Solved How do I Overclock my C2D E7500?

June 2, 2012 at 22:11:54
Specs: Windows 8, Core 2 Duo E7500 3Ghz/3Gigs DDR2
how do i overclock my e7500 C2D

well i am running it on 276X11 i can go to 286 also but some times system
As-rock G-41C-VS
i can OC from board.
please tell me what i must and please use simple language. :(

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June 2, 2012 at 23:06:48
Post the memory speed.

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June 3, 2012 at 05:34:40
Manual BIOS setting for OC recommended.
Lock PCIe at 100
Disable Speed Step, Spread Spectrum, and C States.
For DDR2 667 or 800: Set memory freq. 333MHz for DDR2 667
For DDR3 1333: Set memory freq. 667 for DDR3 1333
Set CPU Frequency 333MHz and BEGIN with a Multiplier of 7
After you prove that this will post, begin raising the multiplier by one at a time.
You should be able to run the multiplier of 10 or possibly 11 but you may need to raise your VCore by one or two small steps if you fail to post or achieve stability. Use CPU-Z to monitor progress and use HWMonitor or Speedstep to monitor internal temperatures, etc. If your temps begin to go up too much (idle and/or load), back down on the multiplier a bit unless/until you upgrade your CPU Heat Sink. Retest for Stability and if needed raise VCore a bit but remember that this will effect the temperatures. Your VCore range is: 0.85V - 1.3625V. Look here for more details :

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June 3, 2012 at 08:15:56
✔ Best Answer
As kuwese said, we need to the memory speed. The memory should be adjusted to run in sync with the CPU. In other words, if the CPU frequency is 276MHz, the RAM frequency should also be 276MHz. That is known as having a 1:1 ratio.

Here's your board specs & manual:

G41C-VS specs

G41C-VS manual

Overclocking should be done in the BIOS, not thru software.

- set the DRAM frequency to 266MHz DDR2-533
- set the Ratio CMOS Setting to 9 (this is a temp setting)
- Intel SpeedStep = disabled
- Overclock Mode = manual
- CPU Frequency (MHz) = 333
- PCIe Frequency (MHz) = 100

There should be no reason to mess with voltages at this point. If the above settings are correct, the CPU will run at 3.0GHz @ 1333MHz FSB with the RAM running in sync as DDR2-667. I realize that the overall CPU clock speed only increased a small amount, but the FSB is now running 25% faster. To increase the CPU clock speed, all you need to do is increase the Ratio CMOS Setting. Try 9.5 (3.17GHz) or 10 (3.33GHz). If it becomes unstable with either of these settings, increase the CPU voltage slightly & try again.

Use CPUZ to double check & confirm your settings:

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