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RX600 S4 Options Guide 7
Preface Extensions and conversions
1.3 Extensions and conversions
Additional processors
The system board can be upgraded to include up to four processors. You may
only use processors of the same type; all processors must have the same
frequency and cache size.
Extending the main memory
The system board provides slots for four memory boards, each of which can
accommodate up to eight memory modules. The slots are suitable for DDR-II /
533 or 667 MHz Fully Buffered DIMM modules with up to 8 Gbytes capacity per
DIMM module. This allows a maximum memory configuration of 256 Gbytes.
Additional accessible drives
You can add a CD/DVD drive in 0.5x5.25-inch format or a tape drive in 5.25x1.6-
inch format.
Additional controllers in PCI slots
The system board has seven PCI Express slots:
● Slots 1-4 are hot-plug PCI slots which can be fitted with hot-pluggable
controllers (the hot-plug PCI slots are described in the operating manual).
They have a bandwidth of 4 GB/s.
● Slots 5 through 7 are non-hot-plug PCI slots with a bandwidth of 2 GB/s.
● Slots 4 and 5 may only be fitted with half-length modules.
Battery (BBU) for the RAID5 controller
An optional battery (intelligent battery backup unit = iBBU) is available for the
SAS RAID 5 controller to protect its memory contents in the event of a power
failure.