Edit the CONFIG.SYS and update/insert these lines to access the UMB:
If not using expanded memory then free 64Kbyte UMB:DEVICE=C:\DOS\HIMEM.SYS
DEVICE=C:\DOS\EMM386.EXE
DOS=HIGH,UMB
There is allocated memory for Monochrome support in the UMA, but it can be included in the UMB instead:DEVICE=C:\DOS\HIMEM.SYS
DEVICE=C:\DOS\EMM386.EXE NOEMS
DOS=HIGH,UMB
Use HIGHSCAN in DOS 6.0+ to scan aggressively for UMB in the UMA (Can cause trouble):DEVICE=C:\DOS\HIMEM.SYS
DEVICE=C:\DOS\EMM386.EXE NOEMS I=B000-B7FF
DOS=HIGH,UMB
Note if wanting better memory performance then one should take a closer look at UMBPCI.SYS, which is an Expanded Memory Manager that has been optimized for several motherboard chipsets.DEVICE=C:\DOS\HIMEM.SYS
DEVICE=C:\DOS\EMM386.EXE I=B000-B7FF NOEMS HIGHSCAN
DOS=HIGH,UMB
Related Load drivers in high memory to save conventional memory
Related Load environment in high memory with DOS 7.0
More Info MS KB37242
More Info MS KB77083
More Info MS KB78557
More Info MS KB98508
More Info MS KB78433
More Info MS KB93375
More Info MS KB112816
Leave a Reply