Core 2 Duo E8500 + P5B Deluxe overclocking

[PolRoger]

Try testing the overclock with both the 2x1Gb kit and the 2x2GB separate... Or rather each kit individually... I'd also manually enter in the default primary timings for each kit... like 5-5-5-15 or 4-4-4-12.

 

[Mr.Scott]

Try testing the overclock with both the 2x1Gb kit and the 2x2GB separate... Or rather each kit individually... I'd also manually enter in the default primary timings for each kit... like 5-5-5-15 or 4-4-4-12.

I agree, but do you think it will bring back the lost straps?

 

[PolRoger]

I agree, but do you think it will bring back the lost straps?

I'm not sure... Maybe revert back to earlier BIOS?

http://forums.aria.co.uk/showthread.php/3411-Overclocking-with-an-Asus-P5B-deluxe

"Please remember that in 0507, there appears to be a divider issue with certain memory. Check and make sure that your are not currently running your memory with a divider, and if your are, try it without. If you must use a divider, downgrade your bios to 0502.

 

[Mr.Scott]

I'm not sure... Maybe revert back to earlier BIOS?

http://forums.aria.co.uk/showthread.php/3411-Overclocking-with-an-Asus-P5B-deluxe

"Please remember that in 0507, there appears to be a divider issue with certain memory. Check and make sure that your are not currently running your memory with a divider, and if your are, try it without. If you must use a divider, downgrade your bios to 0502.

That was my thought. Thanks for that link.

 

[unclewebb]

This chipset was originally designed for CPUs with a 266 MHz FSB and the lowest the memory could run at was 2:1 so you would get a memory speed of 533 MHz. When you overclock this board to a FSB of 400 MHz, the lowest you can run your memory at is 800 MHz.

These boards are not happy when running 4 sticks of memory. Overclocking will be a lot more productive if you only use 2 sticks.

I still use my P5B Deluxe. It has been to hell and back but I have a hard time retiring a board that can be reliably overclocked over 100%. It was ahead of its time.



The P5B Deluxe does not like running a high FSB when using a Quad so a few years ago I switched to a QX9650 with an unlocked multi. This allows some decent total MHz while being able to leave the FSB at this CPUs default of 333 MHz. If you need any help with voltages, etc., I will post a screenshot.

This board also has some FSB MHz holes where it is not happy. A FSB of 390 MHz to 400 MHz can be a problem but beyond that should be smooth sailing as long as all of the voltages are set appropriately.

Bios 1237 and 1238 have worked well for me.

Edit - With the QX9650, I have the FSB set to 333 MHz.

Memory 2.05V
CPU Vcore 1.35V
FSB Termination 1.30V
NB Vcore 1.55V
SB Vcore 1.60V
ICH Chipset 1.215V

On the memory page in the bios I am using these number from top to bottom,
5, 5, 5, 15, 6, 42, 4, 12, 4, 12 and Static Read Control is set to AUTO.

I am using some OCZ Reapers that were rated at DDR2-1150 but I am running these comfortably at DDR2-1000 now so I could keep the memory voltage low.



With your Bus Speed going over 400 MHz, you should run your memory at 5, 5, 5, (15 or 18) to get as much out of it as possible.