Ps/2 Mouse; Memory Parity Mode; Usb Host Controller - Acer AcerPower Flex4000 Series User Manual

2.2.15 PS/2 Mouse

The BIOS utility automatically detects if there is a PS/2 mouse connected to your system.
If there is, this parameter displays as

2.2.16 Memory Parity Mode

This parameter specifies if ECC or parity check features are enabled or disabled.
parity check feature enables BIOS to detect data errors. The ECC feature enables BIOS
not only to detect but also correct data errors.

2.2.17 USB Host Controller

This parameter specifies whether the onboard USB controller is enabled or disabled.
AcerPower Flex4000 Series (V59LA/IDB3-C) User's Guide
Installed
Changing the Memory Parity Mode
setting requires removing all your
existing RAM, and replacing it with
parity or ECC RAM. You cannot
mix ECC and non-ECC RAM
together.
. Otherwise, this is set to None.
The