Memory Parity Mode - Acer Altos 500 Series User Manual

Memory at 15MB-16MB Reserved for
To prevent memory address conflicts between the system and expansion boards,
reserve this memory range for the use of either the system or an expansion board.
The default setting is System.

Memory Parity Mode

This parameter allows you to enable or disable the ECC (Error Checking and
Correction) feature. The ECC feature enables BIOS to detect and correct data
errors. Disable this parameter if you want to disregard the function. The default
setting is ECC.
Altos 500 Series User's Guide