Dell DR4000 Owner's Manual page 16

Item Indicator, Button, or
Connector
7 PCIe expansion card
slots using riser card
8 System identification
connector
9 System status
indicator
10 System identification
button
11 Power supply 2 (PS2)
12 Power supply 1 (PS1)
16
About Your System
Icon Description
Connects one internal and three
external PCI Express Generation 2
expansion cards.
Slot 1: PCIe x4, half-length, full-height
Slot 2: PCIe x4, full-length, full-height
Slot 3: PCIe x8, half-length, full-height
Slot 4: PCIe x4, internal slot for
integrated card
NOTE:
Connects the optional system status
indicator assembly through the
optional cable management arm.
Lights blue during normal
system operation.
Both the systems management software
and the identification buttons located
on the front and back of the system can
cause the indicator to blink blue to
identify a particular system.
Lights amber when the system needs
attention due to a problem.
The identification buttons on the front
and back panels can be used to locate
a particular system within a rack.
When one of these buttons is pushed,
the blue system status indicator on the
chassis back blinks until one of the
buttons is pushed again.
750 W redundant power supply
750 W redundant power supply
All slots are x8 connectors.