Dell Precision Rack 7910 Dell Precision Rack 7910 Owners Manual - Page 119

Internal connectors, Specification, Controls and Lights, Center Riser Option 3: Default

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Internal connectors Internal USB System power Power distribution board communication Front panel control Systems fans Host card remote power control CPU/Memory power Memory Risers: Riser 1 PCI Express Center Riser Option 3: Default PCI Express Left Riser PCI Express Front IO: Front USB Front panel control HDD Back Panel : SATA Power Specification One 4-pin, USB 3.0-compliant one 24-pin connector one six-pin connector one 28-pin connector six four-pin connectors one two-pin connector four four-pin connectors twenty four 240-pin connectors (DDR4) three 164-pin connectors (x8) two 164 pin connectors (x8) one 164 pin or two 164 pin one 14-pin connector one 28-pin connector two 36-pin Mini-SAS connectors; eight 29-pin HDD connectors one 14-pin connector Table 15. Controls and Lights Controls and Lights Power button light: System ID button and light Drive activity light Network link integrity lights (front): Specification off - system is off or unplugged. solid blue light - computer is operating normally. blinking blue light - computer is in stand by. solid amber light - the computer does not start, indicating a problem with the system board or power supply. blinking amber light - indicates a problem has occurred with the system board. blue light - flashes (front and back of chassis) when the button is pressed. Press the button again to turn it off. blue light - blinking blue light indicates that the computer is reading data from, or writing data to the hard drive. blue light - A good connection exists between the network and the computer. 119

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Internal connectors
Specification
Internal USB
One 4-pin, USB 3.0-compliant
System power
one 24-pin connector
Power distribution board communication
one six-pin connector
Front panel control
one 28-pin connector
Systems fans
six four-pin connectors
Host card remote power control
one two-pin connector
CPU/Memory power
four four-pin connectors
Memory
twenty four 240-pin connectors (DDR4)
Risers:
Riser 1
PCI Express
three 164-pin connectors (x8)
Center Riser Option 3: Default
PCI Express
two 164 pin connectors (x8)
Left Riser
PCI Express
one 164 pin or two 164 pin
Front IO:
Front USB
one 14-pin connector
Front panel control
one 28-pin connector
HDD Back Panel :
SATA
two 36-pin Mini-SAS connectors; eight 29-pin
HDD connectors
Power
one 14–pin connector
Table 15. Controls and Lights
Controls and Lights
Specification
Power button light:
off — system is off or unplugged.
solid blue light — computer is operating normally.
blinking blue light — computer is in stand by.
solid amber light — the computer does not start, indicating a problem
with the system board or power supply.
blinking amber light — indicates a problem has occurred with the
system board.
System ID button and light
blue light — flashes (front and back of chassis) when the button is
pressed. Press the button again to turn it off.
Drive activity light
blue light — blinking blue light indicates that the computer is reading
data from, or writing data to the hard drive.
Network link integrity lights
(front):
blue light — A good connection exists between the network and the
computer.
119