When working inside your computer, Protecting against electrostatic discharge, Khq :runlqj ,qvlgh Page 12: 3urwhfwlqj $jdlqvw (ohfwurvwdwlf 'lvfkdujh
Page 12: 3urwhfwlqj $jdlqvw (ohfwurvwdwlf 'lvfkdujh

xi
DELL CONFIDENTIAL - Preliminary 4/11/00
FILE LOCATION: S:\SYSTEMS\Labrador\Ug\89TMRsi0.fm
:KHQ :RUNLQJ ,QVLGH Before you remove the computer covers, perform the following steps in the sequence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urn off your computer and any devices. 2. Ground yourself by touching an unpainted metal surface on the chassis, such as While you work, periodically touch an unpainted metal surface on the computer 3. Disconnect your computer and devices from their power sources. Also, discon- Doing so reduces the potential for personal injury or shock. In addition, take note of these safety guidelines when appropriate: When you disconnect a cable, pull on its connector or on its strain-relief loop, not Handle components and cards with care. Don’t touch the components or con- &$87,21 7KHUH LV D GDQJHU RI D QHZ EDWWHU\ H[SORGLQJ LI LW LV LQFRUUHFWO\ LQVWDOOHG 5HSODFH WKH EDWWHU\ RQO\ ZLWK WKH VDPH RU HTXLYDOHQW W\SH UHFRP PHQGHG E\ WKH PDQXIDFWXUHU 'LVFDUG XVHG EDWWHULHV DFFRUGLQJ WR WKH PDQXIDFWXUHU·V LQVWUXFWLRQV 3URWHFWLQJ $JDLQVW (OHFWURVWDWLF 'LVFKDUJH Static electricity can harm delicate components inside your computer. To prevent
indicated.
the metal around the card-slot openings at the back of the computer, before
touching anything inside your computer.
chassis to dissipate any static electricity that might harm internal components.
nect any telephone or telecommunication lines from the computer.
on the cable itself. Some cables have a connector with locking tabs; if you are dis-
connecting this type of cable, press in on the locking tabs before disconnecting
the cable. As you pull connectors apart, keep them evenly aligned to avoid bend-
ing any connector pins. Also, before you connect a cable, make sure that both
connectors are correctly oriented and aligned.
tacts on a card. Hold a card by its edges or by its metal mounting bracket. Hold a
component such as a microprocessor chip by its edges, not by its pins.
static damage, discharge static electricity from your body before you touch any of
your computer’s electronic components, such as the microprocessor. You can do so
by touching an unpainted metal surface on the computer chassis.