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Author Topic: clock timing on 68030 processors  (Read 3107 times)

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Offline TheBilgeRatTopic starter

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clock timing on 68030 processors
« on: January 15, 2011, 08:54:07 PM »
I see different crystals for sale all the time for changing FPU and processor timing.  Are there specific processors (lets just look as the 030s) for specific speeds, or is it all just set by the crystal?  Is it as simple as pulling your 25 Mhz crystal for a 50?  Or does it depend on application (ie expansion card vs standard on the mobo)?
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Offline TheBilgeRatTopic starter

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Re: clock timing on 68030 processors
« Reply #1 on: January 15, 2011, 09:21:43 PM »
But if you had both parts (50Mhz crystal, 50 Mhz '030) you could conceivably upgrade a processor on am expansion card?  Or are there other things which have to be factored in?
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Offline TheBilgeRatTopic starter

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Re: clock timing on 68030 processors
« Reply #2 on: January 15, 2011, 11:09:20 PM »
So...moral of the story is do homework on an expansion card before purchase and if you want speed, spend the extra up front. :D
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Offline TheBilgeRatTopic starter

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Re: clock timing on 68030 processors
« Reply #3 on: January 16, 2011, 12:40:25 AM »
I am trying to figure out the best way to get my A2000 a boost in speed.  I want to add the following soon to it when I get some play money (and listed by my current priority):

1.  Indivision ECS.  the monitor I got from runequester is starting to not hold brightness/contrast, so it would be nice for to have other viewing options.
2.  MiniMegi - who doesn't need 2M chip ram? :D
3.  Accelerator goes here, because otherwise:
4.  Can't use Deneb (AFAIK) on a stock 68000

I find the 030 accelerators in the 25Mhz range more frequently than the ones I would like.  Also there are a couple of designs to choose from (ones that plugin to the processor slot, ones that plug into a zorro slot etc.)
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Offline TheBilgeRatTopic starter

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Re: clock timing on 68030 processors
« Reply #4 on: January 16, 2011, 01:48:27 AM »
Quote from: countzero;606960
You mean the processor SOCKET and processor SLOT. Processor slot is different to zorro slots. Technically a slot board and socket board are not superior to one another.

yes, exactly.  And that is good to know!
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Offline TheBilgeRatTopic starter

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Re: clock timing on 68030 processors
« Reply #5 on: January 16, 2011, 04:08:10 AM »
Quote from: runequester;606972
Depending on your end goals, an 030 is not a bad way to go at all. Very compatible software-wise and you can find them for less than a farm :)

Sad to hear about the monitor.
If you got a spare hundred bucks, this works great
http://www.ambery.com/rgbcgatovgac.html
though its not significantly cheaper than the Indivision ECS and those appear to still be in stock.

From what I gather, the indivision may give a sharper image than an external scan doubler, but I've also seen a fair number of people have a hard time with them.

it's all good!  I won't discard it- I just need a backup plan while I try to get it back up to speed :D
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