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Author Topic: New A2000  (Read 7965 times)

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Offline Motormouth

Re: New A2000
« on: April 30, 2012, 02:33:28 AM »
Quote from: k4lmp;691132
Wow, this board is GREAT!  Darrin, thanks for the tip.  I tried it and found out that the supra board had also came out during shipping.  Memory is kinda confusing, though:

via showconfig-

chip ram=1meg
fast ram=8meg

accelerator=2meg
scsi card=2meg
ram board (unidentified)=4meg  These two are on the one supra card.
ram board (unidentified)=2meg

Workbench shows:

9meg graphics, and 8meg other.

This kinda confuses me, as I see 10meg total, but the total chip plus fast is only showing a total of 9meg.  I probably just don't understand how  it works.  Could it be a version 2.05 issue, not supporting the 10meg total?

Thanks,
Jeff

Try using sysinfo (on aminet) or AIBB to look at your memory configuration
You should see something like:
Chip ram
Fast ram
32bit Fast ram

As others have said the amiga only has 8 megs of 16 bit addressable space.

but one can have significally more 32 bit ram (example in the a3000 and a4000 one can have 16 megs on board, 128 meg from the fast processor slot and 1 gig in the zorro III slots)

Also it will help you determine if the 32 bit fast ram is mapped into the 16 bit ram configuration space.   I cannot remember it this is a problem with the A2630 or not but is certainly the case for other accelerators.  One would prefer having the 32 bit memory outside the 16 bit space. ie look at the memory addresses.

Also the 2630 allow for 4 megs of ram.  If you can find some 256kbit x 4 zips around to fill up your 2630, that would be helpful.  I know mechy (ie mechware) is selling 1Mbit x 4 zips, maybe he has some 256kbit x 4 around