single side vs double side RAM

February 13, 2010 at 01:26:01
Specs: Windows XP, INTEL E4700/4Gb
I just bought a Gigabyte GA- EP41-UD3L mother board and i`v noticed that in order to have all the memory slots occupied, all modules must be SS (single side) The MO accepts a maximum of 8GB and has 4 slots. My question is: if i want in the future, to upgrade to 8GB of ram, is there any setting or bios update so that it accept four
DS (double side) modules? Right now i have 4 GB (2x 2GB Double side Kingmax DDR2 800). I have read on the net that there is a voltage difference in using SS vs DS
Thank you !

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February 13, 2010 at 01:38:17
go to manufacturers site
and see if there available upgrade for bios
i think it is impossible cause bios cannot change it even with
usually most of Gigabyte moth. x64 compatible

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February 13, 2010 at 05:15:43
I didn't see anything that says that you need to use SS memory. If you have 4 gigs in now and it's dd, all you have to do to max it out is add 4 more gigs of dd. When running dual channel mode, you should always match the ram specs including voltage for the best performance. If you know the specs on your current ram, buy the exact same ones. Name brand isn't as important as the voltage and timings. Unless you're running XP 64 bit or planning to use Win 7, save your money. XP 32 bit OS can't use more than 3 to 3.5 gigs of ram.

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February 13, 2010 at 08:21:42
Unfortunately i dont think i can add another 2 DS. On the motherboard manual the available configurations for the 4 slots are :
(DS/SS)--- (DS/SS)---
--- (DS/SS)--- (DS/SS)---
(SS) (SS) (SS) (SS)

So it has to be either all four SS or in pairs DD-DD or SS-SS but not mixed.Actually i bought this motherboard because i damaged my last one by mixing two SS modules with the DS wich it already had. The DS and SS should not be confused with DDR or dual channel. There is little information about this issue on the net but i have found that its crucial when you want to add more Gigs on the Ram. It has to do with the voltage or amperage of the modules. the SS modules are different than DS and its not just a matter of the side the chips are planted. Not every motherboard has this limitation. The problem is that there are no 2GB SS modules on the market. So if i want 8GB in the future, there must be either an bios update or i have to put 2 modules of 4Gb. (wich is more expensive for the moment at least)
This is something everyone should be carefull of when buying a new motherboard.

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