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Help with Asus Maximus Extreme overclock


sp0da

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Hello -

 

I have an Asus Maximus Extreme (BIOS 1104), that I just cannot seem to get stable.

 

The system will remain stable until gaming, where it runs great for a couple of hours some days, or less than 15 minutes on others. :[pouts:

 

System specs:

 

CPU: Intel E6850 (watercooled using Dtek Fusion V2, Swiftech MP655, and Thermochill 120.3 rad)

RAM: Corsair TWIN3X2048-1800C7DF

PSU: PPC 750

GPU: eVGA 8800 Ultra

Case: Thermaltake Armor

 

BIOS Settings are:

 

Advanced:

CPU Ratio : 9.0 (have tried at 7 and 8 - won't boot)

C1E: Disabled

CPU TM Function: Enabled

Vanderpool Technology: Enabled

Execute Disable Bit: Enabled

Max CPUID Val. Limit: Disabled

 

Extreme Tweaker:

Ai Overclock Tuner: Manual

OC From Level Up: Auto

CPU Ratio: 9.0

FSB Freq: 400 (have lowered it, won't boot...)

FSB Strap to NB: Auto (have changed to 266 and 333 with no success)

PCIE Freq: 100

 

DRAM Freq: DDR3-1600Mhz

DRAM Command Rate: 2T

DRAM Timing Control: Manual

Primary Info: 9-9-9-24-5-74-8-6

CAS#: 9

RAS to CAS Delay: 9

RAS Precharge: 9

RAS Active Time: 24

RAS to RAS Delay: Auto

Row Refresh Cycle: Auto

Write Recovery Time: Auto

Read to Precharge: Auto

Secondary Info: 10-6-5-4-7-4-7

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: Disabled

DRAM Dynamic Write Control: Disabled

Ai Clock Twister: Auto

Ai Clock Skew A: Auto

Ai Clock Skew B: Auto

Ai Transaction Booster: Auto

 

All voltages on auto except:

DRAM: 2.00V (it won't boot with anything less)

 

Loadline Calibration: Enabled

CPU GTL Ref.: Auto

NB GTL Ref. : Auto

DDR3 Channel A Ref: Auto

DDR3 Channel B Ref: Auto

DDR3 COntroller Ref: Auto

SB 1.5V: Auto

NB LED: NB Volt

SB LED: SB Volt

CPU LED: CPU Volt

Freq. LED: Enabled

Voltimeter LED: Enabled

CPU Spread Spectrum: Disabled

PCIE Spread Spectrum: Disabled

 

 

NorthBridge Chipset Config:

Memory Remap Feature: Enabled

Init. Graphic Adapter: PEG/PCI

PEG Port Control: Auto

PEG Port force x1: Disabled

 

 

Any and all suggestions are greatly appreciated! Thanks!

 

-Scott

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With my limited experience with overclocking I've been told to set voltages manually especially for core voltage and NB voltage....

 

I'm not sure how much the maximus extreme differs from a rampage but I know my board overvolts considerably. Its a lot of trial and error with voltages I've been at it a few days trying to lower everything as much as possible while still running stable.

 

DDR3 though... jesus I take it cost is no object? Just pay someone to do the overclock for you :P

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Thanks, Frosty. I have tried manually setting the voltages with the CPU and NB with mixed results.

 

Any suggestions on what voltages to start at?

 

Currently, in Vista right now, Everest is showing the CPU at 1.09v.

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