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I seem can't go above 2.12 GHZ.Help me Pls

Using a Acbel 450w PSU

CPU Core Volt = 1.5
DDR Ram Volt = 2.65
DDR Rof Volt  = -60mV
nForce4 volt    =1.6o
Hyper Tran volt = default

Drop ur ram divider to 133 or 166, set LDT Multi to 3, set ram timing to 3-4-4-8. push ur HTT up.

can do in bios

State your mobo brand and model. Some mobos don't have options like these.

Dude, ur psu rails are too low. U are risking your hardwares with that such low rails. Try to find DMM and measure it, or decrease the clocks.
Im using the same mobo as u, but havent maximise my proc yet. Just use the rated speed timings. When u reached the limit, then tighten the memory timings.