Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!cis.ohio-state.edu!ucbvax!gnh-starport.cts.com!whitewolf From: whitewolf@gnh-starport.cts.com (Tae Song) Newsgroups: comp.sys.apple2 Subject: Re: zip cpu Message-ID: Date: 13 Jun 91 08:18:08 GMT Sender: daemon@ucbvax.BERKELEY.EDU Distribution: world Organization: The Internet Lines: 17 Honda Hwang writes... | is the cpu on ZipGS the same kind as TWGS..? I mean made by WDC. |if so does that mean I can get a 9-10mhz 65816 that is more readly available |now and plug it in my TWGS (+4x mhz clock crystal) for an upgrade..? Yes, the Zip and the TWGS uses the same 65816 CPU. The 9+Mhz CPUs are called "shmoo" parts, you can get them to run faster by increasing the stanard voltage (5v) to something like 5.5, but not 6v (which, BTW well destroy the CPU)... you just have to keep the voltage under 6v. The Zip has all the connections and places to solder parts do you can supply a ~5.5v to the CPU. You can send your Zip back to Zip and have them upgraded. Upgrading is pretty hair if you don't know what you are doing, especially for the CPU. INET: whitewolf@gnh-starport.cts.com UUCP: crash!gnh-starport!whitewolf ARPA: crash!gnh-starport!whitewolf@nosc.mil