Overklokkings guide for core 2 duo

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Hei.

 

Kom over denne tråden på tomshardware forumet.

 

Skal beskrive ganske bra hvordan man kan klokke opp E5300, E6400, E6600, E6700 og X6800 med følgende hovedkort:

 

- abit AW9D series (975X)

- ASUS P5W DH series (975X)

- DFI Infinity or LANParty 975X/G

- abit AB9 series

- ASUS P5B* Deluxe/WiFi-AP (965P)

- Gigabyte 965P-DS3 or DS4 or DQ6

 

 

Core2Duo Overclocking Guide

 

Dere som har god erfaring med klokking kan jo kanskje informere om denne guiden er helt grei å bruke.

 

 

Core2Duo Overclocking Guide

 

Disclaimer: TGForumz and the author of this guide will not be responsible for any damage caused…etc.

Please do so at your own risk

 

Note: The settings in this guide will assume the user has adequate cooling for their processor.

And uses one of the following recommended motherboard:

-abit AW9D series (975X)

-ASUS P5W DH series (975X)

-DFI Infinity or LANParty 975X/G

-abit AB9 series

-ASUS P5B* Deluxe/WiFi-AP (965P)

-Gigabyte 965P-DS3 or DS4 or DQ6

*P5B vanilla is not recommended

**nForce590/570 Intel Edition based motherboard will not work with this guide nor recommended for overclocking**

 

Recommended cooling:

-Scythe Infinity

-Scythe Ninja Plus

-Scythe Mine

-Tuniq Tower 120

-Thermalright Ultra-120 or SI-128 or SI-120

-Noctua NH-U12

-Thermaltake Big Typhoon

-Arctic Cooling Freezer 7 Pro

-Zalman CNPS CNPS9500AT

-Zalman CNPS 7700AlCu or 7700Cu

(The first 7 heatsinks listed here will allow you to clock beyond 3.4Ghz stable)

 

Please also use RAM that’s rated:

-DDR2-667 4-4-4-xx (good for ~400Mhz*)

-DDR2-800 5-5-5-xx (good for ~410Mhz*)

-DDR2-800 4-4-4-xx (good for 500Mhz+*) ->Best for E6300/E6400

-DDR2-1066 5-5-5-xx (good for 530Mhz+*)

-Or any other RAM of the above mentioned speed that has even lower timings

*refer to Part2 for maximum Mhz extraction under 1:1 operation

 

The aim of this guide is to reach as close to 4Ghz (final clockspeed) as possible

 

Part1. Tidying Up Your BIOS (not all BIOS may have those options)

*You must update your BIOS to the latest version before proceeding*

 

1. Disable ‘AI Tuning’ for ASUS, ‘C.I.A.2’ for Gigabyte

2. Set PCI Express (PCIe) frequency @100Mhz (‘Auto’ for DS3/DS4/DQ6)

3. Set PCI frequency @33Mhz

4. Disable Hyperpath 3 (for P5W DH only)

5. Disable any ‘spread spectrum’

6. Disable Q-Fan (for ASUS only)

7. Disable ‘Limit CPUID Max to 3’

8. Disable any overvoltage protection

9. Disable ‘C1E’

10. Disable ‘EIST’

11. Disable Virtualization Technology

12. Disable No-Execute Memory Protect

13. Disable any other thing you don’t use

14. Do not enable any speed enhancements you see

 

The purpose here is to lighten up duties placed on the chipset

 

Part2. Memory Adjustments

**Expand options for Gigabyte BIOS under ‘M.I.T.’ by pressing CTRL+F1**

Gigabyte: Set ‘Memory Multiplier’ to 2 (1FSB:1RAM operation)

ASUS: Set ‘DRAM Frequency’ to DDR2-533 @266Mhz FSB (1FSB:1RAM operation)

As you increase the FSB, the RAM will follow in the pattern of 1:1 shown in BIOS.

