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- Path: sparky!uunet!cis.ohio-state.edu!rutgers!cmcl2!adm!news
- From: lsr-vax!art@uunet.uu.net (Art Hays - PSTAFF)
- Newsgroups: comp.sys.sgi
- Subject: Re: Memory upgrades for R4000 Indigos
- Message-ID: <31535@adm.brl.mil>
- Date: 25 Jul 92 20:54:46 GMT
- Sender: news@adm.brl.mil
- Lines: 25
-
- Michael Portuesi <uunet!tweezers.esd.sgi.com!portuesi> writes:
-
- > Before the inevitable flames about "abandoning" the
- > Personal Iris line arrive, let me point out that
- > producing the 4D/35 was very difficult from both an
- > engineering and manufacturing standpoint. The R3000A
- > in the 4D/35 worked only with some unconventional hacks
- > to meet cooling requirements, and the electronics module
- > had to be redesigned to fit in the chassis. An R4000
- > upgrade would be frought with even more engineeering
- > problems. It would be difficult and costly for us to
- > manufacture.
-
- And yet, the 4D35 box is bigger than the Indigo box.
- Intuition suggests that something that works in a smaller box could also
- work in a bigger box.
-
- While we are on the subject, another 'unupgradeable' machine is the
- 4D85 (an R2k machine). We have three. I believe there is no in-chassis upgrade;
- only a trade-in is offered (if I'm wrong, I'd love to hear from someone).
- This is a machine that has a big backplane with VME slots in a case similar
- in size to the Crimson.
-
- Art Hays, Nat. Eye Institute, uunet!lsr-vax!art
- Nat. Institutes of Health, Bethesda, MD (301) 496-7143
-