[QUOTE="Buzby"] I want to stuff some more ram in the pc. However, I'm confused [1]. I've got (according to CPU-Z utility) PC800 (400mhz) RDRam - I've had a look round and can't seem to match this up with any of the techno babble on offer - what should I be looking for?[/QUOTE] I did this late last year, upgrading a machine with 2 x 128Mb of PC800 RAMBUS by adding 2 x 256Mb of the same. Cost me ?75 in total from eBay which was nearly half the nearest price I could find for new RAM from online sources. Does the job so I'm happy enough. Here's an example auction: [URL]http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&category=172&item=673935[/URL] 8473&rd=1 You need to keep in mind that you must add the memory in matched pairs of RIMMs, plus mixing ECC and non-ECC RAM isn't recommended.