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2133 MHz memory is being reported as 1866/1600 MHz on the Precision T5810/T7810/T7910 Desktop & R7910 Rack Mount Workstation.

Summary: This article provides information on why 2133 MHz memory is being reported as 1866/1600 MHz on the Precision T5810/T7810/T7910 Desktop & R7910 Rack Mount Workstation.

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Article Content


Symptoms

Memory speeds may be reported incorrectly on the Precision Tower 5810/7810/7910 Desktop & R7910 Rack Mount Workstation.

The Precision T5810/T7810/T7910 Desktop & R7910 Rack Mount Workstations support memory speeds of 2133 MHz. System users have reported that with 2133 MHz memory installed, the system shows memory speed of 1866 or 1600 MHz.

Cause

System may not support the memory speed being installed.

Resolution

Check the memory speeds supported by the processor to verify system memory speed.

Precision T5810, T7810 & T7910 Desktop & R7910 Rack Mount Workstations are configured with a processor from the Intel Xeon E5-1600 v3 or E5-2600 v3 product families. Though the chipset and memory slot on the motherboard support the 2133 MHz memory, not all of these processors support the higher memory speed of 2133 MHz. The computer system automatically reverts to the lowest memory speed of the two--memory and processor--when both do not support the same speed.

To achieve the maximum memory speed of 2133 MHz, both the memory and the corresponding processor that supports this speed must also be purchased or installed in the system. Reference the table below to verify which processors support the 2133 MHz memory:

Intel Xeon Processor Maximum memory speed supported
Intel Xeon E5-1603 v3 1866 MHz
Intel Xeon E5-1607 v3 1866 MHz
Intel Xeon E5-1620 v3 1866 MHz
Intel Xeon E5-1630 v3 1866 MHz
Intel Xeon E5-1650 v3 1866 MHz
Intel Xeon E5-1660 v3 1866 MHz
Intel Xeon E5-1680 v3 1866 MHz
Intel Xeon E5-2603 v3 1600 MHz
Intel Xeon E5-2609 v3 1600 MHz
Intel Xeon E5-2620 v3 1866 MHz
Intel Xeon E5-2623 v3 1866 MHz
Intel Xeon E5-2630 v3 1866 MHz
Intel Xeon E5-2637 v3 2133 MHz
Intel Xeon E5-2643 v3 2133 MHz
Intel Xeon E5-2650 v3 2133 MHz
Intel Xeon E5-2670 v3 2133 MHz
Intel Xeon E5-2667 v3 2133 MHz
Intel Xeon E5-2680 v3 2133 MHz
Intel Xeon E5-2687W v3 2133 MHz
Intel Xeon E5-2690 v3 2133 MHz
Intel Xeon E5-2695 v3 2133 MHz
Intel Xeon E5-2697 v3 2133 MHz

 


Article Properties


Affected Product

Precision Rack 7910, Precision Tower 5810, Dell Precision Tower 7810, Precision Tower 7910

Last Published Date

01 Jun 2021

Version

4

Article Type

Solution