NEC Express5800/A2000 Przewodnik Konfiguracji Pobierz pdf (Strona 28)

CONFIGURATION GUIDE – NEC Express5800/A2040b, A2020b, A2010b, A1040b

NEC Corporation Revision 8.0 – April 2015

Memory Clock

DDR3 Memory clock depends on CPU, Memory Configuration, System BIOS settings. Please refer below for

the maximum clock. Please refer to “Memory” of “Reference” section for the details.

CPU

Memory

Configuration/Mode

Memory Type

No. of

DIMMs (per

1CPU)

Clock

1.35V

1.5V

Xeon®

E7-4890v2

E7-4870v2

E7-4860v2

E7-8891v2

E7-8893v2

Independent Mode

RDIMM(8, 16GB)

Up to 16

1333 MHz

LRDIMM (32GB)

Up to 16

1333 MHz

LRDIMM (64GB)

Up to 16

1066 MHz

Lockstep Mode

RDIMM (8, 16GB)

Up to 16

1333 MHz

1600 MHz

LRDIMM (32GB)

Up to 16

1333 MHz

1600 MHz

LRDIMM (64GB)

Up to 16

1066 MHz

Xeon®

E7-4830v2

E7-4820v2

Independent Mode

RDIMM(8, 16GB)

Up to 16

1066 MHz

LRDIMM (32GB)

Up to 16

1066 MHz

LRDIMM (64GB)

Up to 16

1066 MHz

Lockstep Mode

RDIMM (8, 16GB)

Up to 16

1333 MHz

1600 MHz

LRDIMM (32GB)

Up to 16

1333 MHz

1600 MHz

LRDIMM (64GB)

Up to 16

1066 MHz

Xeon®

E7-4809v2

Independent Mode

RDIMM(8, 16GB)

Up to 16

1066 MHz

LRDIMM (32GB)

Up to 16

1066 MHz

LRDIMM (64GB)

Up to 16

1066 MHz

Lockstep Mode

RDIMM (8, 16GB)

Up to 16

1333 MHz

LRDIMM (32GB)

Up to 16

1333 MHz

LRDIMM (64GB)

Up to 16

1066 MHz

NOTE:

 Default Memory voltage setting (at the server delivery) is 1.35V (power saving). Memory voltage can be

changed by System BIOS Set-up menu.

 At Lockstep mode, strongly recommends to change memory voltage to 1.5V by BIOS set-up menu.

 Memory voltage is automatically 1.5V under the following configuration (cannot set 1.35V)

 64GB LRDIMM installed

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