64GB (8x8GB) DDR2 FB Fully Buffered PC2-5300F 667MHz Memory RAM Upgrade for Dell PowerEdge 2950
8GB DIMMs only work in the Dell 2950 III (Gen 3) Server
Only Gen III servers accept 8GB DIMMs. How to check my generation? Pull out your service tag. There will be roman numerals located on the tag. Your system needs to be “III” in order to work with 64GB of RAM.
“I” and “II” max out at 32GB RAM with 4GB DIMMs. Link below to eBay listing for 32GB kit.