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PCA-6154/6154L User's Manual
1.7 Safety Precautions
Follow these simple precautions to protect yourself from harm and your
PC from damage.
1. To avoid electric shock, always disconnect the power from your PC
chassis before you work on it. Don't touch any components on the
CPU card or other cards while the PC is on.
2. Disconnect power before making any configuration changes. The
sudden rush of power as you connect a jumper or install a card may
damage sensitive electronic components.
3. Always ground yourself to remove any static charge before you touch
your CPU card. Be particularly careful not to touch the chip connectors.
Modern integrated electronic devices, especially CPUs and memory chips,
are extremely sensitive to static electric discharges and fields. Keep the
card in its antistatic packaging when it is not installed in the PC, and place
it on a static dissipative mat when you are working with it. Wear a
grounding wrist strap for continuous protection.
1.8 Jumper Settings
This section tells how to set the jumpers to configure your card. It
gives the card default configuration and your options for each jumper.
After you set the jumpers and install the card, you will also need to run
the BIOS Setup program (discussed in Chapter 3) to configure the serial
port addresses, floppy/hard disk drive types and system operating
parameters. Connections, such as hard disk cables, appear in Chapter 2.
For the locations of each jumper, see the board layout diagram depicted
earlier in this chapter.
You configure your card to match the needs of your application by
setting jumpers. A jumper is the simplest kind of electric switch. It
consists of two metal pins and a small metal cap (often protected by a
plastic cover) that slides over the pins to connect them. To "close" a
jumper you connect the pins with the cap. To "open" a jumper you
remove the cap. Sometimes a jumper will have three pins, labeled 1, 2 and
3. In this case you connect either pins 1 and 2 or 2 and 3.
