Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!tut.cis.ohio-state.edu!att!pacbell.com!ucsd!ucbvax!MSUS1.BITNET!WNIMHACK%WSU.DECNET From: WNIMHACK%WSU.DECNET@MSUS1.BITNET ("Bruce R. Mitchell / WNIMHACK%WSU.DECNET@MSUS1.BITNET") Newsgroups: comp.sys.dec.micro Subject: Re: Mod Pro 350 to a Pro 380? Message-ID: Date: 23 Dec 90 01:11:00 GMT Sender: daemon@ucbvax.BERKELEY.EDU Organization: The Internet Lines: 21 On 22-Dec, Billy D'Augustine inquires: > Is there any possible way of doing any kinda modification to my Pro 350 > to turn it into a Pro 380? Answer: No. The F11 and J11 chips are wildly different. If you could scrounge a Pro380 system board, you could probably replace the 350 system board with that. IMHO, having a 380 doesn't give much additional return. Oh sure, the chip is much more capable than the F11, but with super mode, I/D space, and cache permanently turned off, what real gain is there other than a little bit of CPU speed? I find the stupid disk controller in my 380 to be more of a problem in throttling the performance of the system. BTW, DEC did once put up genuine RSX-11M-Plus on the 380. The conditionals are still there in the Exec source to make it work. Haven't got around to trying it yet, but one of these days ...