hitch@buhub.bradley.edu (Douglas Hanna) (02/04/91)
Hello, I was wondering if someone out there in net land could give me a hand. I'v got a stock Amiga 2000HD and I'm looking at upgrading the processor in it. I dont have the ca$h flow to purchase a GVP or anything like that. What I was wondering: is it possible to buy a faster 68K processor (around 16MHz or so) and replacing the stock (~7MHz) processor to get a little extra speed. Is there a problem with this? I'm not expecting this to "be so fast it will strip the paint off the walls" just a little more HP thats all. Is there any problem with timeing crystals, chips, etc. Thanks In Advance (TIA) -- |><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><| |<>| Douglas Hanna Bradley University |<>| |><| HITCHhiker (042) hitch@buhub.bradley.edu |><| |<>| "All disclamers, standard and nonstandard apply" |<>| |><| "Another Brilliant mind destroyed by the rigors of |><| |<>| higher education" |<>| |><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><|
lkoop@pnet01.cts.com (Lamonte Koop) (02/06/91)
bartonr@eecs.cs.pdx.edu (bartonr) writes: >In article <1991Feb3.222342.29920@bradley.bradley.edu> hitch@buhub.bradley.edu (Douglas Hanna) writes: >> What I was wondering: is it possible to buy a faster 68K processor >> (around 16MHz or so) and replacing the stock (~7MHz) processor > > Yes, this should be a simple drop-in replacement. Whoa! Not quite so fast. Sure, you can drop a 68000 rated at, say 12-16MHz into the CPU socket, but that will not speed anything up. The chip will only run as fast as the input clock, which you do state below (in a fashion). I belive what was originally wanted was an answer to speeding up the system in such a fashion. > >> Is there a problem with this? > > The 16 MHz 68000 may have a minimum required clock frequency of 8 MHz or so, >meaning it may not operate reliably at the 7.16 MHz frequency you will be >running it at. Besides that, dropping in a 16MHz rated 68000 into the system is a waste of money if you simply clock it at 7.15MHz (system clock norm). As many here have seen posts about, upping the speed of the 68000 through a faster clock rate has been attempted in many forms with the "14MHz Hack"...such methods have occasionally met with success...and many times not. LaMonte Koop Internet: lkoop@pnet01.cts.com ARPA: crash!pnet01!lkoop@nosc.mil UUCP: {hplabs!hp-sdd ucsd nosc}!crash!pnet01!lkoop When informed he exibited a reaction similar to pure Na with H2O. Put simply, the man blew up.