III. INSTALLATION

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 <Delete> 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.

960SEL

Setting

Bridge

[2-3] (default)

I20

[1-2]

1 2 3

1 2 3

BRIDGE

I2O

P2B-D2 i960 Setting

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.

 

DRAMRAS

 

Setting

 

Single Sided DRAM

[1-2] (default)

 

Double Sided DRAM

[2-3]

 

DRAMRAS

DRAMRAS

 

1 2 3

1 2 3

P2B-D2 DRAM RAS Setting

Single-sided

Double-sided

DRAMS

DRAMS

INSTALLATION

Jumpers

III.

 

 

 

ASUS P2B-D2 User’s Manual

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