Subject: Re: question about the scsi controller on the 3000/300X
To: Ken Wellsch <kwellsch@tampabay.rr.com>
From: Nick <nmanisca@vt.edu>
List: port-alpha
Date: 01/26/2001 08:53:36
On Fri, Jan 26, 2001 at 07:51:38AM -0500, Ken Wellsch wrote:
> There appears to be a PROM value (or values) called
> 
> 	FAST_SCSI_A and FAST_SCSI_B
> 
> that when set to "ON" (rather than "OFF") does what the tag implies
> I guess.
> 
> I don't own a 3k/300 box so I don't know for sure.
> 
> Depending what the interface oscillator is, that I think affects
> the top speed (e.g. my VAX 4k/90A also has a 53C94 but uses a 25MHz
> osc. so 6.25MHz is the top sync rate I think, i.e. 1/4 of osc. value)

Great.  I will see if I can set this PROM variable and see if it
allows faster speeds.

Thanks,
Nick