

[Noel]

well, i think you have to check your VRM circuit first before doing your next plan. I suspect one or more MOSFET are bad. Check it out first why there is only a "very short burst of power" then stoppped.