If the link integrity light is off (see "controls – Dell XPS 720 H2C (Mid 2007) User Manual
Page 165
Appendix
165
Drives
Available devices
Serial ATA drive, floppy drive, memory devices, Blu-ray™ Disc
drive, DVD drive, DVD-RW drive, CD-RW/DVD combo drive,
and media card reader
Externally accessible:
two 3.5-inch drive bays
four 5.25-inch drive bays
Internally accessible:
four 3.5-inch drive bays for hard drives
Connectors
External connectors:
IEEE 1394
front and back-panel 6-pin serial connectors
Network adapter
RJ45 connector
PS/2 (keyboard and mouse)
two 6-pin mini-DIN
USB
two front-panel, six back-panel, and two internal
USB 2.0–compliant connectors
System board connectors:
IDE drive
one 40-pin connector
Serial ATA
six 7-pin connectors
Floppy drive
34-pin connector
Fan
three 5-pin connectors
Liquid cooling (optional)
one 12-pin connector
PCI
three 124-pin connectors
PCI Express x1
36-pin connector
PCI Express x16 (SLOT7); card
length up to 17.8 cm (7 inches
only)
164-pin connector
PCI Express x16
three 164-pin connectors
Controls and Lights
Power control
push button
Power light
green light — Blinking green in sleep state; solid green for power-
on state.
amber light — Blinking amber indicates a problem with an
installed device; solid amber indicates an internal power problem.
Hard-drive access light
green