HPP Enterprises 6440B - Manual (Page 15)

DDR3 PC3-10600 SDRAM (1333 MHz)*
Two SODIMM slots supporting dual-channel memory
SODIMM sizes supported: 1024 MB, 2048 MB, and 4096 MB
Standard Memory 1024 MB (1024 MB x 1)
2048 MB (2048 MB x 1 or 1024 MB x 2)
3072 MB (2048 MB + 1024 MB)
4096 MB (4096 MB x 1 or 2048 MB x 2)
Optional Memory
Upgrades Support for up to 8192 MB of memory with the installation of optional DDR3 SDRAM memory kits.
Both memory slots are user-accessible. Please refer to the Hardware and Software Guide for
installation procedures. Maximized dual-channel performance requires SODIMMs of the same size
and speed in both memory slots.
Up to Slot 1 Slot 2
1024 MB 1024 MB Empty
2048 MB 2048 MB Empty
2048 MB 1024 MB 1024 MB
3072 MB 2048 MB 1024 MB
4096 MB 4096 MB Empty
4096 MB 2048 MB 2048 MB
8192 MB 4096 MB 4096 MB
* With some processors, memory bus runs at a maximum of 1066 MHz.
NOTE: This chart does not represent all possible memory configurations. Due to the non-industry
standard nature of some third-party memory modules, we strongly recommend using only HP-
branded memory modules to ensure compatibility. If you mix memory speeds, the system will
perform at the lower memory speed. Full availability of 4 GB or more of memory requires a
Windows 64-bit operating system or Linux. With Windows 32-bit operating systems, the amount of
usable memory is dependent upon your configuration, so that above 3 GB all memory may not be
available due to system resource requirements.
Memory Upgrades HP 1 GB (DDR3 1333 MHz) SODIMM AT911AA
HP 2 GB (DDR3 1333 MHz) SODIMM AT912AA
HP 4 GB (DDR3 1333 MHz) SODIMM AT913AA
QuickSpecs
HP ProBook 6440b Notebook PC
Memory
DA - 13462 Worldwide QuickSpecs — Version 6 — 2.10.2010 Page 15