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Howdy-
I have downloaded Sisoft Sandra, and checked my memory bandwith for the rig in my sig below. It registers at about 1920 MB/s. In the bios, I have the DRAM settings on turbo. This seems pretty low to me, especially when compared with a sandra's reference KT333 board with 3200 ram (over 3000 MB/s)
One thing thats weird is that Sandra detects my board to be the KT266a. Anything I can do with that?
When I upped my FSB to 140, the bandwith improved to about 2050 MB/s
Any advice guys?
That sounds about right frankly. Yeah Sandra reports all KT333's as KT266a. We'll just have to wait for the next release to fix it. Bandwdith scores are related to FSB. You got 1920 with 133 and 2050 with 140. If you were able to run a 166FSB your scores would be more like 2400-2500. Also running with a single dimm vs two usually will raise scores. Also look again at the scores. For ddr ram you're fine. Its rdram which scores so highly.
You obviously aren't running your memory at 400mhz. I get low scores for DDR400(~2945 MB/s) and thats with an asus p4s533 and the ram is buyaib.com ********. I get ~2502 Mb/s@333mhz. Set your dividers and such.
I have scoured the bios for the 8k5a2, but I have found no area that mentions you can change the memory divider. It seems like the pentium IV mobos all have options like that, but no mention in my mobo manual either. Can anyone help?
I know the 8kha+ had 4/5 mem divider, but that was with a beta bios, if i recall correctly... Anyway, I got that kind of bandwidth with my duron @ like 155 fsb! Geezorz!!
There are no adjustable dividers on your mobo. They kick in automatically at 133 and then again at 166. Tbred wasn't answering your question or addressing your issues; just making comments of his ownQuote:
Originally posted by mealeyma
I have scoured the bios for the 8k5a2, but I have found no area that mentions you can change the memory divider. It seems like the pentium IV mobos all have options like that, but no mention in my mobo manual either. Can anyone help?
The reason you arent getting as much bandwith as you should is because the processor bus is at 133 or 140 or whatever you have it set at and the DDR bandwith is at 190 or 200 (380 or 400Mhz). For your processor to fully use the bandwith is to get the processor bus synchronus with each other. Unlock it and crank that FSB :D
Great info guys - I sure appreciate it! Everythings is much clearer now. I think it's time to unlock that sucker! :D
Unlocking's a good idea. With that mobo I'd be nice to shot for that magical 166FSB IMO. Then all your agp and pci cards fall back into spec. Unlocking can be challenging. Be patient with itQuote:
Originally posted by mealeyma
Great info guys - I sure appreciate it! Everythings is much clearer now. I think it's time to unlock that sucker! :D