There seems to be no identification markings on the DSIMM cards. I know they come in 4Meg and 16Meg sizes (at least). I have two kinds of cards. One has all 18 memory DIPs on one side. The other has ten on one side and eight on the other. The SUN Service Manuals give not hint on identifying anything. (Even the model of the whole unit as far as I can figure.) Ken ----- Original Message ----- From: Ken Jones To: wlug@mail.wlug.org Cc: John Stoffel Sent: Sunday, May 09, 2010 2:18 PM Subject: OMG this thing was expensive Hello again, I've finally gotten around to fixing my SPARC ULTRA 1 machine. It's cpu fan is fried. I have a SPARC ULTRA 1 CREATOR that works with UBUNTU linux but I never got X-WINDOWS working on it. The working SPARC has been my home file server for all these many years. It had Aurora Linux with X all working fine. I figured I would do some swapping. Although the outsides are identical the two machines differ inside. The CREATOR has no cpu fan - just cooling fins. Good, I guess. I had no Service Manuals for either machine so I went to Wikipedia. It has the manuals. It also said, "The Ultra 1 Creator3D 170E launched in November 1995 with a list price of US$27,995." WOW!! QUESTION: If I move from the ULTRA1 to the ULTRA1 CREATOR the SIMMs in bank one and the hard drive should everything come up per before the crash? Thanks for thinking about this. Twenty Seven Thousand Bucks WOW!! Ken ======= Email scanned by PC Tools - No viruses or spyware found. (Email Guard: 7.0.0.18, Virus/Spyware Database: 6.14950) http://www.pctools.com/ =======