Microsoft KB Archive/120575

= IBM Token Ring Adapter Problems with Base I/O Address =

Article ID: 120575

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Advanced Server 3.1
 * Microsoft Windows NT Server 3.5
 * Microsoft Windows NT Server 3.51
 * Microsoft Windows NT Server 4.0 Standard Edition
 * Microsoft Windows NT Workstation 3.1
 * Microsoft Windows NT Workstation 3.5
 * Microsoft Windows NT Workstation 3.51
 * Microsoft Windows NT Workstation 4.0 Developer Edition
 * Microsoft Windows NT Advanced Server 3.1

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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.

Additional query words: prodnt

Keywords: kbhardware kb3rdparty KB120575

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