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Author Topic: 68030 not running at 25Mhz  (Read 11619 times)

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Offline zipper

Re: 68030 not running at 25Mhz
« on: November 03, 2012, 10:14:18 PM »
Sysinfo mostly does educated guesses about the frequency - you need something more reliable.
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Offline zipper

Re: 68030 not running at 25Mhz
« Reply #1 on: November 03, 2012, 10:32:25 PM »
Somewhere a little below 5 Mips I think.
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Offline zipper

Re: 68030 not running at 25Mhz
« Reply #2 on: November 04, 2012, 08:41:04 PM »
Seems the CPU frequency is divided by 2 from the xtal - the manual  from amiga.resource tells it is 68030 @ 14.3 MHz. And from the pic in BBOAH seems there's another version of 33 MHz, with 66 MHz xtal.
« Last Edit: November 04, 2012, 08:48:40 PM by zipper »
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Offline zipper

Re: 68030 not running at 25Mhz
« Reply #3 on: November 04, 2012, 09:44:44 PM »
The manual tells you can clock the FPU separate with another osc (upto 33 MHz, perhaps more) and it's auto-sensed - but can't see any place in the pics to put it in.
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Offline zipper

Re: 68030 not running at 25Mhz
« Reply #4 on: November 06, 2012, 09:26:39 AM »
Does it run without the crystal (!).
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