Notes for installing Promise Technologies DC-200 Caching IDE controller:
(tested with PTI DC-200 card & PTI driver rev 1.40 & OS/2 3.0 (Warp))
-by Bob Meizlik

These are things that are not in (or not clear in) the Promise manual,
that could cause much lost time.

1) Modify your CONFIG.SYS:
 config.sys line: BASEDEV=PTI1S506.ADD /V
 REPLACES                 IBM1S506.ADD

2) DC-200 Bios settings (tested on 486DLC40 clone motherboard):
   Cache  - Turbo
   DISKIO - Normal (can be Turbo if using 1.00 PTI driver)
   Bios   - D8000  (adjust as required by conflicting card bios addresses)

3) Addendum to the install guide: (* is default setting):

 JP2 - OPEN - FDD Disable
      *Short- FDD Enable

       Short   Controller is:
 JP1 - 1 + 2 - 2ndary  IDE at IRQ 12
      *3 + 4 - Primary IDE at IRQ 14
       5 + 6 - 2ndary  IDE at IRQ 15


4) Be aware of the following, if you're going to have discontiguous
   drive chains (i.e.: you don't put 2 drives on the 1st cable AND you
   have one or more drives on the 2nd cable):

#: 268042 S2/Install Questions
    16-Nov-94  00:56:41
Sb: #266272-Warp: Promise Controller
Fm: Bob Meizlik 72074,3272
To: Huw Reddick 100072,446

Hi, Hue (and for everyone else skulking on this thread):

I finally got thru to a tech at Promise.  I found the following interesting
info:

1 - The 1.00 driver supports attaching drives 0,2,3 (missing 1), because the
skeletion code they got from the OS/2 Device Driver Kit at that time worked
fine that way.  They have since upgraded their DDK, and the base code for
IBM1S506.ADD now insists that the disks be attached sequentially.

They plan to make it a documented restriction that drives have to be attached
to the PTI cards sequentially.

2 - The drivers above 1.00 were created with the NEW DDK, so they will not be
able to support discontiguous drive chains.

-BOBm