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Old 16 October 2021, 03:45   #11
Lektroid
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Join Date: Aug 2020
Location: UK
Posts: 122
Quote:
Originally Posted by Jpor View Post
The Apollo and Blizzard 040 cards use a 0.5 clock divider against the CPU. So 50mhz / 2 = 25mhz.

So bus runs at 50mhz but the CPU only runs at half that. There were Apollo 040’s at 40mhz running 80mhz crystals. Have owned both.

It currently has a 56MHz installed so it will surely struggle to divide down. I'll order some 50MHz crystals from ebay now. Thanks for the info
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