How to overlcock E8500

[vickihenderson]

i am intrested in overclocking the E8500 but i am not sure how to do it.

i would prefer to use air cooling

i have 1 back 1 front and 1 side fan on my case, and i have zalman cnps 9700 led with the adjustable speed fan controller on the back of my case.

its currently ruuning at stock 3.16ghz and never had been overclocked before

I have the gigabyte ga p35 s3g motherboard.

any advice appreciated

[Brad]

I expect your memory will limit any overclocking.

[vickihenderson]

its kingston value ram i have in, its 667 speed. never overlcocked before but any ideas of what i can get out of it or what ram i could get

[Desertmonk]

Sorry to sound so pesimistic and useless, but overclocking is far too big a subject to for anyoen to write in each topic.

However, you don't have to overclock to the "extreme" as it were, basic overclocking methods are quick & easy, within the grasp of everyone. In escence, a very crude and basic method is this:

increase FSB by 20MHz
Stress test (30mins OCCT)
increase FSB by 20MHz
Stress test (30mins OCCT)
Repeat until it fails the stress test
add 0.05v to the vCore
increase FSB by 20MHz
stress test (30mins OCCT)

Do that until you reach the max safe vcore for your CPU, or when it simply won't go any faster irrespective of how many volts go through the CPU.

There are milliosn of overclocking guides on the internet, it's very easy to find out what words like vCore, FSB etc mean. There is also an abundance of info regarding, say, the max safe vCore for a E8500.

[Brad]

Intel burn test is a faster and more stressful program to use than OCCT. Your ram is at its max rated speed with your CPU at stock but it may overclock which will allow you to push your CPU more. If you had faster ram then i would expect you to get 4Ghz if your E8500 is a E0 stepping.

[Helior]

Budget RAM of 667 MHz will limit you badly, lets say you can overclock the RAM to 700 that gives a max CPU speed of 350x9.5=3325GHz. I wouldn't bother without upgrading your RAM tbh.

[Desertmonk]

My budget 667MHz RAM does 900MHz 6-6-6-16 at 1.875v :D :D :D

but anyway, dude just set the FSB:RAM ratio to say, 3:2 and the RAM will be fine up until a CPU speed of 4GHz ish

[Brad]

lowest iv ever been able to run is 1:1.

[Desertmonk]

it's different for each combination of MOBO, RAM & CPU.

Think about it. If MOBO doesn't go below 1:1, how do you run 533MHz RAM on a modern E8xxx series CPU? How do you run 667MHZ RAM on a 1600MHz FSB QX9770?

[Helior]

I can't do any lower than 1:1 either.

[Brad]

it's different for each combination of MOBO, RAM & CPU.

Think about it. If MOBO doesn't go below 1:1, how do you run 533MHz RAM on a modern E8xxx series CPU? How do you run 667MHZ RAM on a 1600MHz FSB QX9770?

I thought that was the main point of having faster speed ram. A QX9770 has a unlocked multi so would run fine with any ram.

[PMM]

BOOT strap ;) will give ability to have other memory dividers

should be a bios setting for it 266/333/400 altering it gives a different set of mem dividers.

[Pixulated]

I expect your memory will limit any overclocking.

I agree with that, you'll have to find another way around it.

[Desertmonk]

I was using the 1600MHZ FSB of the QX9770 as an example.

But yeah, my motherboard hides options that are not viable on my particular hardware. For example I don't have a 1066MHz divider available for my 667MHz RAM. When you put a 1066MHz DIMM in then the 1066MHZ divider shows up as if by magic.

[Brad]

I was using the 1600MHZ FSB of the QX9770 as an example.

But yeah, my motherboard hides options that are not viable on my particular hardware. For example I don't have a 1066MHz divider available for my 667MHz RAM. When you put a 1066MHz DIMM in then the 1066MHZ divider shows up as if by magic.


Its not the chips 1600mhz fsb but the mobo would only be running at 600fsb max. I may be totally wrong here but thats always what i thought.