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Thread View: comp.os.os2.multimedia
6 messages
6 total messages Started by S. Bhawmik Wed, 21 Feb 1996 17:15
Help: OS/2 Warp does not recognize AHA2840 scsi host adapter
#4
Author: S. Bhawmik
Date: Wed, 21 Feb 1996 17:15
33 lines
1878 bytes
I have recently installed an adaptec AHA2840VL SCSI host adapter.
However, it seems that Warp is failing to recognize the card.
Following are the scenarios:

1. With the host adapter bios enabled, during boot time
the card is recognized and the "AHA2840 ...." banner is displayed
allong with the message to press ctrl-a to invoke the scsiSelect
utility. However, almost immediately a message is displayed
saying "can't locate host adapter" "Bios not installed".
Following this message Warp does boot successfully, however
RMVIEW shows no trace of the host adapter (as well as the 
selective install window). 

2. SInce currently I have only a CDROM drive connected to the 
adadpter I was suggested to disable the host adapter BIOS. I did
that, however, Warp still did not identify the adapter. 

My questions are:
1. Why is warp failing to recognize the 2840 adapter? How can I
make it to recognize the card?

2. The default IRQ for the adapter is 11. Although this IRQ is
free on my machine but the documentation (whatever skimpy I have)
 suggests  that I should use IRQ 15 for the SCSI adadpter. With
the bios disabled I am not able to invoke the scsi select 
utility (which seems to be the only way to change IRQs on this
card). So, is there any way to change the IRQ settings on this card.
(BTW: Since I bought this card as an OEM version, I dont
have EZ_SCSI or CorelSCSI with me).

Any help will be highly appreciated.
Thanks
Sudipta Bhawmik
Help: OS/2 Warp does not recognize AHA2840 scsi host adapter
#5
Author: David E. Nedrow
Date: Fri, 23 Feb 1996 15:04
21 lines
1298 bytes
In message <4gfjvi$fsa@nntpa.cb.att.com> - sudipta@pr20.pr.att.com (S.
Bhawmik)
 writes:
:>
:>I have recently installed an adaptec AHA2840VL SCSI host adapter.
:>However, it seems that Warp is failing to recognize the card.

Well, it doesn't sound like a problem with OS/2, since the error message
appears to occur before OS/2 begins loading (indicated by the white block in
the upper left corner of the screen.)

I just bought a 2840 and plan on installing it this weekend. I'll see if
anything happens with my setup.

Btw. the most recent 284x drivers can be found at
ftp://ftp.adaptec.com/pub/BBS/os2/7700os2.exe.

The .ADD file in this package is dated 09-06-95.

 -David
  I work for CompuServe, but I speak only for myself.
Re: Help: OS/2 Warp does not recognize AHA2840 scsi host adapter
#6
Author: dbray
Date: Fri, 23 Feb 1996 21:04
39 lines
1968 bytes
In <4gkl17$l92@dub-news-svc-4.compuserve.com>, dnedrow@csi.compuserve.com (David E. Nedrow) writes:
>In message <4gfjvi$fsa@nntpa.cb.att.com> - sudipta@pr20.pr.att.com (S.
>Bhawmik)
> writes:
>:>
>:>I have recently installed an adaptec AHA2840VL SCSI host adapter.
>:>However, it seems that Warp is failing to recognize the card.
>
>Well, it doesn't sound like a problem with OS/2, since the error message
>appears to occur before OS/2 begins loading (indicated by the white block in
>the upper left corner of the screen.)
>
>I just bought a 2840 and plan on installing it this weekend. I'll see if
>anything happens with my setup.
>
>Btw. the most recent 284x drivers can be found at
>ftp://ftp.adaptec.com/pub/BBS/os2/7700os2.exe.
>
>The .ADD file in this package is dated 09-06-95.
>
> -David
>  I work for CompuServe, but I speak only for myself.
>

I have found that most people (yes, I've have done this), put in the new card
and presto, the computer looks at you with sorrowful glass eyes.  Well, before
you change to configuration, add the new card, booting on the old one, and 
reconfigure to the new one. Shut down, move the drive to the new card and restart.
This usually works and is better than pulling your hair out.  It will also tell you
if your drivers work.

Good luck 

David Bray
dbray@cpgt.com
CP and G Technologies, Inc.
Voice   (301) 353.0690
Fax     (301) 253.3990
Manufacturing Quality Systems since 1986
Re: Help: OS/2 Warp does not recognize AHA2840 scsi host adapter
#7
Author: Chester Mccarter
Date: Tue, 27 Feb 1996 17:01
42 lines
2317 bytes
S. Bhawmik wrote:
> 
> I have recently installed an adaptec AHA2840VL SCSI host adapter.
> However, it seems that Warp is failing to recognize the card.
> Following are the scenarios:
> 
> 1. With the host adapter bios enabled, during boot time
> the card is recognized and the "AHA2840 ...." banner is displayed
> allong with the message to press ctrl-a to invoke the scsiSelect
> utility. However, almost immediately a message is displayed
> saying "can't locate host adapter" "Bios not installed".
> Following this message Warp does boot successfully, however
> RMVIEW shows no trace of the host adapter (as well as the
> selective install window).
> 
> 2. SInce currently I have only a CDROM drive connected to the
> adadpter I was suggested to disable the host adapter BIOS. I did
> that, however, Warp still did not identify the adapter.
> 
> My questions are:
> 1. Why is warp failing to recognize the 2840 adapter? How can I
> make it to recognize the card?
> 
> 2. The default IRQ for the adapter is 11. Although this IRQ is
> free on my machine but the documentation (whatever skimpy I have)
>  suggests  that I should use IRQ 15 for the SCSI adadpter. With
> the bios disabled I am not able to invoke the scsi select
> utility (which seems to be the only way to change IRQs on this
> card). So, is there any way to change the IRQ settings on this card.
> (BTW: Since I bought this card as an OEM version, I dont
> have EZ_SCSI or CorelSCSI with me).
> 
> Any help will be highly appreciated.
> Thanks
> Sudipta Bhawmik

