SCSI CF slower than IDE CF...Why?

[Damion]

Definitely check your setup, speed should be near the theoretical max of the controller (and up to the CF card transfer limit).

[Damion]

Sandman wrote:
Ok, here is what I got.

WarpEngine set to no delay, no LUN scan, 100ns sychronous

Synchronous jumper might be set on the WarpEngine, but you also need to use something like HDInstTools to set the synchronous flag on the RDB of the CF card.

[Damion]

Sandman wrote:
I am starting to think that the majority of the problem is with the CF->IDE adapter as it was a inexpensive one and I know that it doesn't do DMA.

That could definitely be a problem! Technically, my understanding is that the Acard handles DMA with the SCSI controller, therefore whether or not the CF adapter is wired for DMA should be of no consequence. However, if I disable the DMA jumpers on my CF adapter, the A2K won't boot with either an old GVP 2000 HC+8 controller, nor the TekMagic. On the A1200 (no DMA), the systen operates the exact same regardless of the DMA jumper.

With a DMA capable CF adapter and Sandisk Ultra II cards, SysInfo speed is around 9.5 MB/sec on the TekMagic. I'd say try another adapter first, I believe even most of the cheap ones are wired for DMA nowadays.