If I run 4 sticks in a 939 setup will I always lose 1t?

aka1nas

Diamond Member
Aug 30, 2001
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Hi all,
I think I am going to go with the MSI Neo Plat 2 and a 3000+ winchester for my upcoming upgrade. I have 4 512MB sticks of PC2700 that I could use on this rig. I have heard about the dropping to DDR333 with 4 sticks before and also that you will lose 1t command rate. Is it still possible to lower the clockspeed of the RAM and maintain 1t? I don't know if this RAM will even hit 200Mhz yet and the A64 won't need all that bandwith too much in a dual channel config. Anyone with experience in this matter?
 

res0n0xg

Banned
Feb 22, 2004
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from what i hear it'll be forced to run at 333mhz fsb because the mem controller on the cpu can't handle anything more and you will also almost defnately run in 2T command rate. going with 4 sticks of ram on the winchesters is just not a good idea. sell all 4 of those for like 150 bucks and buy some pretty decent 512 sticks.
 

billwinkle

Member
Mar 3, 2005
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your memory is only ddr333, so you are not going to get very far with this board. I think you need ddr400 to run at 1:1 at stock 200 bus speed.
 

aka1nas

Diamond Member
Aug 30, 2001
4,335
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From what I have been reading it doesn't really matter if I run the RAM asynch with a divider. If I drop the speed enough do you think I will be able to do 1T or is it completely impossible with a winchester?
 

thriemus

Senior member
Mar 2, 2005
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The cpu memory controller cant handle 4 sticks at 1T, but you can run higher than ddr333 with 4 sticks (see sig below).
 

Sentential

Senior member
Feb 28, 2005
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This issue is what AMD addressed in the new E0 cores. You *can* run 1T just not at DDR400. So long as you keep it at 333 it should work *ok* but thats not what you are looking for I'd imagine.

As I said before, AMD revamped the memory controller to support both higher density RAM and more of it to address this very issue. if you are looking to get anywhere on 4 dimms you need to get an E0 or higher density RAM