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P3B-F DOA??

B

BT7990

Senior member
I bought a P3B-F and installed it. After hooking up the ATX pwr noticed no green led pwr light on the board. Tried to turn it on and no go. Rechecked pwr supply (another board), tried off the MB tray, swapped pwr supply, etc, nada...Called vendor and RMA'ed back. Replacement due back on Thur.

Question...I read on a website that some boards, manufactures, require that the CMOS be cleared in order for the board to work (after I sent it back). I built over a dozen systems using Abit, Soyo and one Asus but never heard of this.

Anyone?
 
I believe if you overclock your board too far it may be necessary to reset it to default BIOS values, which can be done by entering the BIOS setup utility at startup. I suppose you can do something similar by resetting the CMOS via the motherboard, especially if the PC is really screwed up. But it shouldn't be necessary with a brand new board except if it won't boot properly - then resetting the BIOS may be a recommended troubleshooting step.
 
The board should clear the BIOS itself if the previous boot was unsuccesful.

When I was overclocking. Some of the settings were unbootable. I had to turn off the power supply and then turn the system on and it took me to BIOS screen right away.

So this motherboard does not need BIOS reset. It does everything by itself.

Great board.
 
The P3B-F has a built in safety mech. If the PC fails to boot, it will set the multiplier and bus speed to the lowest value that the processor will boot up with.
 
A few mobo manufacturers suggest this the very first time you boot the mainboard. After destroying a mainboard by clearing the Bios(it's a long story, and it's more complex than that simple statement)I hope to NEVER clear a board's Bios again. Ever.
 
I'm with the other P3B-F owners. I have two of them and if I overclock it too far and it won't boot I just turn off the power and back on and it automatically takes me back into the BIOS.

If the Power Supply is good you should get the green power light. I think you did the right thing, sounds like you got a bad board.
 
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