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"Safe" memory testing

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Old March 8th 04, 04:23 PM
Timothy Lee
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Default "Safe" memory testing

I would like to test my RAM with the memtest86 program. Some of the
Readme.txt discusses "safe" memory testing. Does this mean that the
memory test routines could possibly physically harm the RAM in some
way, or does this mean that the program can run without crashing the
computer, or does this mean something else?

(partial quote from Readme.txt, note second paragraph...)

The BIOS in modern PC's will often reserve several sections of memory
it's use and also to communicate information to the operating system
ACPI tables). It is just as important to test these reserved memory
as it is for the remainder of memory. For proper operation all of
needs to function properly regardless of what the eventual use is.
this reason Memtest86 has been designed to test as much memory as is

However, safely and reliably detecting all of the available memory has
problematic. Versions of Memtest86 prior to v2.9 would probe to find
memory is. This works for the vast majority of motherboards but is not
reliable. Sometimes the memory size is incorrect and worse probing the
places can in some cases cause the test to hang or crash.


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