Amiga.org

Amiga computer related discussion => Amiga Marketplace => Topic started by: feanor76 on June 11, 2010, 10:49:19 PM

Title: AMIGA CPU ACCELERATOR 16mhz + 20mhz FPU
Post by: feanor76 on June 11, 2010, 10:49:19 PM
listed on ebay http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=130399762620&ssPageName=STRK:MESELX:IT
Title: Re: AMIGA CPU ACCELERATOR 16mhz + 20mhz FPU
Post by: gertsy on June 12, 2010, 04:04:08 AM
Quote from: feanor76;564179
listed on ebay http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=130399762620&ssPageName=STRK:MESELX:IT


Amiga or Atari.  DTS ?
Title: Re: AMIGA CPU ACCELERATOR 16mhz + 20mhz FPU
Post by: feanor76 on June 13, 2010, 10:37:07 AM
whatdoyou mean dts?
Title: Re: AMIGA CPU ACCELERATOR 16mhz + 20mhz FPU
Post by: Amiga_Nut on June 13, 2010, 11:29:10 AM
Quote from: gertsy;564226
Amiga or Atari.  DTS ?


I may be responsible for that after stating some CPU doublers for ST or Amiga can be used on both possibly. It isn't unfeasible and technically very similar boards for both machines.

However it depends on the design and you would probably need to replace the 14mhz clock crystal with a 16mhz one for the ST matching 200% of the host machine's original speed of 68000.

Probably best to put this as an advisory caution on your ebay auction incase somebody thinks they can literally just plug it into an ST with no changes at all :)

PS did you ever get the 4mb trapdoor expansion on the A500 to actually show 4mb total RAM on the workbench screen as opposed to 2.5mb in the pictures before?
Title: Re: AMIGA CPU ACCELERATOR 16mhz + 20mhz FPU
Post by: tone007 on June 13, 2010, 11:35:54 AM
That particular accelerator doesn't seem to need a crystal.
Title: Re: AMIGA CPU ACCELERATOR 16mhz + 20mhz FPU
Post by: feanor76 on June 13, 2010, 03:55:32 PM
PS did you ever get the 4mb trapdoor expansion on the A500 to actually show 4mb total RAM on the workbench screen as opposed to 2.5mb in the pictures before?[/QUOTE]


no i didnt i the baseboard is 'upto 4mb' so i presume my my trapdoor ram is only 1.5mb