IBM Token Ring Adapter Problems with Base I/O Address

 Last reviewed: November 19, 1997
Article ID: Q120575
The information in this article applies to:
  • Microsoft Windows NT operating system versions 3.1, 3.5, 3.51, and 4.0
  • Microsoft Windows NT Advanced Server versions 3.1, 3.5, 3.51, and 4.0

SYMPTOMS

When installing two IBM Token Ring network cards, the following event message appears in Event Viewer: 

   Event ID: 5012, Source: IbmTok01, Type: Error
   Description: The I/O base address supplied does not match jumpers
   on adapter.

CAUSE

The IBM Token Ring network adapter driver, IBMTOK.SYS, is looking for specific Primary and Secondary Base I/O addresses which must match the switches set on the adapter (Switch 9).

RESOLUTION

Configure the Base I/O ROM addresses and corresponding switches listed below on the adapter for the following switch 9 positions: 

   Switch 9           Base I/O Address   Base I/O Switches
   (Position)         (Size = 8K)
   -------------------------------------------------------
   Primary            CC00               1, 4, 5 - up
   (Switch 9 = up)                       2, 3, 6 - down
   Secondary          DC00               1, 3, 4, 5 - up
   (Switch 9 = down)                     2, 6 - down
NOTE: Although the adapter supports other base I/O addresses, the IBM Token Ring driver supplied with Windows NT only supports the addresses of CC00 and DC00. If either of these addresses conflict with other installed base I/O addresses, reconfigure other adapters in order to accommodate the required I/O base addresses of the IBM Token Ring driver. This adapter reserves two separate address ranges - One for base I/O and one for Shared RAM. Make sure that these two address ranges do not overlap by using the WinMSD utility.

MORE INFORMATION

Dip-switch settings for the IBM Token Ring adapter are: 

   Switches 1-6     Base I/O ROM Address
   Switches 7,8     Interrupt Level (valid interrupts are 2, 3, 6, 7)
                    For IRQ 2 Jumper, these switches are down.
   Switches 9       Primary / Secondary adapter
   Switches 10,11   Shared RAM Size 8K , 16K, 32K, 64K
                    For 8K shared memory, 10 and 11 are down;
                    for 16K shared memory, 10 is up and 11 is down.
                    Shared RAM size addresses are reserved as follows:
                    - Primary adapter (Switch 9 = up) starts at D0000.
                    - Secondary adapter (Switch 9 = down) starts at E0000.
                    Listed below is a Length and Size equivalency chart:

                    Length        Size
                    ------------------
                    0x2000         8K
                    0x4000        16K
                    0x8000        32K
                    0x10000       64K

   Switches 12      4Mbs / 16Mbs network
                    For 4 MB, Jumper 12 is down.
The IBM products included here are manufactured by a vendor independent of Microsoft; we make no warranty, implied or otherwise, regarding these products' performance or reliability.

Additional query words: prodnt
Keywords : ntdriver nthw kb3rdparty kbhw kbfasttip
Version : 3.1
Platform : winnt

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Last reviewed: November 19, 1997
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