FECO 3000 # 48

	FECO:	3000 # 48
	MODIFICATION No:	N/A
	PRODUCT:	NCR 345X/35XX
	SUB-ASSEMBLY	N/A
	ESTIMATED MAN HOURS	N/A
	CLASS OF CHANGE:	INFORMATIONAL
	REASON FOR CHANGE:	TWO ISSUES WITH REFERENCE DISKETTE

1.        Introduction

           This feco covers two separate issues with the same version of 2.01.02 reference
          diskette for 345x/35xx systems.

          *dos diagnostic failure with 3com etherlink board.

          *NT panic with the 3com etherlink board.

2.       units affected

         345x/35xx system with Unix mp/ras or Windows NT operating system.

3.      issue one:

3.1.  configuration:

        3450 or 3550 system

        Windows NT or Unix mp/ras operating system

        3 com ethernet adapter @0041.adf with bus mastering capability

        Reference diskette version 2.01.02

3.2. sympton: dos diagnostics for the 3 com ethernet adapter fails. While performing the
      bus mastering test for this board, it reports that there is a configuration problem.

       (tech serv ref: 25/3/6)

       (cssb.bu96-0079-t)

3.3. corrective action:

        Note....prior to changing any microchannel settings, record all of your original adapter
        settings. Change the settings as instructed for running diagnostics, then restore all
        settings to their original values before you reboot the system into unix. This does not
        apply to nt systems - see issue two.

        Manually configure the 3 com address to be located in the first mb of address space
        between 0c000h - dffffh. With the reference diskette version 2.01.02, the 3 com
        adapter address space is defaulted during auto - configuration to greater than 1mb
        addresses. The 3 com dos diagnostics is not able to access this adapter at the
        address greater than 1mb.

4.     issue two

4.1.  configuration:

        3450 or 3550 system

        Windows NT operating system

        3 com ethernet adapter @0041.adf with bus mastering capability

        Reference diskette version 2.01.02

4.2.  symptom: system panics while booting os after running auto configuration in the
        reference diskette.

4.3.  corrective action: manually configure the 3 com address to be located in the first mb
       of address space between 0c000h - dffffh. With the reference diskette version
       2.01.02, the 3 com adapter address space is defaulted during auto - configuration to
       greater than 1mb addresses. The 3 com drivers for nt are not able to access this
       adapter at the address greater than 1mb.

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