Mitsubishi Electric - Computing for a Connected World Insight CD Home Page

Products
Services
Knowledgebase
Bulletins (IPBs)
Guides
FAQs
Owner's Handbooks
Product Datasheets
Miscellaneous Items
Upgrades
Downloads
Search Insight
E-Mail us
Insight Service
Year 2000
Other Mitsubishi Sites
Site Disclaimer

 
Single User I.P.B. 1042 8th October 1992 (CD)
Department Category Implementation
DOS Apps Software On Failure
Previous IPB Next IPB

Apricot LS Pro and APRUMB.SYS

See Also
IPB 1029 - IPB 1031 - IPB 1032 - IPB 1035 - IPB 1037
IPB 1045 - IPB 2060 - IPB 2084 - IPB 2086 - IPB 2118

Apricot's Upper Memory Block driver for MS-DOS 5.0 (APRUMB.SYS), must be version 1.09 (17477 bytes, 02/09/92) or later to function correctly on the new LS Pro. A small number of early LS Pros were shipped with an earlier version of this driver.

You can find version 1.09 on the new Apricot DOS 5.0 (Rel 5) pack, or on the hard disk drive of new machines. Alternatively, you can download APRUMB.ZIP (7985 bytes) from File Area 42 of the Apricot Insight BBS.

You may notice that using the APRUMB.SYS line in CONFIG.SYS, without any switches on the command line, will do two things that you may not have seen before:

  1. The area E000 to E400 will not be used as this is reserved for the Remote Program Load (RPL) functions that are in the Apricot BIOS as standard on the new LS Pro. Future versions of APRUMB.SYS may be able to reclaim this area.
  1. The soft re-boot function (Ctrl+Alt+Del) will hang the machine. This is due to an area of memory, used by the BIOS, that is being initialised by APRUMB.SYS. The solution is to add an exclusion to the end of the command so that the CONFIG.SYS line reads:

    DEVICE=C:\DOS\APRUMB.SYS X=E800-EC00

----------oOo----------

 

Computing for a Connected World