Cant boot computer

I was checking my bios settings because it was eroneously reporting my processor as an xp1800, while doing this had adjusted the cpu fsb clock setting to 166mhz to see if it changed the reading in the bios instantly or not and upon exit I exited and saved on accident, now my computer wont boot and the D-bracket leds show it hanging on the memory detection test, I have tried several other sticks of ram that are good they are in the machine im using now. any one have any ideas I have tried reseting cmos with the jumper and by removing the battery and nothing any help would be great.
Thanks

got it working again messed with the j10 and j11 jumpers they control the FSB mode and freq, so set it to 100 on both instead of 133/166 and it fired right up so i could restore cmos defaults
Thanks for the help

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But that's it nothing on the screen. :(
So I went looking for the problem I cleared the cmos settings put in a new battery. tried new ram, New harddisk, new Graphics card, new power supply But its still not working.
The only strange thing that i'm noticing is that the red led at the front of the case stay's on. Normaly it flashes when the cpu is working but it stay's on.
It also seems like the computer Is looking for a dvd.
Is the motherboard dead or is there a problem that I did not think of.
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Btw: sorry for my bad english

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