Dell OptiPlex 7040-Small Form Factor Owner's Manual page 49

Table 29. External connectors (continued)
Feature
Table 30. Internal connectors
Feature
PCI Express x16 (wired as x4) data width (maximum)
— four PCI Express lanes
PCI Express x16 data width (maximum) — 16 PCI
Express lanes
Serial ATA
Memory
Internal USB
System fan
SSD
Front panel control
Processor
Processor fan
Service mode jumper
Password clear jumper
RTC reset jumper
Internal speaker
Intruder connector
Power connector
Table 31. Controls and lights
Feature
Front of the computer
Power button light
Drive activity light
Back of the computer
Link integrity light on integrated network adapter
Network activity light on integrated network
adapter
Power supply diagnostic light
Specification
● PS2 Mouse 6-pin connector
Specification
164-pin connector
164-pin connector
Three 7-pin connectors
Four 288-pin connectors
10-pin connector
4-pin connector
M.2 22x80 socket3
5-pin connector
1151-pin connector
4-pin connector
2-pin connector
2-pin connector
2-pin connector
4-pin connector
3-pin connector
One 8-pin for PSU, one 4-pin for CPU, one 6-pin for SATA power
Specification
White light — Solid white light indicates power-on state; slow
blinking white light indicates sleep state of the computer.
White light — Slow blinking white light indicates that the computer is
reading data from or writing data to the hard drive.
● Green — a 10 Mbps connection exists between the network and
the computer.
● Green — a 100 Mbps connection exists between the network and
the computer.
● Orange — a 1000 Mbps connection exists between the network
and the computer.
● Off (no light) — the computer is not detecting a physical
connection to the network.
Yellow light — A blinking yellow light indicates that network activity
is present.
Green light — The power supply is turned on and is functional. The
power cable must be connected to the power connector (at the back
of the computer) and the electrical outlet.
Specifications 49