Subject: Re: alpha support for Ultra DMA EIDE?
To: Paul H. Anderson <>
From: Jason Thorpe <>
List: port-alpha
Date: 03/15/1999 12:49:13
On Mon, 15 Mar 1999 11:27:51 -0500 (EST) 
 "Paul H. Anderson" <> wrote:

 > I need to buy a bunch of IDE drives - is it worth getting 7200 RPM Ultra
 > DMA drives for my alpha 164LX motherboards?  That is, will there be a
 > substantial speed improvement over a typical 5400 rpm drive?  The main
 > data drives in these boxes are a pair of IBM 9ZX 10K RPM drives that will
 > be in a ccd array, so I want my boot disk to not slow me down under any
 > circumstances.

The PCI IDE controller in the 164LX doesn't support Ultra DMA... only
DMA.  So, an Ultra DMA disk wouldn't necessarily help you too much.

        -- Jason R. Thorpe <>