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Hello,

On Dec 10, 2006, at 07:26, Martin Husemann wrote:

> Please excuse if this are stupid questions, I don't know nothing about 
> mac
> hardware. I did not expect this Q660 to be a blinding fast machine, 
> but I
> am a bit disapointed with the SCSI performance:
>
> esp0 at obio0 addr 0: address 0x22a000: NCR53C96, 25MHz, SCSI ID 7
> scsibus0 at esp0: 8 targets, 8 luns per target
> [..]
> sd1 at scsibus0 target 4 lun 0: <IBM, DNES-309170W, SA30> disk fixed
> sd1: 8748 MB, 11474 cyl, 5 head, 312 sec, 512 bytes/sect x 17916240 
> sectors
> sd1: async, 8-bit transfers, tagged queueing
>
> Is the 8-bit transfers a limitation of this esp variant, or the disk?

I don't know of any 68k-Mac with 16bit SCSI onboard and the NCR53C96 is 
an 8bit part ( should sound kind of familiar to you ;) )
Besides that, there is no real DMA which doesn't exactly help disk 
performance.

> Finding another disk and replacing the internal one should be easy, 
> but if
> it's not worth the effort, I'd just leave it alone.

There's nothing wrong with the disk.

> intvid0 at obio0 @ 50100800: CIVIC video subsystem
> intvid0: 640 x 480, monochrome
> macfb0 at intvid0
>
> The display is pretty colorfull in MacOS - is the "monochrome" here 
> intentional
> (maybe for performance reasons)?

I think the loader lets you choose which video mode to use.

have fun
Michael
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