Dell Precision R5500 (Early 2011) - Manual (Page 5)

Video
Video type Discrete — PCI Express x16 graphics card;
Up to two PCI Express X16 graphics cards,
maximum of 450 W
Memory
Memory module connector twelve DIMM slots
Memory module capacity 1 GB, 2 GB, 4 GB, 8 GB, and 16 GB
Type 1066 Mhz or 1333 MHz DDR3, ECC only
Minimum memory 2 GB
Maximum memory 192 GB
Drives
Externally accessible:
Slimline SATA optical bays one
2.5 inch drive bays five SATA drives with onboard Intel
controller, or six SAS drives with SAS/
PERC 6iR cards
Internally accessible none
Control Lights And Diagnostic Lights
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.
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