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Author Topic: 68060 and the 68882  (Read 15771 times)

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Offline alexh

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Re: 68060 and the 68882
« on: April 21, 2011, 08:24:16 AM »
EC processors don't appear to be any more overclockable than their full counterparts for the same mask varient.
 

Offline alexh

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Re: 68060 and the 68882
« Reply #1 on: April 21, 2011, 08:55:14 AM »
Quote from: bloodline;632726
Though, with missing/inactive hardware they should disipate less heat and for any given cooling solution you might be able to get a higher clock? No?
Maybe. Depends :

a) If an integrated FPU uses clock gating when not in use. This technique was used even back then.

b) Depends if you have a REAL EC/LC chip. i.e. Mask G59Y.

Most EC/LC parts I've seen used in the Amiga are actually full 060's which failed quality control in the MMU/FPU and are marked up with a different designator on the package. These will output the same heat as full 060's

A lot of EC/LC parts were sold as full 060 parts by wheeler-dealers trying to make a quick buck. Test it for a bit and if it works sell it as a full one. A-kin to opening up gfx pipelines on gfx cards.