Digital BW, The Print

Thanks much for the information.  If it is correct that XP will assign up to
2gb of ram to Photoshop, then it appears that 4gb total is indicated.  2 gb
would preserve the speed, per your explanation, but result in less than 2 gb
being assigned to Photoshop.  (My question was probably OT, but I'm
constantly impressed with the amount of practical knowledge here.)

I found the answer to the other part of my question, about the benefits of
RAID, on today's update on the Luminous Landscape site.  At my firm, our
servers have RAID arrays.  I should know more about it, but I leave the
technology to other partners who like it, so I can do what I do.  Basically
I knew they cost a gazillion dollars but would save our butt in case of a HD
failure.  The Luminous Landscape site describes a one-terrabyte RAID-5
array, with four HD's (three plus one in case of failure, the "hot disc" I
believe it's called), for $1,600.  http://www.infrant.com/  After reading
the explanation, I can see a lot of benefit in this for photographers.  I'm
thinking a good upgrade solution would be the PC with two HD's, one for
programs and one for a PS scratch disc, and the RAID box for storage of
images (along with DVD backups as I'm doing now). 

Regards,

  --Ken Carney
    www.kencarney.com 

> -----Original Message-----
> From: Bob Frost [mailto:bob@...] 
> Sent: Friday, February 25, 2005 7:15 AM
> To: DigitalBlackandWhiteThePrint@yahoogroups.com
> Subject: Re: [Digital BW] computer horsepower ?
> 
> 
> Ken,
> 
> If you are using an Intel CPU with DDR memory, 4GB will be 
> faster than 3GB, because you can't give each of the 2 memory 
> channels similar chips unless you use 2 or 4GB. To get 3GB 
> you have to use dissimilar memory cards in each channel, i.e. 
> a 1GB and a 512MB. That will run more slowly than 2x1GB or 2x512MB.
> 
> Bob Frost.
> 
> ----- Original Message -----
> From: "Ken Carney" <kcarney1@...>
> 
> 
> 
> Paul: I am also needing to upgrade the PC.  I have a P4 1.7 
> with 1.3gb RAM.
> If XP assigns two gb to the app, then I guess anything over 
> 3gb would not be
> effective?