Subject: Re: question about the scsi controller on the 3000/300X
To: Nick <>
From: Ken Wellsch <>
List: port-alpha
Date: 01/26/2001 07:51:38
There appears to be a PROM value (or values) called


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)


-- Ken

Nick wrote:
> I see that the controller is an NCR 53C94.  Is this a fast/narrow
> controller?  Is it capable of 10 megabyte / second thru put?
> or just 5 megabytes / second?
> Thanks,
> Nick