Asus P/E-P55T2P4D User Manual download pdf (Page 42)

P/E-P55T2P4D User’s Manual 37

IV. BIOS SOFTWARE

IV. BIOS

(Chipset Features)

[DRAM and ECC]

If all your DRAM modules have parity chips (e.g. 8 chips + 4 parity chips), they are

considered 36bits. This motherboard sums the memory per bank and therefore two

modules will give 72bits and the following will be displayed:

DRAM are 72 bits wide

Memory parity SERR# (NMI):

DRAM ECC/PARITY Select:

If your DRAM modules do not have parity chips (e.g. 8 chips), they are considered

32bits and the following will be displayed instead:

DRAM are 64 (not 72) bits wide

Memory parity SERR# (NMI):

The default of Disabled for Memory parity SERR# (NMI) will not show memory

errors on your monitor. When using parity DRAM modules, you can select from the

default of Parity or ECC (Error Checking and Correcting) to correct 1 bit memory

errors that may occur in the memory. (See pages 12-13 for more information on

DRAM memory modules.)

Onboard FDC Controller

The default of Enabled allows you to connect your floppy disk drives to the onboard

floppy drive connector instead of a separate controller card. If you want to use a

different controller card to connect the floppy drives, set this field to Disabled.

Onboard FDC Swap A: B:

This field reverses the drive letter assignments of your floppy disk drives. If you

want to switch drive letter assignments, set this field to Swap AB, otherwise leave on

default of No Swap. This works separately from the BIOS FEATURES SETUP

"Swap Floppy Drive." This is functionally the same as physically interchanging the

connectors of the floppy disk drives.

Onboard Serial Port 1 / Onboard Serial Port 2

These fields control the assignments for the motherboard’s two onboard serial con-

nectors. The following lists the available options:

COM1, 3F8H (Onboard Serial Port 1 default)

COM2, 2F8H (Onboard Serial Port 2 default)

COM3, 3E8H

COM4, 2E8H

Disabled (Disables the onboard serial ports)

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Asus P/E-P55T2P4D User Manual Page 42