Memory timings help!

chimpy

Senior member
Aug 3, 2005
284
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OK, so I'm overclocking my A64 3000+ Venice using this guide: http://forums.anandtech.com/messageview.aspx?catid=28&threadid=1497607

So, after completing steps 1 and 2, I think my max HTT is 315Mhz, and my max CPU speed is 2340Mhz (do these sound like reasonable values?).

Then I got on to section 3 - finding the memory max speed. It's a little more complicated then, as I have to fiddle with timings and 1T and 2T command rates. Here is a pic of my memory options in BIOS:
http://img477.imageshack.us/img477/1930/dsc013313it.jpg

So, to put it on 1T command rate (according to the gude, A64s ''suffer big time with 2T''), I just have to change the ''1T/2T memory timing'' option to 1T, right?

Ok, easy-peasy. But the guide also says to set my memory to ''2.5-4-3-7 1 T''. The 1T bit at the end is taken care of, but which of the options in the pic do I change for the others? Is it simply the 4 options underneath the 'Memclock index value'' option? If so, do I just leave the others set to ''auto''?

Thanks for any help and suggestions.
 

m1ldslide1

Platinum Member
Feb 20, 2006
2,321
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I can never remember which acronyms correspond to which values either, but it's likely that it's your first three options following CAS. You should google "tras" "trcp" and "trd" to make sure that these are the ones you want. Or you could just try to change them from Auto and see what the range of values is -- if you can select only between 2-6 on the first two and 4-16 on the fourth (or something like that) then you can assume that they're the ones you want.

But I doubt that you'll be totally sure until you google those acronyms and educate yourself on it.