Memory 169
E-EQ-MX3RG-J-ARC MX3 Reference Guide
Convert MX3 from MS-DOS to ROM-DOS
This section is contained in this manual to assist the System Administrator when upgrading
existing MS-DOS units to ROM-DOS units. MX3s received from LXE after March 2001 do not
require ROM-DOS upgrades.
From the ROM-DOS directory create a bootable 1M SRAM or bootable ATA card.
1. Type the following at the DOS prompt, assuming the SRAM card is located in Drive D:
2. Sys d:
3. Copy the following ROM-DOS files to the SRAM card by typing at the DOS prompt:
4. Copy sys.com d:
5. Copy format.com d:
6. Insert the SRAM card in the MX3’s PC slot and edit BIOS Setup to allow bootup from the
SRAM card.
7. Reboot the MX3 and format the unit by typing the following at the DOS prompt:
8. format c: /s /u
Memory
This section lists possible solutions to some common memory problems.
Conventional Memory
If your program reports that there isn’t enough memory for it to run, you may not have enough
conventional memory available for that program. To determine the memory needs of the program
and the availability of memory in the MX3, follow these steps:
1. Check the software documentation to see what kind of memory the program can use
(conventional, extended or expanded)
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.
2. At the system prompt, type MEM to run the DOS MEM command and check how much
conventional memory is left for your programs. (MEM reports the number of bytes available.)
3. Refer to the program’s documentation to verify that this is enough memory to run the
program. If not, you may need to remove device drivers or memory-resident programs from
the CONFIG.SYS or AUTOEXEC.BAT files. (If unsure of how to accomplish this, contact
LXE Technical Support.)
When you start the computer and it displays an error during the memory test, write down the error
and call LXE Technical Support.
Extended Memory
To use software with extended memory, the software must be compatible with the Extended
Memory Specification (XMS).
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UMB is fully allocated in the MX3. Do not load drivers that require UMB or EMM386.EXE.
