Your system supports DDR3 registered DIMMs (RDIMMs) or ECC unbuffered DIMMs (UDIMMs). Single and dual-rank DIMMs can be 1067- or 1333-MHz, and quad-rank DIMMs can be 1067-MHz.
The system contains 18 memory sockets split into two sets of nine sockets, one set for each processor. Each nine-socket set is organized into three channels of three memory sockets per channel. The first socket of each channel is marked with white release levers.
The maximum memory that is supported on your system varies according to
the types and sizes of memory modules being used:
Single-rank and dual-rank RDIMMs of sizes 2-GB, 4-GB, and 8-GB (when available) are supported for a total of up to 144 GB.
Quad-rank RDIMMs (two per channel) are supported for a total of up to 96 GB.
1-GB and 2-GB UDIMMs are supported for a total of up to 24 GB.
General Memory Module Installation Guidelines
To ensure optimal performance of your system, observe the following general
guidelines when configuring your system memory.
RDIMMs and UDIMMs cannot be mixed.
No more than two UDIMMs can be populated per channel.
Except for memory channels that are unused, all populated memory channels must have identical configurations.
In a dual-processor configuration, the memory configuration for each processor must be identical.
Memory modules of different sizes can be mixed within a memory channel (for example, 2-GB, 8-GB, and 4-GB), but all populated channels must have identical configurations.
For Optimizer Mode, memory modules are installed in the numeric order of the sockets beginning with A1 or B1.
For Memory Mirroring or Advanced ECC Mode, the three sockets furthest from the processor are unused and memory modules are installed beginning with socket A2 or B2 and proceeding in the numeric order of the remaining sockets (for example, A2, A3, A5, A6, A8, and A9).
Advanced ECC Mode requires x4 or x8 DRAM device widths.
The memory speed of each channel depends on the memory
configuration:
For single or dual-rank memory modules:
One memory module per channel supports up to 1333 MHz.
Two memory modules per channel supports up to 1067 MHz.
Three memory modules per channel are limited to 800 MHz,
regardless of memory module speed.
For quad-rank memory modules:
One memory module per channel supports up to 1067 MHz.
Two memory modules per channel are limited to 800 MHz, regardless of memory module speed.
If a quad-rank memory module is installed, then only one other memory module can be added to that channel.
If quad-rank memory modules are mixed with single- or dual-rank modules, the quad-rank modules must be installed in the sockets with the white release levers.
If memory modules with different speeds are installed, they will operate at the speed of the slowest installed memory module(s). _________________ MemoryToday.com โทร.084-959-9000
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