hello guys..i got a prob with my FC..i cant ever set it to 250 Mhz

with this setting :
Genic BIOS Setting :CPU Frequency = 250MHz
Hammer Fid Control = x9
HT Frequency = 3x
HT Width = Up 16 Down 16
PCIE Clock = 100MHz
AMD K8 Cool & Quiet = Disabled
DDR Voltage Contorl = 2.6v
Chp Voltage Contorl = 1.5v
DRAM Configuration :Memclock Index Value (Mhz) = 200 Mhz
Tcl = 2.5
Tras = 8T
Trcd = 4T
Trp = 4T
Trrd = 2T
Trc = 8T
Trfc = 16T
Twr = 3
Twtr = 2
Trwt = 3
Tref = 3120
Twcl = 1 Mem clock after CAS#
DDR Output Driving = Auto
DDR DQ Drive Strength = Auto
1T/2T Memory Timing = 1T
Read Preamble Value = 5.5ns
Async Latency Value = 8ns
Dynamic Idle Cycle Counter = 256cycle
DDR Output Driving = Auto
DDR DQ Drive Strength = Auto
PDL Delay Adjust = Auto
DLL Speed Override = Auto
MTRR Mapping Mode = Continuous
DRAM ECC Feature Control = Disabled
My current spec are :
Processor - AMD64 3000+ Venice E3 (s939)
Mobo : DFI NF4 Infinity Ultra
RAM : 2x512MB GSkill FC
Graphic Card - Inno3D 7600 GST
HDD : WD 120GB 8MB
Optical Drive : ASUS 52x DVD-ROM, LG DVDRW
PSU : Fortron Bluestorm 500W
Window XP PRO SP2
hope somebody can giv ur opinion..