Overclocking help with Maximus Formula

[Jonathakru]

Hi All
New here

could anyone help me OC my qx6850 to 4Ghz on this board.
I am currently @ 4.85Ghz with 1.45V

My specs are
Mobo:Asus Maximus Formula
Cpu:Qx6850
Ram:Mushkin redline ddr2 1000
PSU:Gigabyte Odin 800Watt
Graphics:Gecube 4870

Here are the settings i have used:

Extreme Tweaker
Ai Overclock Tuner : Manual
CPU Ratio Setting : 10
FSB Frequency : 400
FSB Strap to North Bridge : AUTO
PCI-E Frequency: 100
DRAM Frequency: 800
DRAM Timing Control: Auto
DRAM Static Read Control: AUTO
Ai Clock Twister : AUTO
Transaction Booster : AUTO

CPU Voltage : 1.45-1.53
CPU PLL Voltage : 1.62
North Bridge Voltage : 1.55
DRAM Voltage : 1.9
FSB Termination Voltage :1.42
South Bridge Voltage : 1.1
Loadline Calibration : Enabled
CPU GTL Reference : 63
North Bridge GTL Reference : 67
DDR2 Channel A REF Voltage : AUTO
DDR2 Channel B REF Voltage : AUTO
DDR2 Controller REF Voltage : AUTO
SB 1.5V Voltage : AUTO

NB LED Selection : NB Volt
SB LED Selection : SB Volt
CPU LED Selection : CPU VOlt
Voltiminder LED : Enabled

CPU Spread Spectrum : Disabled
PCIE Spread Spectrum : Disabled

Advanced CPU Configuration
CPU Ratio Control : manual
- Ratio CMOS Setting : 10
C1E Suppport : Disabled
CPU TM Function : Disabled
Vanderpool Technology : Disabled
Execute Disable Bit : Disabled
Max CPUID Value Limit : Disabled

If anyone can help me i would really appreicate it

[Clunk]

Welcome to the forums

A lot of quads wont go much higher than you are at now with any stability.

What you can do is try a higher multi and see if that gets you anywhere.

This "CPU GTL Reference : 63" Do you have a 67 setting?..if so, try that.

[Jonathakru]

I can boot in vista 64 with the following settings but it is very unstable( i can complete a super PI 1M)

Extreme Tweaker
Ai Overclock Tuner : Manual
CPU Ratio Setting : 12
FSB Frequency : 333
FSB Strap to North Bridge : AUTO
PCI-E Frequency: 100
DRAM Frequency: 800
DRAM Timing Control: Auto
DRAM Static Read Control: AUTO
Ai Clock Twister : AUTO
Transaction Booster : AUTO

CPU Voltage : 1.4875 (1.464 actual)
CPU PLL Voltage : 1.6
North Bridge Voltage : 1.65(1.696 actual)
DRAM Voltage : 1.9
FSB Termination Voltage :1.3 (1.344 actual)
South Bridge Voltage : 1.1(1.12 actual)
Loadline Calibration : Enabled
CPU GTL Reference : 63
North Bridge GTL Reference : 67
DDR2 Channel A REF Voltage : AUTO
DDR2 Channel B REF Voltage : AUTO
DDR2 Controller REF Voltage : AUTO
SB 1.5V Voltage : AUTO

NB LED Selection : NB Volt
SB LED Selection : SB Volt
CPU LED Selection : CPU VOlt
Voltiminder LED : Enabled

CPU Spread Spectrum : Disabled
PCIE Spread Spectrum : Disabled

Advanced CPU Configuration
CPU Ratio Control : manual
- Ratio CMOS Setting : 10
C1E Suppport : Disabled
CPU TM Function : Disabled
Vanderpool Technology : Disabled
Execute Disable Bit : Disabled
Max CPUID Value Limit : Disabled

And my idle temps are

Motherboard : 29
Cpu 1,2,3,4 : 39,39,34,37
NB : 33
Sb : 34

Thanks

[Jonathakru]

Originally Posted by Clunk

Welcome to the forums

A lot of quads wont go much higher than you are at now with any stability.

What you can do is try a higher multi and see if that gets you anywhere.

This "CPU GTL Reference : 63" Do you have a 67 setting?..if so, try that.

Thanks

Unfortunately the highest setting in my bios is 63 for cpu gtl

If i flash my board to a rampage formula i can go to 67

The highest i can go in FSB is 475 but the board requires alot of volts

here is a screen of all my settings,temps and voltages

[Clunk]

I can't see anything immediately wrong.

Try the 333/667 strap?

Normally at this point, I would say to give the GTL Ref a bit of a tweak, but there isn't much in the way of adjustment on that board.