IBM Token Ring Adapter Problems with Base I/O Address (120575)

The information in this article applies to:

Microsoft Windows NT Server 3.1
Microsoft Windows NT Server 3.5
Microsoft Windows NT Server 3.51
Microsoft Windows NT Server 4.0
Microsoft Windows NT Workstation 3.1
Microsoft Windows NT Workstation 3.5
Microsoft Windows NT Workstation 3.51
Microsoft Windows NT Workstation 4.0
Microsoft Windows NT Advanced Server

This article was previously published under Q120575

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.

Modification Type:	Major	Last Reviewed:	5/6/2003
Keywords:	kb3rdparty kbHardware KB120575