		Frequently Asked Questions about OS/2

This FAQ document is valid for the following LSI Logic devices: 

Chips
	SYM53C810, SYM53C810A, SYM53C810AE, SYM53C815, 
 	SYM53C825, SYM53C825A, SYM53C825AE, SYM53C825AJ, 
        SYM53C860, SYM53C860E, SYM53C860AE, SYM53C875, 
 	SYM53C875E, SYM53C875J, SYM53C875JB, SYM53C876, 
        SYM53C876E, SYM53C885, SYM53C895, SYM53C895A, 
        SYM53C896, SYM53C1000, SYM53C1010

Boards
        LSI21003, LSI22915, SYM20810, SYM20811, SYM20860, 
        SYM21002, SYM21040, SYM22801, SYM22802, SYM22902, 
        SYM22903, SYM22910, SYM8100ASP, SYM8100S, SYM8150SP, 
        SYM8250ASP, SYM8250S, SYM8251AD, SYM8251ASP, SYM8251D,
        SYM8251S, SYM8600SP, SYM8750SP, SYM8751D, SYM8751SP, 
        SYM8751SPE, SYM8951U, SYM8952U, SYM8953U, SYM8955U

Many OS/2 installation problems are due to IRQs not being enabled properly.
Most OEM cards that use our chipsets are not true Plug and Play (PnP) PCI 
to SCSI host adapters. Therefore, manual setting of the IRQs in the system 
is required. The next section guides the user through common setup steps to 
enable IRQs. Following sections address other setup issues and general 
OS/2 driver questions.

********************************************************************************

System CMOS Setup Hints

The following section describes setup steps for 3 common System CMOSs.

These are general procedures, since each motherboard vendor modifies the BIOS
to configure their motherboard. To get the best results it is best to set 
network cards to IRQ 9 and to set sound cards to IRQ 5. This can be done 
using the software that comes with the card. For detailed instruction for CMOS 
setups contact the motherboard manufacturer.


Award BIOS

1)	While in the CMOS setup pick the "PCI Configuration Setup" or "PNP and PCI
Configuration" menu. If this option is available change the settings for the slot 
number in which the LSI Logic host bus adapter (HBA) is located from "Auto Detect" 
to "INT A" or to an IRQ such as 10, 11, 12 or 15, leaving all other slots set to 
Auto Detect. If there are no slot options available then use the "MANUAL" setting. 
This will show all of the IRQs and will list them as either "Legacy ISA" or "NO/ICU"  
or "PNP/PCI" or "Yes/ICU". Set all IRQs below 9 to either Legacy ISA or NO/ICU.  
IRQs 10, 11, 12 and 15 will be set to PNP/PCI or Yes/ICU.  

2)	The "Available IRQ" settings should be modified to 1st = 10, 2nd = 11, 
3rd = 12, and 4th = 15. Ensure that no other device in the system (i. e., sound 
card or LAN card) is set to the same IRQ as the LSI Logic HBA. For example, if the 
LAN card is using IRQ 11, remove IRQ 11 as the second available IRQ in the CMOS  
setting and shift all the available IRQs up one level.

3)	Some versions have a statement that says "PCI IRQ Activated by". Set 
this to "Level". Some versions have a statement that says "PCI IDE MAP to". 
Set this to "ISA" or "Absent".

4)	Save the configuration and reboot OS/2. If you see the SYM8XX.ADD or 
SYM_HI.ADD driver initialize the device and the OS/2 Desktop appears then your 
system is configured properly.


AMI BIOS

1)	While in the CMOS setup pick the "Chipset" or "Advanced" menu.

2)	Some versions of the CMOS setup allow for the setting of IRQs referenced 
by the slot location of the LSI Logic HBA. Other versions of the CMOS setup 
only allow for the IRQs to be set to "PCI/ISA" or "Used/Available". In any case, 
make sure that IRQ 9 is set to "Used", "Not Available", or "ISA".  Keep IRQs 10,
11, and 15 free.

3)	Save the configuration and reboot OS/2. If you see the SYM8XX.ADD or 
SYM_HI.ADD driver initialize the device and the OS/2 Desktop appears then your 
system is configured properly.


Phoenix BIOS

If you have the version of the Phoenix BIOS that only has 2 pages to the CMOS 
setup, the only option for SCSI is to enable or disable it. The system will 
automatically determine settings on its own.  There is no workaround to fix 
the problem. The only solution is to use a different SCSI card.  


********************************************************************************

OEM SCSI HBAs with LSI Logic Chips

LSI Logic sells controller chips to other vendors, referred to as OEMs. If you have 
a host adapter from an OEM other than LSI Logic then you should contact the OEM first
before contacting LSI Logic. If the LSI Logic controller chip is embedded on the 
motherboard then contact the motherboard manufacturer for support on all issues 
related to hardware and sofware.

