Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!sdd.hp.com!usc!jarthur!nntp-server.caltech.edu!toddpw From: toddpw@nntp-server.caltech.edu (Todd P. Whitesel) Newsgroups: comp.sys.apple2 Subject: Re: ASIC-65816 News Message-ID: <1991Feb5.040929.24926@nntp-server.caltech.edu> Date: 5 Feb 91 04:09:29 GMT References: Organization: California Institute of Technology, Pasadena Lines: 28 jlevitsky@gnh-applesauce.cts.com (Joshua Levitsky) writes: >About that 20-25mhz... won't it slowly burn-out my equiptment? or anyone's >equiptment? I heard that's why you should not put the 13mhz chip in your >TransWarp GS. I was going to get the 13mhz, but my friend told me about the >hardware burn-out aso I decided not to. The 20+ chip won't have that problem. The burn-out problem is with WDC produced chips (currently, only WDC sells chips 'rated' for that speed) because the chips' operating voltage must be increased from 5 to 6 volts in order to ensure correct operation at the higher speed. The ASIC 65816 uses a different design/fabrication process than the WDC chips, and will be able to run at rated speed without heating problems. The support circuitry on a TWGS might get really warm running that fast (if it even can) but a Zip GS built to run that fast won't have those heat problems (the 8 mhz version runs so cool it's beautiful). >Another thing... with this new chip... will I be able to plug it in to my >TransWarp GS, or have to buy another accelerator card? Sure, you can use it with the TWGS, but the TWGS may not be able to support it properly past 12-13 mhz. The Zip GS is far better adapted to high speeds than the TWGS, and I am betting that (using the new chip) a 20 mhz Zip GS will be available far sooner than a 20 mhz TWGS will. Todd Whitesel toddpw @ tybalt.caltech.edu