Posted 04 May 2009 - 04:26 PM
Your Dimension 8100 uses "RDRAM" AKA "Rambus" memory.
RDRAM must be installed in matched pairs to work.
" two with Topshiba-manufactured metal-encased components and two with The Dell label and no components. All of the 1GB upgrade kits that I find on the web are 256x4 and look like the Toshiba cards I already have. I will need to replace the two Dell cards with the Toshiba-style cards to get to 1GB. Will my Dell work with the Dell cards removed? "
You can use all 4 memory slots as long as the memory is installed in matched sets.
You don't have to replace the 2 already installed.
All you need is 2 of the same.
[ PC800 RDRAM 45ns ]
You need 2 X 256MB = 512MB .
BTW, Rambus memory is probably the most expensive memory you can buy.
"I will need to replace the two Dell cards"
If you have 2 "blank" cards in memory slots those are "cotinuity" cards.
They are neccessary to complete the memory circuit when the slots they are in don't have memory installed.
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