4-way DRAM interleave

[singtel]

what kind of ram can use 4-way DRAM interleave?
like a 1 sided 128mb pc-133 can enable this ?

 

[MichaelD]

It is the quality of the RAM that determines if you can use 4-way interleave. Any "good" ram should be able to do it. Size of the module (64/128/256/etc) is not the factor. What brand are we talking about. If you don't know the brand, what name is on the actual chips?

 

[MCS]

4 way interleave is a function of the motherboard not the RAM itself, but some sticks of RAM can become unstable when you have it turned on. If you have the function, and you have any decent make RAM that was bought in the last 18 months I would say you are safe. Just try it!

 

[Soccerman]

I was going to pass this thread by for some-reason (perhaps I'm being lazy?).

I don't know your answer, but I'll bump the thread for a good question!

PS, I've got 256 megs PC133 SDRAM, it's got chips on 2 sides (so it uses both banks in that slot), and I have 4 way interleaving enabled and running. So, you should at least be able to use 2 way interleaving.

 

[agg123456789]

hey all...actually i was wondering the same thing, however i just disabled the 4 way interleave because i assumed that it would lower my stability...... I am running some Mushkin BASIC PC133(EDIT: 2 128 mb dimms forgot to tell ya all that....)...nothing special, but it should be at least a little better than most generic....what do you all think? would it increase proformence grately?

thanks

agg123456789

 

[Phiberoptix]

or not.

I have some cheapo rams here that doesn´t work with 4 way interleave, 2 awy interleave, cas 2 , fast setting ...nothing. I thought that these would be good, as the modules are made by nec and the chip is produced by syncmax.

fortunately I just received a brand new 256mb crucial ram. It´s working like a charm @ cas 2 , turbo speed, 4 way interleave, everything. I could also make it run @ 140Mhz in Cas2 too.

 

[MCS]

Yes it increases performance greatly. Use Sisoft Sandra Memory Benchmark to compare the difference.

 

[agg123456789]

<<
fortunately I just received a brand new 256mb crucial ram. It´s working like a charm @ cas 2 , turbo speed, 4 way interleave, everything. I could also make it run @ 140Mhz in Cas2 too. >>



what is that turbo speed? i have seen it but i always assumed that it had something to do with latency.....and what would happen if i set my mushkin stuff to cas 2? even though it is rated to cas 3?

thanks..


agg123456789

 

[JJ8]

4-way must be supported by the chipset. However, as its name indicates, the memory must be composed of at least 4 banks of memory. For instance, if you have a 64mb chip thats 2x32, then you cannot run it as 4-way. But, if you have a 256 4x64 or 8x32, then you are all peachy. For most chips +128mb today you don't have to worry about having 4 banks, unless you buy high density 128mb at 2x64.