Dell PP39L Setup Manual page 74

Specifications
Computer Information
System chipset
Data bus width
DRAM bus width
Processor
address bus
width
Flash EPROM
Graphics bus
PCI bus
72
TBD
ExpressCard
ExpressCard Intel ICH9M
controller
Cards supported ExpressCard/34 (34 mm)
1.5 V and 3.3 V
Connector size 26 pins
Memory
Connectors two user-accessible
SODIMM connectors
Capacities 1 GB, 2 GB, and 4 GB
Memory type 1067/1333 MHz SODIMM
DDR3
Minimum Memory 1 GB (single channel)
Maximum 8 GB
Memory (dual channel - 4GB x 2)