Fujitsu PRIMERGY DX920 S3 Manual de instrucciones - Página 9

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G
III
Section
- There are 6 memory slots per CPU for max.
=> max. 384GB for two CPU`s ( 192GB per CPU ), using LRDIMM
- The memory area is divided into 3 channels per CPU with 2 slots per channel
- Slot 1 of each channel belongs to memory bank 1, the slot 2 belongs to memory bank 2,
slot 3 belongs to memory bank 3
Registered, LR DIMMs and unbuffered memory modules can be selected
No mix of registered, load reduced and unbuffered modules allowed.
Memory can be operated at 1.5V or 1.35V, even if the modules are of low voltage type.
Memory operating voltage can be set within BIOS (1.5V is default setting for max. speed).
In a 2 DIMMs per channel configuration, following frequencies are supported:
- 1.5V - 1600MHz max (depending on CPU, special memory modules)
- 1.35V - 1333MHz max (depending on CPU)
SDDC (Chipkill) is supported for registered / load redueced x4 organized memory modules only
1.) In the "Independent Channel Mode" is following configuration possible
Channels can be populated in any order in Independent Channel Mode. All four
channels may be populated in any order and have no matching requirements. All
channels must run at the same interface frequency but individual channels may run at
different DIMM timings (RAS latency, CAS latency, and so forth)
No mix of registered, load reduced and unbuffered modules allowed.
2.) "Rank Sparing Mode" configuration
- Within a memory channel, one rank is a spare of the other ranks.
The Spare Rank is held in reserve and is not available as system memory
For the effective memory capacity, please refer to the spreadsheet below.
The BIOS is set to the rank sparing setting.
Minimum configuration is: 2x 1R, 2x 2R or 1x4R DDR3 module per channel
This mode is not supported by x8 organized memory modules
3.) "Performance Mode" configuration
- In this configuration, the memory module population ex factory is spread across all channels.
The BIOS is set to the max. performance for memory.
Minimum configuration is: 3x identical modules
4.) In the "Mirrored Channel Mode" is following configuration possible
- Each memory bank can optionally be equipped with 4x registered or load reduced
In each memory bank channel A and B / C and D of CPU 1 or channel E and F / G and H of CPU 2 have to be
equipped with identical modules for mirrored channel mode.
In channel B is always the mirrored memory of channel A of CPU 1
In channel E is always the mirrored memory of channel D of CPU 2
Minimum configuration is: 2x identical modules
This mode is not supported by x8 organized memory modules
G1
Memory
192GB LRDIMM (6x 32GB 4R)
96GB RDIMM (6x 16GB 2R)
24GB UDIMM (6x 4GB)
Fujitsu PRIMERGY Server
System configurator and order-information guide
PRIMERGY BX920 S3
Status: 2013-12-30
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