ASUS Maximus Formula SE

[Krav]

This is my 3.4GHz setting BIOS 907

Extreme Tweaker
Ai Overclock Tuner : Manual
OC From CPU Level Up : AUTO
CPU Ratio Control : Manual
- Ratio CMOS Setting : 8
FSB Frequency : 425
FSB Strap to North Bridge : 400MHz
PCI-E Frequency: 110
DRAM Frequency: DDR2-1133
DRAM Command Rate : 2T
DRAM Timing Control: Manual
CAS# Latency : 5
RAS# to CAS# Delay : 5
RAS# Precharge : 5
RAS# ActivateTime : 15
RAS# to RAS# Delay : AUTO
Row Refresh Cycle Time : AUTO
Write Recovery Time : AUTO
Read to Precharge Time : AUTO

Read to Write Delay (S/D) : AUTO
Write to Read Delay (S) : AUTO
Write to Read Delay (D) : AUTO
Read to Read Delay (S) : AUTO
Read to Read Delay (D) : AUTO
Write to Write Delay (S) : AUTO
Write to Write Delay (D) : AUTO
DRAM Static Read Control: AUTO
Ai Clock Twister : Strong
Transaction Booster :Enabled
Boost Level: 0

CPU Voltage : set what you need here
CPU PLL Voltage : 1.52
North Bridge Voltage : 1.49
DRAM Voltage : 2.0
FSB Termination Voltage : 1.40
South Bridge Voltage : 1.050
Loadline Calibration : Enabled
CPU GTL Reference : Auto
North Bridge GTL Reference : Auto
DDR2 Channel A REF Voltage : AUTO
DDR2 Channel B REF Voltage : AUTO
DDR2 Controller REF Voltage : AUTO
SB 1.5V Voltage : 1.5


These settings passed 24 prime 12 hour OCCT

any ideas why i cant set cpu ratio control to manual? it doesnt highlight to allow me to change but will let me enter numbers only but then i cant see the ratio cmos setting..

Im on 903 bios

also im suspicious of the cpu level up feature, could i cause damage to cpu or anything else but i leaving it on crazy setting which runs at 3.5ghz