Overclocking RAM

[Slinwagh]

I have my Q6600 stable at 3.3GHz, 367 x 9, 1.325v BIOS, 1.36 (Windows)

I am running the OZZ 4Gb Platinum Kit http://www.overclockers.co.uk/showp...al Channel Platinum Series DDR2 (OCZ2P10664GK)

I would like now to get the RAM to run as close as I can the 1066MHz it is rated at.

Currently it is set at 333 / 800 in the BIOS 5 -5 -5 18

What would you suggest I look at setting the RAM too?

 

[Admiral Huddy]

You'll need to run the memory asyncronously, so just head off into the BIOS and select the highest RAM frequency nearest to the stated RAM frequency.

 

[Slinwagh]

You'll need to run the memory asyncronously, so just head off into the BIOS and select the highest RAM frequency nearest to the stated RAM frequency.

Does it matter if that is 266 /333 / 400 etc if you know what I mean!

 

[zykan]

taking note that, you don't have to have the ram clocked at 1066, with 800 you could have tighter timings

 

[Slinwagh]

taking note that, you don't have to have the ram clocked at 1066, with 800 you could have tighter timings

Care to elaborate?

 

[Pneumonic]

Simplified RAM effectivly has two factors that contribute to its "speed"

Frequency which is effectivly how quickly it passes data.. so 1066mhz is quicker than 800mhz

The second factor is timmings.. so these are the 4-4-4-12 or 5-5-5-15 that you see quoted about... the timmings are how many clock cycles the RAM has to go through before it gives a reply.. so the lower the numbers the less cycles it is running and therefore the faster it replies...

So 4-4-4-12 @ 800mhz is practically the same "speed" as 5-5-5-15 @ 1066mhz

So the RAM I have is rated at 5-5-5-18 @ 1200mhz, I run my FSB @ 423mhz... so my DDR2 RAM @ a 1:1 divider runs @ 846mhz... now I could either adjust the divider and run the RAM faster than the FSB and get it closer to its rated 1200mhz @ 5-5-5-18 or I can run it at a lower frequency and "tighten" the timmings..