First make sure that you are loading aic7770.add in your config.sys.
IRQ 11 is fine if it doesn't conflict with anything else.
-- 
Chester Mccarter, CNE
[Team OS/2]
jcmccarter@amoco.com
Re: Help: OS/2 Warp does not recognize AHA2840 scsi host adapter
#8
Author: normc
Date: Thu, 29 Feb 1996 04:03
64 lines
3646 bytes
In <313338D2.1977@amoco.com>, Chester Mccarter <jcmccarter@amoco.com> writes:
>S. Bhawmik wrote:
:> I have recently installed an adaptec AHA2840VL SCSI host adapter.
:> However, it seems that Warp is failing to recognize the card.
:> Following are the scenarios:
:> 
:> 1. With the host adapter bios enabled, during boot time
:> the card is recognized and the "AHA2840 ...." banner is displayed
:> allong with the message to press ctrl-a to invoke the scsiSelect
:> utility. However, almost immediately a message is displayed
:> saying "can't locate host adapter" "Bios not installed".
:> Following this message Warp does boot successfully, however
:> RMVIEW shows no trace of the host adapter (as well as the
:> selective install window).
:> 
:> 2. SInce currently I have only a CDROM drive connected to the
:> adadpter I was suggested to disable the host adapter BIOS. I did
:> that, however, Warp still did not identify the adapter.
:> 
:> My questions are:
:> 1. Why is warp failing to recognize the 2840 adapter? How can I
:> make it to recognize the card?
:> 
:> 2. The default IRQ for the adapter is 11. Although this IRQ is
:> free on my machine but the documentation (whatever skimpy I have)
:>  suggests  that I should use IRQ 15 for the SCSI adadpter. With
:> the bios disabled I am not able to invoke the scsi select
:> utility (which seems to be the only way to change IRQs on this
:> card). So, is there any way to change the IRQ settings on this card.
:> (BTW: Since I bought this card as an OEM version, I dont
:> have EZ_SCSI or CorelSCSI with me).
:> 
:> Any help will be highly appreciated.
:> Thanks
:> Sudipta Bhawmik
;>
;>First make sure that you are loading aic7770.add in your config.sys.
;>IRQ 11 is fine if it doesn't conflict with anything else.
;>-- 
;>Chester Mccarter, CNE
;>[Team OS/2]
;>jcmccarter@amoco.com

Bhawmik and Chester,
<PMFJI>, but let me add three additional bits of info.  During POST when
the AHA2840 banner appears, hit the ctrl-a keys and the 2840 BIOS utilities
will get envoked.  Using the BIOS SCSI utilities will allow you to configure
the adapter card (including the IRQ) and the entire SCSI bus connected to it.
Also, on the 2840 card, there is a switch block labeled S1.  All eight of the
switches should be OFF by default.  I have seen these cards act as you have
described when the SCSI bus is not terminated properly.  If the adapter does
not recognize any attached devices (due to bad termination) then it refuses
to install it's BIOS and also causes the device driver to fail to load so that 
the OS does not detect the card.  You didn't say whether your CD-ROM is 
internal or external which will make a difference.  Also, if you enable the BIOS
then the CD-ROM must NOT be at SCSI ID 0 or 1.  I usually recommend that
SCSI ID 4 and/or 5 be used for CD-ROM's.

Hope this along with the advice given by Chester helps with your problem.

/--------------------------------------------------------------------------
/  Norm Creech  <OS/2 - AIX/RISC/6000 - Linux bigot>
/                   Team OS/2 NC       normc@nando.net
/
Re: Help: OS/2 Warp does not recognize AHA2840 scsi host adapter
#9
Author: David E. Nedrow
Date: Thu, 29 Feb 1996 22:51
20 lines
1242 bytes
In message <313338D2.1977@amoco.com> - Chester Mccarter <jcmccarter@amoco.com>
writes:
:>
:>S. Bhawmik wrote:
:>> 
:>> I have recently installed an adaptec AHA2840VL SCSI host adapter.
:>> However, it seems that Warp is failing to recognize the card.
:>
:>First make sure that you are loading aic7770.add in your config.sys.
:>IRQ 11 is fine if it doesn't conflict with anything else.
:>-- 

Another issue that he should watch for is that he's not trying to use this
card on a 486SLC based motherboard. It uses a 16bit VLB bus path which the
bus-mastering 2840 doesn't work with.



 -David
  I work for CompuServe, but I speak only for myself.
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