Overclocking my pc and its failing to boot into bios so i cant lower my fsb 
I have my manual and have a rough estimate on how to take away the memory chip 2 reset my bios but want some information first.
I was overclocking my
amd 4000+
2gig pc 3200 200mhz ram
x850 xt pe stock
thermaltake 480w psu @
240 x 10.5 @ 2500 ish 1,650 voltage @ 58c
ht multiplier at 4 = 960
2/2 ratio on memory so 240
This was stable running blend test for 10 minutes so i decided to up to 250 fsb and lower ht multi to 3 and then lower cpu multi to 10 but pc was booting at windows login screen and now i cant change the fsb back as when the booting screen is on it FREEZES ON DETECTING IDE yet it detects them first time and then repeats this process,
sofar i have tried removing a stick of memory coz i dont want to remove the memory chip encase i damage my board as i have never done it before. anyhelp? USING MY LAPTOP SO PLEASE REPLY FAST, any help appreciated

I have my manual and have a rough estimate on how to take away the memory chip 2 reset my bios but want some information first.
I was overclocking my
amd 4000+
2gig pc 3200 200mhz ram
x850 xt pe stock
thermaltake 480w psu @
240 x 10.5 @ 2500 ish 1,650 voltage @ 58c
ht multiplier at 4 = 960
2/2 ratio on memory so 240
This was stable running blend test for 10 minutes so i decided to up to 250 fsb and lower ht multi to 3 and then lower cpu multi to 10 but pc was booting at windows login screen and now i cant change the fsb back as when the booting screen is on it FREEZES ON DETECTING IDE yet it detects them first time and then repeats this process,
sofar i have tried removing a stick of memory coz i dont want to remove the memory chip encase i damage my board as i have never done it before. anyhelp? USING MY LAPTOP SO PLEASE REPLY FAST, any help appreciated