Dell XPS 710 - Manual (Page 38)

Memory
You can increase your computer memory by installing memory modules on the system board.
Your computer supports DDR2 memory. For additional information on the type of memory supported by your computer, see Memory .
DDR2 Memory Overview
l DDR2 memory modules should be installed in pairs of matched memory size and speed. If the DDR2 memory modules are not installed in matched pairs,
the computer will continue to operate, but with a slight reduction in performance. See the label on the upper-right or upper-left corner of the module to
determine the module's capacity.
The recommended memory configurations are:
¡ A pair of matched memory modules installed in DIMM connectors 1 and 2
or
¡ A pair of matched memory modules installed in DIMM connectors 1 and 2 and another matched pair installed in DIMM connectors 3 and 4
l If you install mixed pairs of PC2-4300 (DDR2 533-MHz) and PC2-5300 (DDR2 667-MHz) memory, the modules function at the speed of the slowest
module installed.
l Be sure to install a single memory module in DIMM connector 1, the connector closest to the processor, before you install modules in any other
connector.
.
NOTE: This slot is
not available in the
dual-graphics
configuration
13 PCI-Express x16 card slot
(SLOT2)
14 PCI card slot (SLOT3)
NOTE: This slot is not
available in the dual-
graphics configuration
15 PCI-Express x16
card slot (SLOT4)
16 PCI card slot (SLOT5) 17 PCI card slot (SLOT6) 18 PCI-Express x8
card slot (SLOT7)
19 RTC reset jumper (RTCRST) 20 battery socket (BATTERY) 21 password jumper
(PASSWORD)
22 power connector (POWER2) 23 floppy drive (DSKT) 24 card cage fan
connector
(FAN_CAGE)
25 processor fan connector
(FAN2_CPU)
NOTICE: The FAN2_CPU
connector is not currently used
on this system and is reserved
for future use. Do not attach
the primary CPU fan to the
FAN2_CPU connector.
26 primary processor (CPU) 27 processor fan
connector
(FAN1_CPU)
NOTE: Always install DDR2 memory modules in the order indicated on the system board.
NOTICE: Do not install ECC memory modules.