Help with memory-upgrade please

[MarchFirst]

Guys, little bit of help needed here. I bought my 64 MB ram from this crucial.com link. This works fine and now I want to upgrade to 256. In order to do that which one do I need to by from this link
pc100128 or pc133128 . Can someone please help me?

 

[corkyg]

One works with a PC100 bus and the other with a PC133 bus speed. The 133 is backward compatible, so it would have a longer life utility for you.

The basic question is . . . what bus speed does your M/B run at? If it is 66 MHGz, then you don't want either one of these.

 

[MarchFirst]

To day I this some where.
"Another note about XPS D systems, although not processor-related, it comes up a lot so I thought I'd mention it. This system is normally supposed to use PC66 DIMMs for memory. However, the newer PC100 modules are often cheaper now despite having higher speed capability. For PC100 memory to work on these machines, you must update to BIOS version A09, available here. Before upgrading, be sure to read the two readme files included with the BIOS file. Note that there will be no performance benefit to using PC100 memory on this system, because it will only be running at 66 MHz anyway."

thankslink