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发表于 2006-10-29 16:41
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1.14 Onboard Power Button' F) R6 L5 h. ~5 X! Z) m2 H' j R
CAUTION0 @$ p8 V" ?" w7 r6 \: M
Electrostatic discharge (ESD) can damage components. The onboard power button
% F9 j3 A& c+ Ishould be used only at an ESD workstation using an antistatic wrist strap and a- `3 n" `# ]; u! S8 i. R
conductive foam pad. If such a station is not available, some ESD protection can be& m( @' Q* C( @
provided by wearing an antistatic wrist strap and attaching it to a metal part of the$ F e, f) Y$ O' Z
computer chassis.
; t4 u3 {1 U; @8 T! |The board provides a power button that can be used to turn the computer on or off.
5 o6 x, i T: k: @' hThis button is intended for use at integration facilities to remove standby power before* l2 f1 ~1 [. M8 i2 ^) `
making changes to the system configuration, or for testing purposes.
3 p: Z( i4 Y% y/ P; oThe power button on the front panel is recommended for all other instances of turning1 O% v( u5 E* ?& m2 e+ y
the computer on or off. To turn the computer off using the onboard power button,+ i& F) V b2 `: V. ^/ h* \5 k
keep the button pressed down for three seconds.
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" y4 i8 N8 G2 c3 \1.15 Onboard LEDs1 j* x/ x1 T/ R0 l2 j% y" s& R
In addition to the standby power indicator, the board contains two LEDs that indicate/ K8 A, d4 C& r2 u& m# E. O+ J
the following:& C6 _3 {+ I6 d/ ]0 V; \% q# i c
• The CPU LED indicates an elevated temperature on the processor that could effect
% Y: I$ ^* N& I. A' T5 z+ yperformance: R7 s8 C+ g3 C0 F3 D2 e
• The VR LED indicates an elevated temperature in the processor voltage regulator
. E$ `4 S7 R+ x6 _ H3 p' {circuit that could effect performance
& \ ?3 V0 {$ X( RFigure 16 shows the locations of the LEDs. |
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