Fujitsu N800 用户手册

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页码 142
100
 
 U41243-J-Z156-1-76
Boards in hot-plug PCI slot
System expansions
After a new PCI board is installed, the locking mechanism must be rotated back 
into place to activate the microswitch and secure the board in the slot (figure 26 
on page 99/PCI sl
ot activated). If an attempt is made to pull out the related 
board despite the green LED being lit, the microswitch disconnects the slot from 
the power supply to protect the board and system from damage.
The hot-plug function is not supported by the operating systems such as 
Windows NT 4.0, Windows 2000 and SCO UNIX Ware (supported by NetWare 
5.0). To nevertheless already make the hot-plug function partially available 
under Windows NT 4.0 and Windows 2000 PCI hot-plug utility is provided with 
the server start-CD which enables the necessary function for the swapping of 
PCI boards of same (hot-swap) type (see section “Installing PCI hot-plug 
software” on page 72).
LED indicators
The following table shows the possible display modes and their meaning:
Voltage 
indicator 
(green)
Warning 
indicator 
(yellow)
Status description
OFF
OFF
Emergency-off status
The PCI slot locking mechanism was loosened 
without the intervention of the operating system.
The slot is powered down and disconnected from 
the PCI bus. 
OFF
ON
Hot-plug status
There are two different reasons for this status:
A board is installed in this slot. The board has 
been powered down and disconnected from the 
PCI bus. It can be removed from the slot without 
danger.
No board is installed in this slot. If a board has 
been removed under monitoring by the PCI hot-
plug utility, then a new board of the same type 
can be installed.
Table 26:  LED status indicators