tom@astro.as.arizona.edu (Thomas J. Trebisky) (11/15/90)
First, is there a newsgroup more appropriate than this for questions about the Rainbow? Second, does anyone have experiences, pro or con, about replacing the 8088 with the more efficient V20 processor. I have heard a variety of groundless apprehensions, but I am hoping someone will respond with something like, "yes, I have run one for years and it works great."
slsw2@cc.usu.edu (11/18/90)
In article <453@organpipe.UUCP>, tom@astro.as.arizona.edu (Thomas J. Trebisky) writes: > First, is there a newsgroup more appropriate than this for questions > about the Rainbow? Try comp.sys.dec.micro. > Second, does anyone have experiences, pro or con, about replacing the 8088 > with the more efficient V20 processor. > I have heard a variety of groundless apprehensions, but I am hoping someone > will respond with something like, "yes, I have run one for years and it works > great." This is actually a rather popular thing to do to a Rainbow. I just put one in mine a couple of days ago (sorry, I can't claim years), but lots of people have done it. The only caveat is that when you do it your Rainbow will no longer pass its power-on diagnostics. However, I came across this on comp.sys.dec.micro the other day (I've not tried it yet, so I can't say what it is or if it works): >> Date: 10-23-90 (10:26) >> To: ALL >> Subject: V20 EPROM MODS >> From: FRANK MALLORY >> >> Carl Houseman has uploaded his article describing how to modify your >> boot ROM to adapt it to the NEC V20 processor. It's available >> here as V20ARTIC.ZIP, in file area 25. >> * Origin: Silver Bullet - Silver Spring, Md. - 301-622-2247 (1:109/417) If you do look at this article, I'd be interesting in knowing what it says (301's a long-distance call from 801). -- =============================================================================== Roger Ivie 35 S 300 W Logan, Ut. 84321 (801) 752-8633 ===============================================================================