Integrated Dell Remote Access Controller 9 Attribute Registry

BIOS.ProcSettings.CpuInterconnectBusSpeed (Read or Write)

Description

This setting governs the frequency of the communication links among the CPUs in the system. Note that standard and basic bin processors support lower link frequencies than the advanced parts do. Maximum Data Rate indicates that the BIOS will run the communication links at the maximum frequency supported by the processors. You can also select specific frequencies that the processors support, which can vary. For best performance, you should choose the Maximum Data setting. Any reduction in the communication link frequency will affect the performance of non-local memory accesses and cache coherency traffic. In addition, it can slow access to non-local I/O devices from a particular CPU. However, if power saving considerations outweigh performance, you may want to reduce the frequency of the CPU communication links. If you do this, you should localize memory and I/O accesses to the nearest NUMA node to minimize the impact to system performance.

Only available if 2 or more CPUs are present. On 14G only MaxDataRate, 10GTps, and 9GTps

Legal Values

• MaxDataRate
• 10GTps
• 9GTps

Default Value

Not Applicable

Write Privilege

Server Control

License Required

iDRAC Express or iDRAC Enterprise

Dependency

Not applicable