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发表于 2006-10-29 16:41
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1.14 Onboard Power Button
, d6 `% r0 J1 M6 j& GCAUTION3 U Q, o% ^! t! u8 K
Electrostatic discharge (ESD) can damage components. The onboard power button' P. G9 P, O- j- _& S
should be used only at an ESD workstation using an antistatic wrist strap and a. j+ w, l1 Y6 Y/ G$ e! o
conductive foam pad. If such a station is not available, some ESD protection can be
0 D5 V; j4 T. s9 G- ^* u* Y) Fprovided by wearing an antistatic wrist strap and attaching it to a metal part of the+ o- i: d- p B$ M
computer chassis.
/ A" b k+ \$ i* C. w7 qThe board provides a power button that can be used to turn the computer on or off.
+ J4 \2 Y( e O/ E aThis button is intended for use at integration facilities to remove standby power before9 ]' w9 ?: B* E! ?, ]' t
making changes to the system configuration, or for testing purposes.
, ?5 {5 W7 u' A2 n) e, M3 }The power button on the front panel is recommended for all other instances of turning
8 l8 H7 @6 t! f+ T: p+ rthe computer on or off. To turn the computer off using the onboard power button,
9 E7 y; s. h2 }# a7 T/ ^+ [$ Nkeep the button pressed down for three seconds.
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) G" }3 d/ y7 @; U! \1.15 Onboard LEDs
. q4 H" S- K6 x1 O, v. VIn addition to the standby power indicator, the board contains two LEDs that indicate% f2 U( r, l9 M" l9 @
the following:
' n L2 Q S0 ^ }& a9 `- G• The CPU LED indicates an elevated temperature on the processor that could effect
$ ?5 x( W( o% ], o# P. |/ q5 a* |performance, N. L" c! G; x* j2 J# d( u# T+ I
• The VR LED indicates an elevated temperature in the processor voltage regulator) J. t7 J N/ K3 _& ^% F
circuit that could effect performance7 A8 i L, i0 O
Figure 16 shows the locations of the LEDs. |
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