 

1. Set ‘DRAM Timing’ to manual or disable SPD (use SPD for P5W DH)

2. In BIOS you will see 4 separate timing digits, change them to the ones specified on your RAM

 

e.g. 4-4-4-12

CAS# Latency (tCL)

RAS# to CAS# Delay (tRCD)

RAS# Precharge (tRP)

RAS# Precharge Delay or Active to Precharge (tRAS)

 

When 1FSB:1RAM is overclocked above the rated frequency of your RAM use the following values

Timing: 5-5-5-15

vDIMM: 2.2V

 

e.g. DDR2-667 4-4-4-12 1.9V operating at ~400Mhz will need to be set to 5-5-5-15 2.2V

 

3. Leave the rest of other timings either at ‘Auto’ or at their default values

 

Part3. Voltage (again not all BIOS will have the option or uses different name)

***The following voltages are to be used with Part4***

 

1. Set DRAM/DIMM Voltage (vDIMM) to 2.1V or 2.2V if specified by RAM (+0.3V or +0.4V)

2. Set MCH Voltage (vMCH) to 1.55V

3. Set FSB Voltage (vFSB) to 1.40V

4. Increase SB Voltage (vICH) by +0.1V from default-lowest value

5. Set CPU Voltage (vCore) for the following CPU

 

E6300=1.370V E6400=1.375V E6600=1.400V E6700=1.400V X6800=1.400V

 

Part4. Frequency Control

First attempt:

1. Set CPU Host Clock/Frequency (FSB) to 333Mhz (300Mhz for X6800)

2. Set CPU Clock Ratio or Multiplier to the default value for your processor

 

E6300-> 333x7=2331

E6400-> 333x8=2664

E6600-> 333x9=2997

E6700-> 333x10=3330

X6800-> 310x11=3410

 

3. Save settings and reboot

 

Further attempts:

1. Up even more FSB by 5Mhz or 2Mhz increasement

2. Calculate your final clockspeed

3. Up even more vCore if needed by 0.025V increasement

 

 

Part5. Stability Testing

You will need the following programs:

- CPU-Z

- Prime95

- Memtest86+

- Core Temp

- SpeedFan

 

1. Fire up CPU-Z and keep it running in the background to monitor clock speed

2. Fire up Core Temp to monitor temperature

3. Fire up SpeedFan to monitor voltages

3. Run dual instances of Prime95 in torture mode for 2 hours

4. (Optional) Run Memtest86+ for 2hrs

5. If stable go to Part4-Further Attempts, if not go back to last stable frequency

6. Once you’re happy with the settings proceed to the final part

 

Note1: The higher the final clock speed, the lower the temperature for CPU has to be to maintain stableness

 

Note2: Delta of Idle-Load reported by Core Temp should not exceed by 26°C

 

Note3: vCore should not fluctuate by more than +/- 0.100V. If it does, improve cooling on MOSFETs

 

Note4: If an attempt fails and the computer doesn’t boot, hold down ‘Insert’ key when booting to restore default settings in BIOS

 

Part6. Finalising

-Lower vCore by one notch at a time until lowest possible while maintaining the same stableness

-Do the same for vMCH, vFSB, vICH after the above step is completed

-Record the BIOS settings which works (except DFI and ASUS owners)

-(Optional) Pull off a PCMark and/or SuperPi32M score and compare to stock to gauge performance increase

 

 

If you have any questions please post a new thread in the Overclocking-CPU forum

 

Composed by wusy

 

V1.0 28/08/06

V1.1 14/09/06

 

7261556[/snapback]

[svingstang]

'huskeliste'

[Nizzen]

huskeliste ja

[Vargtass]

E6300=1.370V E6400=1.375V E6600=1.400V E6700=1.400V X6800=1.400V

 

Jøss, med f.eks et P5WDH i tillegg som undervolter 0.04V kommer dette virkelig til å ta av!