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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: XDelusion on October 06, 2011, 04:54:54 AM

Title: Does it matter what model 68000 I put in 2000?
Post by: XDelusion on October 06, 2011, 04:54:54 AM
I asked this in another one of my threads, but I fear that that thread shall become forgotten and unanswered, so I'm asking again here in a new thread, yeaaahhhh!!! Mommy always said I should try something new.


Anyhow, I am going to replace the socket and CPU on my 2000. I notice that there are various model numbers for the 68000. Does it have to match the model number of the one I just pulled or will any do?
Title: Re: Does it matter what model 68000 I put in 2000?
Post by: mechy on October 06, 2011, 05:12:59 AM
Quote from: XDelusion;662633
I asked this in another one of my threads, but I fear that that thread shall become forgotten and unanswered, so I'm asking again here in a new thread, yeaaahhhh!!! Mommy always said I should try something new.


Anyhow, I am going to replace the socket and CPU on my 2000. I notice that there are various model numbers for the 68000. Does it have to match the model number of the one I just pulled or will any do?


As long as its 64 pin DIP and 8mhz or better,your fine. speed is usually a -8 or -12 etc on the end of the part #.. you can even use a 68010.

Mech
Title: Re: Does it matter what model 68000 I put in 2000?
Post by: bbond007 on October 06, 2011, 05:29:11 AM
Quote from: mechy;662637
As long as its 64 pin DIP and 8mhz or better,your fine. speed is usually a -8 or -12 etc on the end of the part #.. you can even use a 68010.

Mech


if you use WHDload then you might consider the 68010. That will allow you to exit the game and go back to WB without rebooting. Very worth it.
Title: Re: Does it matter what model 68000 I put in 2000?
Post by: LaserBack on October 06, 2011, 09:09:40 AM
Quote from: bbond007;662639
if you use WHDload then you might consider the 68010. That will allow you to exit the game and go back to WB without rebooting. Very worth it.


yes but some old games don't works on the 68010 and in others it will cause problems or gfx corruption because VBR
sincerely I do not recommend a 68010 if the main purpose of the computer is to play games
Title: Re: Does it matter what model 68000 I put in 2000?
Post by: LaserBack on October 06, 2011, 09:15:48 AM
btw,

you can found a 68000 12.5mhz on any megadrive and you can purchase it for a few bucks to dismantle and make experiments
and
if  my numbers are correct using the megadrive 68000 you will get a 75% speed boost on the A2000 or the A500
Title: Re: Does it matter what model 68000 I put in 2000?
Post by: zipper on October 06, 2011, 09:26:40 AM
That's bull, as the processor runs @7+ MHz not depending whatever is written on it.
Title: Re: Does it matter what model 68000 I put in 2000?
Post by: LaserBack on October 06, 2011, 09:38:14 AM
Quote from: zipper;662660
That's bull, as the processor runs @7+ MHz not depending whatever is written on it.


so it is clocked by the main 28 mhz crystal of the motherboard?
and what about a 14.x mhz 68000?
Title: Re: Does it matter what model 68000 I put in 2000?
Post by: spirantho on October 06, 2011, 09:50:27 AM
The rating of the CPU says how fast it can run safely, not how fast it will run. It still gets its sync from the 28MHz clock divided, so will run at precisely the same speed (and no, you can't change the clock as it'd naff up the entire chipset bus). You need a special clock-doubled 68000 to run at 14MHz.
Title: Re: Does it matter what model 68000 I put in 2000?
Post by: XDelusion on October 06, 2011, 09:33:06 PM
Hmm OK.

Well I got my 64 Pin socket in the mail today...

It was a smaller version than I thought I'd ordered. The search continues. :/
Title: Re: Does it matter what model 68000 I put in 2000?
Post by: spaceman88 on October 06, 2011, 11:57:37 PM
Quote from: XDelusion;662751
Hmm OK.

Well I got my 64 Pin socket in the mail today...

It was a smaller version than I thought I'd ordered. The search continues. :/


Yes, I did the same thing one time. There are at least two different pin spacings.
Title: Re: Does it matter what model 68000 I put in 2000?
Post by: XDelusion on October 07, 2011, 12:39:49 AM
Quote from: spaceman88;662770
Yes, I did the same thing one time. There are at least two different pin spacings.


Is there a specific name for the type I want?
Title: Re: Does it matter what model 68000 I put in 2000?
Post by: spaceman88 on October 07, 2011, 02:33:28 AM
Quote from: XDelusion;662771
Is there a specific name for the type I want?


I can't remember the correct spacing. But I think the socket on Ebay being sold by "acpsurplus" that is 3 1/4" by 1 1/16" is correct. I don't have a 68000 in front of me so make sure measure before you order.