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Date Posted: 22:06:51 07/07/01 Sat
Author: Saikee WONG
Subject: How to overclock Presto PPC ?

I had just overclocked the LC630 with the Apple PPC card. The
result is just as the clock-chip home page says. Before the mod,
I ran Tattle, it says
for 68040
CPU speed 33MHz
bus speed 33MHz
for 601
CPU speed 66MHz (Sorry, I forgot to check the bus speed)

After the mod,
for 68040
CPU speed 40.??MHz
bus speed 33MHz
for 601
CPU speed 79.99MHz
bus speed 4.11MHz

I think the overclock for LC630 is beautiful because when I overclock
the 040, it automatically overclock the 601 too (but only at 80MHz).

It does seem that the 68040 is running faster than the 601. And I
remember years ago when I tested the Presto PPC (601 at 100MHz), the
speed was comparable to the 68040 at 40MHz.

I tried to simply insert the Presto PPC card to the same LC630, it
doesn't boot up with PPC (it can boot with 040).

Anyone has idea about how to overclock the Presto PPC card to
120MHz for LC575 and LC630 ?

SK

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