Toshiba V1100 - Manual (Page 49)

n
Replacing the CMGS battery
A lithium battery, installed on the motherboard, provides power for the real­
time clock (RTC) and CMOS RAM. The battery will last for several years.
When the battery starts to weaken and the voltage drops below a
certain level, you may notice that the date and time are wrong. This is an
indication that the battery needs replacing.
If you replace the battery incorrectly, it can cause injury or damage the
system. Always use the same or an equivalent type of battery.
Do not expose batteries to excessive heat or fire.Please return battery to
the point of purchase for proper disposal.
The following procedure assumes you have opened the case and are
observing ESD precautions. (Refer to " Opening the case".) To replace the
battery, follow these steps:
1. Locate the battery on the motherboard.
Refer to the motherboard illustration to locate the battery. Gently pull
the battery free from its socket, taking care to note the " + " and "-"
orientation of the battery.
2. Pinch the two notches together until the battery partially pops out.
3. Install the new battery in the socket.
4. Reassemble the computer and turn it back on.
5. Run the Setup program and reset the system time and date.
Dispose of used batteries in a safe, environmentally responsible
manner. The literature that comes with the computer may include an
insert about disposing of batteries. If not, check with your local
government for information on where to recycle or dispose of old
batteries. If you cannot find the information you need, contact Toshiba
for assistance. See the
Product Support appendix for ways to contact
Toshiba.
Expansion memory
The V1100 supports 64 MB, 128 MB and 256 MB SDRAM modules at
133 MHz.
The main memory interface provides three 168-pin DIMM sockets. This
allows system memory from 64 MB to 768 MB of SDRAM.
The DRAM controller uses the JEDEC standard serial pres ence detect
mechanism to detect memory and array configuration. No jumper
settings are required for the mem ory size or type; memory is
automatically detected by the system BIOS.
User's Manual Hardware for the V1 100 3-9