Re: Apple II accelerator card.

[mrvermin@io.org]

In <401jmr$3qm@crl5.crl.com>, raymac@crl.com (Raymond D. McAnally) writes:

>What you may have there is the old "Speed Demon" card from M c T. They 
>were the fore runner to Zip Technologies. What may be happening is that 
>you are using an Apple High Speed SCSI card which uses DMA to speed up 
>it's processing. If so, turn off the DMA and try it again. The card will 
>now function like the older Rev. C SCSI card which is a little slower. 
>There are no accelerators that were produced that were compatible with a 
>DMA SCSI card. I believe the reason was because they were making use of 
>it themselves.
>-- 
 
 I find this strange as both the Zip 9/64 as well as the Transwarp work perfectly
with the Apple DMA High Speed SCSI Card, with the DMA turned on....

 maybe you are only talking about the card in question that this person has. It 
predates the Zip so it was before the DMA HS SCSI Card was released. However
all cards since then work with the DMA HS SCSI card just fine...
 
 Joel Blass
mrvermin@io.org