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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: joekster on July 20, 2007, 02:09:03 PM

Title: 12mhz 68000 at 14.3mhz???
Post by: joekster on July 20, 2007, 02:09:03 PM

I can get hold of a 12mhz 68000, and was thinking of doing the 14.32mhz hack with it. I am a bit concerned that this might be too much of an overclock for that chip. Has anyone ever tried this? I don't really want to do all the work if there is not a high probability for sucess...

Title: Re: 12mhz 68000 at 14.3mhz???
Post by: HellCoder on July 20, 2007, 02:11:49 PM

If I was you I wouldn't bother. Is there a need for it?

Title: Re: 12mhz 68000 at 14.3mhz???
Post by: DonnyEMU on July 20, 2007, 03:37:47 PM

It doesn't help because the bus still runs at the lower speed I did this and added a 68881 chip a long time ago with the special libraries. I saw a 2 to 3% increase in speed overall. It wasn't worth it. It was a fun project to get to know the machine though.

Title: Re: 12mhz 68000 at 14.3mhz???
Post by: DamageX on July 21, 2007, 09:08:17 AM

it'll probably work... there were some guys overclocking Gennys from 7.67MHz to 13.5MHz and some chips even went 20+MHz

Title: Re: 12mhz 68000 at 14.3mhz???
Post by: meega on July 21, 2007, 11:03:47 AM

I gather that replacing the 68000 with a 68010 can give a worthwhile speed boost for some processor intensive operations - and you only need to pull the 68000 from its socket and push the 68010 in instead.

Software-wise, run Decigel or some such, and then most things should work fine.