Asus P2B-D2 - Manual (Page 13)

ASUS P2B-D2 User’s Manual 13
III. INSTALLATION
III. INST
ALLA
TION
Jumpers
Jumper Settings
1. Clear Real Time Clock (RTC) RAM (CLRTC)
The CMOS RAM is powered by the onboard button cell battery. To clear the
RTC data: (1) Turn off your computer and unplug its AC power, (2) Short the
two solder points labeled CLRTC, (3) Turn on your computer, (4) Hold down
during bootup and enter BIOS setup to re-enter user preferences.
Short the solder points to clear CMOS
P2B-D2 Real Time Clock RAM (CLRTC)
2. i960 Bridge Setting
The secondary PCI slots can function as standard PCI slots when the i960 is set
to “Bridge” mode. When the i960 is set to “I2O” mode, the secondary PCI slots
are controlled by the i960 and only intelligent I/O (I2O) cards can be used on the
secondary PCI slots. An i960 memory module is required for the “I2O” mode.
P2B-D2 i960 Setting
I2O
1 2 3
BRIDGE
1 2 3
3. i960 Local DRAM RAS Setting
When the i960 is set to I20 mode, the i960 chip acts as a processor and at least
one SIMM memory module is required. When using a single memory module,
this jumper does not need setting but must be installed in i960 SIMM1. When
using two memory modules, this jumper needs to be set according to the number
of sides used by the chips mounted on the memory modules.
P2B-D2 DRAM RAS Setting
DRAMRAS
Single-sided
DRAMS
1 2 3
DRAMRAS
Double-sided
DRAMS
1 2 3
960SEL Setting
Bridge [2-3] (default)
I20 [1-2]
DRAMRAS Setting
Single Sided DRAM [1-2] (default)
Double Sided DRAM [2-3]