OC with 8gb RAM and Vista64

[tjoepie]

Hi all,

I read in several threads that OC was harder with 8Gb of RAM, could someone explain why?

Seeing the price of DDR2-800 I was going to get 8Gb (and put the swap in RAM).

Anyone with experience in OC with 8GB, what should I look out for?

Thanks !

 

[Lupiron]

I dunno about experienced, but I have a P5k-e wifi, that I just put vista 64 on while OC'd from a stock Q6600 to 3735. FSB is like 468, so I get a decent memory sync, its 4 x 2 gigs of GSkill 1066 @ 2.0 volt. 5-5-5-15.

So thats 8 gigs, and to be sure it was fine, I installed winblows 64 while OC'd that high. So I dunno about problems yet... looks pretty good to me so far! Now to tighten the RAM timings since its runnin' at 936 mhz while synced, and not 1066.

So far, it all looks good! And the ram to watch out for depends on where you wanna OC to! I am greedy, but still have to let my processor decide where my RAM OCs to, because I want that speed too! More power!!! More Speed! Flame on! (No more flames with a TRUE, so that part is no fun anymore, I liked seeing cores at 92c)

--Lupi

 

[Mondoman]

8GB currently means you have 4 DIMMs installed. With systems that use unbuffered RAM (such as current consumer DDR2 systems), each additional DIMM installed means the signals from the memory controller are split more ways, and end up being weaker for each individual DIMM. This means the system is less stable, which makes it harder to OC.

 

[Evilonigiri]

And thus to counter this, you add more voltage and/or lax timings.

 

[tjoepie]

great info, thanks guys.

 

[Lupiron]

So, how far did you wanna OC?

 

[tjoepie]

Not too much, I want a stable 24h gaming rig that will last me about 4 years. After 2 years I'll just upgrade the video and maybe some extra mem or hd.

 

[Lupiron]

Hehe, I am prolly the wrong guy for that! But as far as RAM goes, I guess just get pc 800 that is a good name type, OCZ, Ballistix, corsair dominator, etc. Unless you are going for the moon, you really dont need anything more.

I have my q6600 at 3.8 and the memory is only 475 mhz. (950) That really isnt that fast. But that is in sync with fsb, if you want one of those upper weird mem dividers, you could run it faster, but supposedly there isnt really much of a speed difference since the data passes through the FSB, which is 475. Got me, maybe I should test that out with super pi, that seems pretty good at seeing if the performance goes up by 1 second, or whatever, since some of the calculation numbers take 15 mins or more!

Maybe I will do that, But I think at this high of speed, the next highest divider raises it up to like 1156 or some such, and its gskill 1066 2 gigers. I'll find a way to test it out.

--Lupi!