Fujitsu N800 manual Boards in hot-plug PCI slot, LED indicators, Voltage Status description

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 slot 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	Warning	Status description
indicator	indicator
(green)	(yellow)
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

100 U41243-J-Z156-1-76