Extended memory being ignored

[GreenSquare]

When running standard diagnostics on RAM Memory from the DOS menu PC-Doctor happily performs tests on extended as well as base memory. However when I run a benchmark test extended memory is ignored. The on-line manual explains that drivers need to be loaded.

Can you explain this because DOS extended drivers are already installed - how otherwise could XMS memory be tested under the RAM memory tests?

Thanks and regards

[fwilson]

GreenSquare,

The ram tests use the XMS driver for paging not to directly test the memory.  To include the memory in benchmarking emm386 would have to be loaded to make the additional memory available to DOS.

-Fred