Bramamsterdam

I am new to OCing, but would like to look into it with my new system.
What I am looking for are some realistic expectations of what I could achieve on my system. I don't want to fry the thing, and I don't need to break any records...

system is a E8500 on a x48t dq6 with a 9500 Zalman on it, connected to a coolermaster realpower 850M and a 4870X2. My memory is by OCZ, a 1333mhz DDR3 7-7-7-20 set of 2x 2G.

I am having a hard time figuring out how to OC the memory, I guess because the DDR3 standard has mainly been used by experienced enthousiasts so far there are few beginners guides with these specs in mind. So I could use a little help. Apart from an estimate for OC results, I am also looking to find a basic anwer to a (probably) very basic question. Do you OC memory separately from the CPU or are they both bound to the FSB of your mainboard? In other words, can I OC only my CPU?

thanks
Bram

Wattes

Hey Bram Welcome to OCN!
Fill in your system specs here.
It's good to have another Dutchy around

To answer your question, the normal ratio DDR3 runs at is (FSBDR3) 1:2. So if your FSB is at 400Mhz, your ram will run @ 800Mhz (multiply by 2 for DDR makes 1600Mhz).
I'm not sure about Gigabyte, but on Asus X48 boards you can just set/change that ratio by changing the DRAM frequency in the BIOS.

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Bramamsterdam

Cool thanks, if anyone stumbles upon a recent OC guide... I ll be glad to study it, not being lazy posting here, just not finding a noobguide for x48 boards.

Wattes

Nice rig

Well I just ordered an Asus P5E3 Premium board, which is an X48 board with DDR3. With a bit of luck I can help you out soon enough

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Bramamsterdam

Hey cool!

This is where I got confused a bit: (tom's hardware)

E8500: 9.5x333 = 3.16 GHz

and then, on mem it says:

DDR3-1333 (PC3-10666) 9-9-9-24
The first part is self-explanatory (DDR3 memory).
• The number after it is the data transfer rate. Simply divide it by 4 to get the maximum FSB speed for which the module is rated. Example: 1600/4 = 400 MHz. Therefore, DDR3-1600 can work on systems with a FSB of up to 400 MHz (anything more and you’re lucky).

so then...DDR3 memory 1333mhz (like mine) can work on systems with a FSB of up to 333mhz? And since the 8500 MP is locked, does that mean I cannot increase the FSB of the mainboard?

Am I wrong? Am I wrong?

Wattes

Your memory can most likely run higher then what it's rated at (specially since it's OCZ), but you might have to up the volts on it a bit and/or loosen the timings.

I'm not a 100% about FSB:RAM ratio settings that are possible (it's been over a year since my last Intel board), but you can probably set a lower divider making your RAM run slower then your FSB.

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