E6400 questions

Dashoe

New member
Ok I had another thread but i thought id expand on what i did here. I reset my voltages to stock and started scaling up the fsb, and ive gotten up to 2.9 ghz with out increasing the voltage and I havent had any errors and im running at about 37 degrees idle. Ive heard alot about the memory and 1:1 ration and timing, i really dont understand how to do this can anyone expand on this for me?

Thanks

SHOEMAKER
 
theres a ratio between the ram and the CPU.

I am not an expert at this. But different ratios increase or decrease the speed of the ram. I have a ratio of 1:15 (I think) So my ram goes up bits when I increase the FSB.

Its recommened to set this ratio to 1:1 when overclocking!

If I have any of this wrong please correct me.

As I said I am not an expert! :p
 
A 1:1 ratio means your FSB is running at the same speed your CPU and memory. In the case of a Core2Duo its 266MHz.

Of course if you don't have OC'ing memory you'll have to use a memory divider but if you do its good to try to keep the memory clocks as high as possible.
 
hey

So what exactly does it mean when it sais that my ratio is 4:5? Im pretty confused with this memory stuff. Ive got the core speed up to over 3.0 ghz , which is great , but id like to maximize my memory performance. Here are the cpuz screens



 
What do you mean by memory divider? I see that in bios but how exactly do i do that? thanx for all the help everyone :)
 
Dashoe said:
So what exactly does it mean when it sais that my ratio is 4:5? Im pretty confused with this memory stuff. Ive got the core speed up to over 3.0 ghz , which is great , but id like to maximize my memory performance. Here are the cpuz screens




that means your memory bus is 80% of your fsb (4/5 = 0.8) to set a memory divider means to assign a ratio / percentage of your FSB that you wish to force your memory bus to run at. As you increase the FSB you will want to lower the multiplier so you are not over stretching your ram

Edit: i expect ive put them the wrong way around but you get the idea lol
 
hey

I see alot of people talking about getting your ratio to 1:1 and lower the multiplier. how do i determine what the multiplier should be at?
 
don't know that I would want to lower the multi on a 6400 as the default is only 8x to start with.

if you drop down to 7x then you need to hit higher fsb to compensate e.g. you would need to do 7x 430 to match your existing 8x 377
 
hey

Well I think ive got everything working well.

I got the FSB at 420 with a 1:1 ratio with the ram.

So officially I have my first successful overclock.

my e6400 @2.13 ghz is now @3.360 with voltages at 1.344

The timings of my memory are at 4-4-4-15, I don't know if i should tighten them anymore.

Overall i am really happy on how it worked out.

Actually i think i could lower my voltages even lower without a problem, I just couldn't get it to boot with more than 3.4ghz , o well :)
 
ok

Well i ran prime 95 and had to loosen my timings to get it stable for 12+hours, is that regular? thanx it was alot of fun, interesting learning experience I hope to do it more when i get a chance.

O and thank all of you OC3D people for all the help. The guides were nice, but from personal experience, you wont be able to get it right till you go through a buncha trial and error. thnx ^_^

:) SHOE
 
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