Dell DL2100 owner manual One of these buttons is pushed, Until one of the buttons is pushed, Again

Item	Indicator, Button, or	Icon	Description
	Connector
1	PCIe slot 1		PCI Express (Generation 2) x4-link
			expansion slot (full-height, 30.99-cm
			[12.2-in] length)
2	PCIe slot 2		PCIe x4-link Gen 2 expansion slot
			(low-profile, 24.13-cm [9.5-in] length)
3	PCIe slot 3		PCIe x8-link Gen 2 expansion slot
			(full-height, 24.13-cm [9.5-in] length)
			or
			optional PCIe x16-link Gen 2
			expansion slot (full-height, 24.13-cm
			[9.5-in]) (no slot 4 with this option)
4	PCIe slot 4		PCIe x8-link Gen 2 expansion slot
			(full-height, 24.13-cm [9.5-in] length)
5	power supply 1 (PS1)		870-W or 570-W power supply
6	power supply 2 (PS2)		870-W or 570-W power supply
7	system identification		The identification buttons on the front
	button		and back panels can be used to locate a
			particular system within a rack. When
			one of these buttons is pushed, the
			LCD panel on the front and the system
			status indicator on the back flash blue
			until one of the buttons is pushed
			again.
8	system status indicator		Provides a power on indicator for the
			back of the system
9	system status indicator		Connector for attaching a system
	connector		indicator extension cable that is used
			on a cable management arm
10	Ethernet connectors		Integrated 10/100/1000 NIC connectors
	(4)
11	USB connectors (2)		Connects USB devices to the system.
			The ports are USB 2.0-complaint

About Your System

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