Dell PowerEdge R905 - Manual (Page 5)

Getting Started With Your System
3
System Features
This section describes the major hardware and software features of your
system. It also provides information about other documents you may
need when setting up your system and how to obtain technical assistance.
• Two or four dual-core or quad-core AMD Opteron™ 8000 Series
processors.
• A minimum of 2 GB (dual-processor systems) or 4 GB (four-processor
systems) of 667-MHz DDR2 memory modules. Memory is upgradable
to a maximum of 128 GB (256 GB when 8-GB memory modules are
available) by installing combinations of 512-MB, 1-GB, 2-GB, 4-GB,
or 8-GB (when available) memory modules in the 32 memory module
sockets (8 per processor) on the system board and Processor Expansion
Module (PEM).
• 800-MHZ DDR2 memory modules are supported in restricted
configurations.
• An optional slim-line SATA DVD-ROM drive, slim-line SATA DVD-RW
drive, or a combination CD-RW/DVD drive (when available).
NOTE:
DVD devices are data only.
• Support for up to five 3.5-inch hot-plug SAS hard drives or up to eight
2.5-inch hot-plug SAS hard drives.
• An optional external USB diskette drive.
• An optional external USB optical drive.
• Two hot-pluggable, 1100W high efficiency power supplies in a 1 + 1
redundant configuration. The power supplies support an input voltage
range from 100 V to 240 V.
• Four hot-pluggable system cooling fans.
The system board provides the following features:
• The baseboard has CPU 1 and CPU 2 sockets with 16 DIMM slots.
• CPU 3 and CPU 4 and their 16 DIMM slots are on a separate PEM.
• Dedicated PCIe slot for a SAS controller.