DDR memory voltage

nicknick109

Looking to upgrade the memory and have seen Igb @ £85 or £58 and 512 @£47 or £30. The onle spec difference I can see is the voltage, the expensive ones operate at 2.6v the cheaper ones at 3.3v can this be a problem?
W/XP Shuttle AK32A mob don't play anything more than flight sims.Am running 512 SDR at the moment.Not sure if I could included the suppliers name so have left it out. Thanks any help

T4i

I could be completely wrong here but I thought SDR ran @ 3.3v and DDR ran at 2.7v.

Can you post the links to the webpages you are looking at for your RAM?

Are your current RAM's 184 or 168 Pin?

Click to scan your system > http://www.crucial.com/systemscanner/

T4i

Here is your motherboard

http://global.shuttle.com/Product/MotherBoard/mbd_Spec.asp?M_id=22

It can take 2 x DDR and 2x SDR.

Taken from here http://pcworld.about.com/news/Apr072004id115574.htm

'You can't mix SDRAM and DDR modules, though. They operate at different voltages and communicate with the system in different ways. Motherboards are designed for either one or the other'

I'd just get another stick of SDRAM (3.3v)

nicknick109

T4i,
thanks for your help. Play.com are offering the Igb @£58
Crucial @£85
At the moment I have both the sdr slots filled with 256x2 but if I remove them and use the DDR slots I can go up to 2gb
Bit concerned about the heat generated
This spec copied from play.com
1GB
Compatible with PC3200 DDR systems
184pin for desktops
Lifetime Warranty
CL2.5
3.3V Unbuffered
Like you thought they operated at 2.6

nicknick109

T4i
just read the PC world article thanks for that. The information in that creates another problem as I have a mobile rack (slide in trays one with XP the other with W98 SE) I note that 98SE will only operate up to 512.

T4i

Buy DDR and sell your SDRAM on ebay. Won't get alot for them but you may see some sort of return.

As for 98SE, there is a workaround for more than 512MB installed..

See here, http://www.techspot.com/vb/showpost.php?p=3024&postcount=3

nicknick109

T4i,
many thanks for the time spent helping any more thoughts on the voltage 3.3 @play.com or 2.6/7 Crucial

T4i

Firstly you need to deciede on SDRAM or DDR.

You have alreay filled your SDRAM slots? So you can either replace ur current SDRAM with larger capacity ones OR scrap your current SDRAM and buy some DDR.

You cant mix SDRAM and DDR.