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athlon 64 3500 sockete 939 with 1.5gb ram - only 4800mb/s??

I

imported_Kane3030

Junior Member
when i first built my comp, i used 2 256mb ddr 400 modules and i had a bandwith tested at 5700. i just got 2 512mb modules and put them in a second bank for a total of 1.5gb (256+256, 512+512) and now my bandwith is coming up as 4800.

why would this happen and is there anything i can do??
 
As I've said in numerous threads already, the more DIMMs per channel you have, the slower the timings must be to make it work. Your board's BIOS knows that, and has either eased up on the timings, or even reduced RAM operating frequency from 200 down to 166 or so.
 
... but with relaxed timings, most probably command rate 2T instead of 1T. That costs a lot of (benchmark) bandwidth, but matters much less in real life.
 
Wrong forum!

If you wanted to know how the timings work in micro technology that would be a question for this forum.

-Kevin
 
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