Technical Information 1-15
Figure 1-13 I/O Board Layout
CMOS Battery
The lithium battery (3 Volts, 280 mAh capacity) is attached to P13 on the Graph board. It
provides battery backup and prevents data loss in the system’s complementary metal oxide
semiconductor (CMOS) RAM. This memory area contains information on the system’s
configuration like date, time, drives, and memory. The CMOS battery lasts approximately
three years.
Bridge Battery
The bridge battery saves the memory contents and system status for up to 5 minutes while
in Suspend mode. It is connected to the Graph board via connector P11. The AC adapter
maintains voltage in the bridge battery when the system is powered on or off. The bridge
battery stores 7.2 Volts, 70 mAH.
SYSTEM MEMORY
The Graph board provides 32 MB (3.3 V SO-DIMM) of standard RAM.
Optional SO-DIMMs with a value of 16-, 32-, or 64-MB can be added to increase system
memory up to a maximum of 128-MB (70 ns 3.3V EDO access). In addition, 256-KB of
read-only memory (ROM), 1 x 28F020, enables the system BIOS to be flashed.
The system provides 2 MB of video RAM (50-ns HyperPage mode, self-refresh).
The following Cache RAM is provided:
L1: 32 KB (Internal Pentium)
L2: 512 KB write back (External).
SOLD BY laptopia2005 DO NOT RESELL!!
SOLD BY laptopia2005 DO NOT RESELL!!