Most all the overclocking is done thru the Cell Menu:
Cool’n’Quiet = disabled
Adjust Extra CPU Voltage (V) = ? not sure about this.
CPU Frequency (MHz) = 200
CPU Dynamic OverClocking = disabled
CPU Frequency Configuration:
Adjust CPU Ratio = 16
CPU Voltage = 1.40v
Memclock Mode = manual
Adjust DDR Voltage = 2.1v
MCT Timing Mode = manual
CAS Latency (TCL) = 4
Min RAS# Active Time (TRAS) = 15
Row Precharge Time (TRP) = 4
RAS# to CAS# delay (TRCD) = 4
Row to Row delay (TRRD) = auto?
Row cycle time (TRC) = auto?
Row refresh Cycle time (TRFC) = auto?
Read to Write delay (TRWT) = auto?
Bank Interleaveing = enabled
CMD-ADDR Timing Mode = 1T is faster but *may* be unstable; 2T is stable but slower
PCIE Frequency (MHz) =100
Spread Spectrum Configuration:
CPU/LDT Spread Spectrum = disabled
PCIE Spread Spectrum = disabled
SATA Spread Spectrum = disabled
FYI, I looked up Reaper DDR2-800 at the OCZ website & found the specs as 4-4-4-15 @ 2.1v. You may wanna double check to make sure it's the right RAM.
Assuming the above settings work, the CPU will run at 3.2GHz with the RAM at 800MHz DDR, the HT/LDT bus at 1000MHz & the PCIe bus at 100MHz.