Product guide
34 Board Set Description
35MAXDATA PLATINUM 90004R Server System
Processor Overview
Each Intel
®
Itanium
®
2 processor plugs into a 700-pin Zero Insertion Force (ZIF) socket. Each processor
is powered by a 48 V power pod located adjacent to the processor on the processor board. Attached
to the top of each processor is a heat sink that dissipates thermal energy.
Memory Boards
The processor board is designed to support two memory boards (both of which must be installed for
the system to operate). The memory boards are installed on the primary and secondary side of the
processor board assembly.
The main components of the memory boards is described as follows:
• Eight 184-pin, DDR-SDRAM DIMM sockets support up to 16 GB of memory using eight 2 GB
DIMMs per memory board for a total of 32 GB per system.
• Two DMH (DDR Memory Hub) components of the E8870 chip set. This allows two Rambus
channels from the E8870-memory controller (SNC-M) to be extended to four DDR channels on
the memory boards. The Rambus channel supports 400 MHz operation and the DDR channels
support 100 MHz operation.
• An integrated 2.5 V to 1.25 V DC-to-DC converter provides voltage for DDR signal termination.
• I2C logic.
• Field Replaceable Unit (FRU) device ID accessed through a private I2C bus.
• Voltage/temperature sensors.
DIMMs must be installed on a memory board in groups of four (a group of four constitutes a row)
as shown in Installing DIMMs“.
!
CAUTION
DIMMs should only be installed, removed, or replaced by a technically qualied person.
!
CAUTION
The system does not support mixed-sized DIMMs or DIMMs from different vendors within the same
row.
NOTE
The BIOS automatically detects, sizes, and initializes the memory array, depending on the type,
size, and speed of the installed DIMMs. The BIOS reports memory size and allocation to the system
through conguration registers.