4 gig of pc3200 ram

Streeteh · 10 Jan 2008 at 21:22

Ok, here's the scoop, i currently have 2 gig of that OCZ platinum ram (bought from overclockers 2 years ago), running at the default timings of 2-3-2-5 and ive set up a divider to keep it as close to default clocks as possible.

However, in order to prolong the life of my 939 board i recently bought a opteron 175 and overclocked the crap out of it to 2.75Ghz (and a 8800GT), but i decided to really give this computer a last lease of life i needed 4 gigs of ram.

So i went on the hunt for another 2gigs of the same ram, which i found on a popular auction site (damn these sticks are like gold dust) and bidded away. I was then informed by a friend that overclocking is much harder with 4gigs of ram. Will this cripple my overclocked opteron? If so i probably wont bother.

decto · 10 Jan 2008 at 22:44

Usually you need to reduce the memory FSB from 400 to 333 to support 4 dimms and you may need to use 2T vs 1T timings. However the with the AMD 64 cpus it's latency rather than overall memory bus speed so you should be able to step back a divider and still hit a similar overclock.

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El Jimben · 10 Jan 2008 at 23:01

decto said:
Usually you need to reduce the memory FSB from 400 to 333 to support 4 dimms and you may need to use 2T vs 1T timings. However the with the AMD 64 cpus it's latency rather than overall memory bus speed so you should be able to step back a divider and still hit a similar overclock.

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This is the case with my friend that has a x2 3800 and 4x512MB RAM but that said, I heard that chips that are revision E6 i.e. Optys as opposed to revision E4 have a better memory controller so maybe it won't kill your overclock.

Minstadave · 10 Jan 2008 at 23:07

You can drop to 2T and should manage to keep PC3200 speeds with a decent chip.

Streeteh · 10 Jan 2008 at 23:15

What is this T2 you speak of? I've been quite a ram noob till recently - i didn't even know what ram timings actually meant till a week ago D: