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How does RAM factor into OCing? Which one should I get for an E8400?

post #1 of 14
Thread Starter 
Blegh, Finally building my first rig, and now I am on the step of choosing which ram to get. I know close to zero about ram and ocing as I've never done it before. Which ram speed would be best paired with an e8400 and how does the speed affect OCing?

Thanks
post #2 of 14
Good overclocking RAM can withstand higher memory dividers when you increase your FSB speeds.

The higher you overclock your FSB, the higher your memory speeds will go...
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post #3 of 14
hmm, an e8400 runs at 1333mhz, so ideally ur gonna want some ddr3 ram to run 1:1 memory timings with. but ddr2 will still work at 4:5 when it is at 1066. so, the question comes down too, how far do you want to overclock to?
answer that and ill give you the next part.
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post #4 of 14
Thread Starter 
Quote:
Originally Posted by Mxbn0 View Post
hmm, an e8400 runs at 1333mhz, so ideally ur gonna want some ddr3 ram to run 1:1 memory timings with. but ddr2 will still work at 4:5 when it is at 1066. so, the question comes down too, how far do you want to overclock to?
answer that and ill give you the next part.
Well i'm buying a used e8400 and he said he made it to 4.0 on stock voltages.
post #5 of 14
ok, so 4000/9=444.4444...
therefore, you can run ddr2 800mhz ram at 889mhz a 2:3 ratio with ur fsb and memory timings. can someone else please clarify that though. im pretty sure my maths is right.
just ask him what settings he ran. im running my ram at 998 from 800mhz stock voltages and timings and its fine. can u fill in ur system in ur user cp plz. lol
you just need to know that whatever you do to ur cpu in fsb, its going to do double with ur ram.
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post #6 of 14
check this:

link
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post #7 of 14
Thread Starter 
Quote:
Originally Posted by Mxbn0 View Post
ok, so 4000/9=444.4444...
therefore, you can run ddr2 800mhz ram at 889mhz a 2:3 ratio with ur fsb and memory timings. can someone else please clarify that though. im pretty sure my maths is right.
just ask him what settings he ran. im running my ram at 998 from 800mhz stock voltages and timings and its fine. can u fill in ur system in ur user cp plz. lol
you just need to know that whatever you do to ur cpu in fsb, its going to do double with ur ram.
So I should just get DDR2 800 and OCit since the ram isn't going to be OCed alot to run it in 1:1?
post #8 of 14
hmm, i still need someone to clarify that though, sorry. i don't want to be telling the wrong thing to buy. im sure either 1066 or 800 will run fine, just not confident on the timings.

edit: i haven't ever used such a high fsb before, but im sure ddr3 is not mandatory
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post #9 of 14
Thread Starter 
Quote:
Originally Posted by Mxbn0 View Post
hmm, i still need someone to clarify that though, sorry. i don't want to be telling the wrong thing to buy. im sure either 1066 or 800 will run fine, just not confident on the timings.

edit: i haven't ever used such a high fsb before, but im sure ddr3 is not mandatory
Thanks for the input +rep

I def don't wanna go DDR3, can't ford it atm
post #10 of 14
Judging from what the majority of overclocked E8400s are running on this forum, I'd say a decent set of G.Skill or OCZ 800mhz or 1066mhz will do fine. I believe any noticeable difference between 800 overclocked and 1066 are very minimal with good latency timings.
 
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