===========================================================================
 BBS: Nebeaux Nerdinski
Date: 11-30-96 (19:49)             Number: 999
From: ALAN SAVAGE                  Refer#: 1291
  To: BRUCEK@PACIFIER.COM           Recvd: NO  
Subj: Re: Adaptec and Memory >       Conf: (999) @Nebeaux.c
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This message was from SAM_DETWEILER@IBM.NET to ALL,
originally in conference C:OS2setup
and was forwarded to you by ALAN SAVAGE.

Note his title, then take his advice!


                    -------------------------
From: sam_detweiler@ibm.net
In <57d1qu$oif@news.eecs.umich.edu>, chrismc@flip.eecs.umich.edu (Chris McCorma
ck) writes

In Merlin, the /DBUFF parm on the AHA154x and AHA164x driver lines
will remove this restriction and allow memory >16 meg to be used normally
(at the expense of some I/O performance)

/DBUFF means double buffer.. ie DMA to a temp buffer, and copy from
temp to user buffer. (or the other way around on write)

>   I am trying to upgrade a 486-DX2/66 system with 16MB of ram.  The computer
>has an Adaptec 1542CF SCSI controller.  According to IBM, this means any RAM
>above 16MB can only be used  ...
>       `` as an in-memory swapper file accessed before SWAPPER.DAT''
>
>   What does this really mean for memory upgrades?  Will 16MB more help my
>system performance much, or am I better off not putting money into memory?
>(I can get 4 MB from a friend for a song.)
>
>   Also, while searching for opinions, what other things should I consider
>for my somewhat aged VESA local bus system?
>
>                                               Chris McCormack
>                                               c.mccormack@ieee.org


Sam Detweiler
IBM OS/2 Device Driver development
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 þ OLX 2.1 TD þ My way, or the wrong way.  Take your pick.