********************************************************************************  

Problems that we have encountered with specific OEM HBAs are listed below. While 
old OEM cards may still be compatible with LSI Logic software, they may not be 
compatible with newer versions of OS/2.  We recommend that you upgrade to a PnP 
style PCI to SCSI card.

Note:  All OEM HBA's that have jumpers for the setting of INT A, B, C, and D must 
be set to INT A. This is generally pins 1&2.

MS-3805 HBA:
JP2's default value is INT A Edge, pins 2&3. Change JP2 to INT A Level, pins 1&2.

GA-410 HBA:
JP3 is a setting for 1st controller and 2nd controller. JP3's default value 
is pins 1&2. Change JP3 to pins 2&3. The system will register the IRQ.

SCSI-810P HBA:
J1's default value is INT B, pins 2&3. Change J1 to INT A, pins 1&2.

Model P810 HBA: 
    or
PCI-SCSI 21-050020-11 HBA:
This card will not allow an IRQ setting to be enabled for the LSI Logic 
controller (which the card needs for proper operation in OS/2). There is no 
workaround for this card under OS/2.

HSB KW801V10 HBA:
This card will not allow an IRQ setting to be enabled for the LSI Logic 
controller (which the card needs for proper operation in OS/2). There is no 
workaround for this card under OS/2*.

* Note: The HSB card does allow IRQs to be enabled if the host system is an 
Intel P5-66, an FIC P5-66, or an HSB motherboard.


********************************************************************************

General Questions And Answers


Q:   	I get the message "One or more of your scsi host adapters is 
    	malfunctioning". What do I do?

A:      This error usually occurs when an interrupt is not assigned to
    	the host bus adapter card. Use the System CMOS Setup Hints section above 
        to troubleshoot the problem. Also, most 486 motherboards and some 
    	Pentium boards have jumper assignments for the PCI slots. Refer to the 
    	motherboard manual for proper settings. CMOS configuration must match 
    	the card and motherboard settings.  


Q: 	I get the message "The system cannot find the file X:\OS2\SYSTEM\COUNTRY.SYS 
        specified in the COUNTRY statement on line YY of the CONFIG.SYS file. Line YY 
        is ignored. The system is stopped. Correct the preceding error and restart 
        the system."

A:  	This message is displayed when the operating system cannot continue
        to load from the current partition.  X: is the drive letter assigned to the
        partition where OS/2 was originally installed. After the driver loaded, the 
        partitioning of the system changed. OS/2 can no longer locate the remaining
        system files required to complete the operating system load. This can be 
        caused by the driver finding a primary partition on a drive that was not
        present or not visible at the time OS/2 was installed. This causes the drive 
        letters to be changed such that the original locations of the files 
        referenced in the CONFIG.SYS file are no longer correct. Return your system 
        to the configuration used during installation and/or check the ordering of 
        "BASEDEV=" entries in the CONFIG.SYS file to be sure that the boot device 
        is loaded first.    
            

Q:	What driver do I load for an NCR Computer that has a built-in 53C700 
	SCSI interface?

A:	OS/2 is supported by NCR.  If you are experiencing problems, call 
	NCR at (800) 774-7406.


Q:	What driver do I load for OS/2 that supports a video card using 
	a 77C22E, 77C22E+, or 77C32BLT?

A:	There is no video driver available for OS/2 support.  The only option 
	is to get another video card that is supported under OS/2.

********************************************************************************

General Notes

1)	The file OS2.TXT provides installation instructions, information on 
        command line options, and additional troubleshooting details. OS2.TXT is 
        contained in the zip files provided through the LSI Logic Web site 
        (www.lsilogic.com). Click on the Support button and follow the instructions 
        for downloading drivers and software.

2)	The Current OS/2 drivers can be downloaded from the Web site 
        (www.lsilogic.com). Click on the Support button and follow the instructions
        for downloading drivers and software.

3)      The host adapter user's guide contains the technical specifications of an 
        LSI Logic board.  This includes the mechanical drawing of the board plus 
        information on jumpers, cables, connectors, etc. Documentation is available
        through the LSI Logic Web site (www.lsilogic.com). Click on the TechLibrary
        button and follow instructions.

4)	Adapters using the SYM53C810, SYM53C810A, SYM53C810AE, SYM53C860, SYM53C860E, 
        and SYM53C860AE controllers do not have a BIOS on the card.  They rely on 
        either the System BIOS or the BIOS provided by other LSI Logic boards for 
        BIOS support.

*********************************************************************************

LSI Logic Technical Support

If you are still experiencing problems with your LSI Logic OS/2 drivers, you can 
contact the Technical Support Staff by calling us at (719) 533-7230 or faxing us 
at (719) 533-7271. You can also e-mail us at support@lsil.com.

Hours of operation are 7:00 am to 4:00 pm MST Monday - Friday.  We are closed on 
weekends and holidays. Messages can be left for the Technical Support Staff at any 
time by calling (719) 533-7230 and pressing 2 at the start of the answering message.
