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发表于 2006-10-29 16:41
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1.14 Onboard Power Button
6 k6 E/ f% J7 a- S0 i9 C( V7 LCAUTION9 J$ k3 }1 F8 l, _% |! e
Electrostatic discharge (ESD) can damage components. The onboard power button
. ~5 n* ?: i B. e1 Wshould be used only at an ESD workstation using an antistatic wrist strap and a. L: M( y8 J8 g
conductive foam pad. If such a station is not available, some ESD protection can be) O+ @7 o9 i6 E& K
provided by wearing an antistatic wrist strap and attaching it to a metal part of the" Q* a4 I4 K- Q i- M w- F( g
computer chassis.# D0 S3 d; ] \0 O% N" F
The board provides a power button that can be used to turn the computer on or off.
' Q5 a7 N" G2 o! [4 H- P0 ~This button is intended for use at integration facilities to remove standby power before
4 ?6 ~ |! b! zmaking changes to the system configuration, or for testing purposes.
- g5 N* o% ]$ C: }# ?) }The power button on the front panel is recommended for all other instances of turning
' y% Y L: ?. o% W% athe computer on or off. To turn the computer off using the onboard power button,8 N5 d8 W- F+ x* H
keep the button pressed down for three seconds.' d4 W: Y8 H$ _
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1.15 Onboard LEDs# c9 t4 x0 G5 u" \0 E& u
In addition to the standby power indicator, the board contains two LEDs that indicate
8 L/ W) m5 A* G" @6 e7 i# ~0 |5 \the following:
: d! d% ?2 f0 z7 v5 ~. m• The CPU LED indicates an elevated temperature on the processor that could effect# \$ R, {2 ]0 @ H8 [' J
performance" b4 i! S m N: H3 J, X9 W
• The VR LED indicates an elevated temperature in the processor voltage regulator' @8 w7 V3 t; M+ n; {7 N1 t+ ?; o
circuit that could effect performance
1 N: T h5 H1 {- }4 _( q$ NFigure 16 shows the locations of the LEDs. |
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