sl195@cc.usu.edu (A banana is not a toy) (11/20/90)
I've finally got a serious question: Has anybody tried the 14MHz A500 hardware hack? (Using a D-FF to divide Agnus' 28MHz clock by two, and connecting it to the 68k's clock in?) From what I hear there's about a 70% increase in speed (not 100% due to the custom chips still cruising at 7MHz). I've got some fairly detailed instructions on doing so. I'm thinking about trying it, and was wondering if anybody else has done so and had the computer freak. -- All comments are my own, and many must be taken with a :-) =============================++++++++++++++++++++============================= | Demetrios Triandafilakos | James Knowles | "Remember, always remember,| | Shire of Cote du Ciel | BITNET: SL195@USU | my son -- a banana is not | | Principality of Artemesia | INTERNET: | a toy." | | Kingdom of Atenvelt | sl195@cc.usu.edu | - The Wise Guru | =============================++++++++++++++++++++============================= Be all that you can be - see your local SCA Knight Marshal now.
gfre@pawl.rpi.edu (gregory m stiegler) (11/21/90)
>Has anybody tried the 14MHz A500 hardware hack? (Using a D-FF to divide >Agnus' 28MHz clock by two, and connecting it to the 68k's clock in?) >From what I hear there's about a 70% increase in speed (not 100% due to >the custom chips still cruising at 7MHz). I've got some fairly detailed >instructions on doing so. Ok, first of all you are maybe looking at a 15%-30% increase. Second: This hack does not take into account the E-clock. Now while this may not cause too many problems on the 500 (I've only tried it on a 2000) it creates major chaos in a 2000 (especially if you have expansion cards). One other problem you may encounter is that, since it accelerates the E-clock, your drives will attempt to run at twice normal speed. Hard drives will function fine but unless you have a drive that can operate at this speed (I do), you won't even be able to boot the system. IF we can solve the E-clock problem I'll try to put the solution together and post it. --==Niemand==--