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- ┌───────────────────────────────────────────────────────────────────────────┐
- │ OS/2 2.0 Technical Tips │
- │ From the │
- │ OS/2 Technical Support Team │
- │ Boca Raton, Florida │
- │ │
- ├───────────────────┬─────────────────────────────────────┬─────────────────┤
- │ File Name │ Description │ Number of pages │
- ├───────────────────┼─────────────────────────────────────┼─────────────────┤
- │ OS2BIOS.FAX │ OS/2 BIOS Level Information │ 4 │
- └───────────────────┴─────────────────────────────────────┴─────────────────┘
-
-
- INFORMATION ON BIOS PROBLEMS
- ----------------------------
-
- LOCAL FIX:
- Due to the wide variety and many sources for PC compatible
- equipment, many different combinations of hardware components
- and BIOS revisions exist.
-
- OS/2 is an advanced operating system that may require more up to
- date BIOS than DOS and Windows. Many install problems and other
- problems may be resolved by updating BIOS.
-
- You will need to determine your BIOS manufacturer, version, and
- date, and this should be checked with the manufacturer for
- compatibility with OS/2.
-
- If you need help determining your BIOS information, see "TIPS ON
- GETTING BIOS INFO" below.
-
-
- SOME BIOS COMPATIBILITY INFO
- ============================
-
- The following table lists dates and revision levels required
- for OS/2 to work with listed components:
- Component Date ("mmddyy") Revision Level
-
- AMI BIOS
- --------
- IDE hard drives 040990
-
- SCSI 092588 or later (need OS/2 compatible and
- may need special installation procedure)
-
- Other drives 092588 or later
- MFM, RLL, ESDI, etc.
-
- Keyboard controller F only *
-
- * Revision level 0 or revision level 9 with non standard ID
- code format indicates motherboard OEM manufacturer -
- nonstandard BIOS. This may or may not work with OS/2, and
- it may have "custom" functionality for the specific
- motherboard which may preclude upgrading. The motherboard
- manufacturer should be contacted for further information.
-
- Phoenix Bios 051192 1.03
-
- Always IN2000 SCSI VCN:1-02
- for host adapter: 2.5-2.7
- Quantam Plus Hardcard 2.6
-
- PROCOMM+ SCSI MCA does not work - Contact PROCOMM for
- details on OS/2 support
-
-
- TIPS ON GETTING BIOS INFO
- =========================
-
- AMI BIOS's of modern vintage provide a Screen ID Code,
- visible at the lower left of the screen during the initial
- RAM count, and which can be made to return by resetting
- with Ctrl-Alt-Del. The format of this ID code is:
-
- AMI BIOS and AMI BIOS Plus: aaaa-bbbb-mmddyy-Kc
- AMI Hi-Flex BIOS: ee-ffff-bbbbbb-gggggggg-mmddyy-hhhhhhhh-c
-
- If the screen ID code is in a form other than this, the BIOS
- is either very old or was produced by a company with a source
- code license. In the former case, contact us for update
- information. But in the latter case, only the motherboard
- manufacturer will be able to provide further information or
- updates. Everex 386 BIOS's are in this latter category.
-
-
- BIOS UPDATES
- ============
-
- If a BIOS prior to the dates noted above requires
- replacement, note the following:
-
- 1. AMI BIOS and BIOS Plus series BIOS (16 character ID code)
- for CACHED motherboards are customized for individual mother-
- board designs, and can ONLY be obtained from the motherboard
- OEM, with only THREE common exceptions:
-
- a) BIOS's with "aaaa" = E307 can often be replaced with a
- standard type.
-
- b) BIOS's for Northgate or Motherboard Factory motherboards
- EXCEPT the Northgate Slimline can, be replaced by a
- standard type.
-
- c) BIOS's with "aaaa" = DAMI, DAMX, or EDAMI are usually for
- cached boards designed and/or built by AMI, and if so, can be
- updated.
-
- 2. The complete Screen ID Code is required to properly address
- whether a BIOS update for other motherboards can be provided,
- and in the case of the Hi-Flex BIOS, the complete SECOND and
- THIRD lines of the ID Code are also necessary. If not visable
- immediately on the screen, they may be viewed by pressing the
- <INS> key during boot-up.
-
- 3. For these AMI BIOS updates, Call Washburn & Co. to order
- new versions.
-
-
-
- OTHER COMPATIBILITY ISSUES
- ==========================
-
- Following are a number of notes about usage, and about potential
- compatibility problems with the microcode levels on various
- adapters and devices.
-
- Adapter: All Adaptec adapters
- Note: SCSI hard disks must be configured as SCSI target ID 0
- or 1 to be able to start up from that hard disk.
-
- Adapter: Adaptec AHA-154x
- Drive: IBM 0661 - 320MB SCSI
- Note: Adapter BIOS will not recognize the drive as target 0
- or 1 (Drives 80, 81). For OS/2 2.0, the drive can be
- used as a non-startup drive.
-
- Adapter: Adaptec AHA-174x
- Drive: IBM WDS-3180 - 80MB SCSI, IBM WDS-3160
- - 160MB SCSI
- Note: Adapter will not recognize these drives when config-
- ured in 'STANDARD MODE' (AHA-154x emulation). Instead,
- the AHA-174x adapter should be configured in "ENHANCED
- MODE'. This mode is supported by the OS/2 2.0 drivers,
- and the problem does not occur when the adapter is
- operating in enhanced mode.
-
- Adapter: Future Domain TMC-850/860/875/885 w/BIOS revision
- level 7.0.
- Future Domain TMC-1660/1670/1680 w/BIOS revision level
- 2.0.
- System: IBM Models 35 and 40 when the Future Domain adapter is
- controlling the startup diskette.
- Note: Will produce the message "Disk read error has occur-
- red" when you attempt to start the Installation
- diskette.
- Contact Future Domain for a free BIOS upgrade.
-
- Adapter: AMI SCSI Adapters
- Symptom: AMI "Fast Disk" and AMI "Fast Disk II" SCSI adapters
- are incorrectly recognized as Adaptec adapters.
- Problem: At the final restart after the installation is comp-
- lete, delete from the CONFIG.SYS file, any line with
- "BASEDEV=AHA1xxx.ADD" (where "x" can be any character)
- Ensure the line "BASEDEV=IBMINT13.I13", appears in the
- CONFIG.SYS file.
-
- Adapter: Bernoulli Boxes
- Notes: 44 and 89MB drives will work if connected to any other
- SCSI card other than Bernoulli's own card. The drive
- will work as a large diskette and will be non-bootable
-
- Adapter: PROCOMM+ SCSI MCA adapters do not work
- Resolution: Contact PROCOMM for details on OS/2 support.
-
- Adapter: IBM 16-bit SCSI cards (early versions)
- Symptom: Early versions of the IBM 16-bit SCSI adapters may
- experience problems and report erroneously that the
- device is not functioning.
- Resolution: Replace SCSI card with a card with updated microcode
-
- Other problems:
- ===============
-
-
- Symptom:
- Slow hard drive speed and possibly no icons appearing.
- Other data corruption possible.
- Problem: Hard drive and adapter card settings not correctly
- matched.
- Resolution: Ensure that hard drive and card are matched in their
- settings of SYNCH and ASYNCH mode.
-
-
- Some contact phone numbers:
-
- Always Technology 818-597-9595.
-
- Washburn & Co. 716-248-3627 (AMI Bios Upgrade)
- 800-836-8026 (AMI Bios Upgrade)
-
- Phoenix 1-405-321-8333
-
-