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Author Topic: 68030 not running at 25Mhz  (Read 11680 times)

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Offline BuzzBrain

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Re: 68030 not running at 25Mhz
« on: November 03, 2012, 09:09:52 PM »
I guess it divide the clock with 2. So the crystal may have been swapped. What is the speed on the cpu?
(Text on the top of the cpu)

If you have a 16mhz 030, you need a 30mhz crystal. If a 33mhz 030 use a 66mhz and so on.
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Offline BuzzBrain

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Re: 68030 not running at 25Mhz
« Reply #1 on: November 04, 2012, 01:18:26 PM »
Quote from: AmiDude;713818
Nonsense! That counts only for 68040 CPU's.


My bad!!
There is a picture of a proffessional 030 from Harmac Computertechnik on "the big book of amiga hardware" who have a 66mhz crystal. And the cpus (cpu/fpu) is 33mhz

Another picture shows a 16mhz card with a 030 20mhz cpu and a 33mhz fpu..with a 40mhz crystal.

Asume those boards is OC.

Sorry for the missunderstanding.
« Last Edit: November 04, 2012, 01:23:10 PM by BuzzBrain »
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------------------A M I G A----------------------
AmigaOne G3, 512MB Ram, 80GB HD, OS4.0
Pegasos II G4, 1GB Ram, 200GB HD MorphOS 2.2
A4000D PPC@233/060@50, 128MB Ram G-REX, Plus++
A4000T PPC@200/060@50, 128MB Ram Mediator, Plus++
Plus +++++++++++...
 
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