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Huawei Server Brickland Platform BIOS Parameter Reference 23

This document describes the basic input/output system (BIOS) menu structure, parameters and common tasks based on the Brickland platform.
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QPI Configuration

QPI Configuration

This topic describes how to configure the QuickPath Interconnect (QPI) between processors on the QPI Configuration screen.

On the QPI Configuration screen, you can configure the QPI between processors, such as configuring the link frequency, bus resource allocation ratio, and IO resource allocation ratio.

Figure 5-21 shows the QPI Configuration screen. Table 5-18 describes the parameters on this screen.

Figure 5-21 QPI Configuration screen
Table 5-18 Parameters on the QPI Configuration screen

Parameter

Description

Default Value

Current QPI Link Frequency

Current QPI link frequency.

-

Link Frequency Select

Indicates the link frequency. If the QPI link frequency is set to a low value, the power consumption is reduced. However, the system performance will be affected. Set this parameter only when there are two or more CPUs. The options are as follows:

  • 6.4 GB/s
  • 8.0 GB/s
  • 9.6 GT/s (The Haswell CPU supports a maximum of 9.6 GT/s link frequency, and the IvyBridge CPU 8.0 GT/s link frequency.)
  • Auto

Auto

The default value of this parameter for the E9000 is 8.0 GT/s.

Link L0p Enable

Indicates whether to enable L0p. The options are as follows:

  • Enable
  • Disable

Enable

Link L1 Enable

Indicates whether to enable L1. The options are as follows:

  • Disable
  • Enable
  • Auto: enabled by default.

Auto

Legacy VGA Socket

Indicates the number of legacy VGA sockets. This parameter value ranges from 0 to 7.

0

COD Enable

Selects a link frequency. When the frequency of the QPI link is set to a low value, the power consumption is reduced but system performance is affected. Set this parameter only when there are two or more CPUs. The options are as follows:

  • Disable
  • Enable
  • Auto: disabled by default
NOTE:

E7-4820 v4 processors do not support COD search.

Auto

Home Dir Snoop with IVT-Style OSB Enable

Indicates the home directory snoop mode containing IVY-style OSB directory information.

  • Enable: enables the home directory snoop mode containing IVY-style OSB directory information.
  • Disable: disables the home directory snoop mode containing IVY-style OSB directory information.
  • Auto: enabled by default.

Auto

MMIOHBase (unavailable for the E9000)

Indicates the MMIOH base. The options are as follows:

  • 3.5TB
  • 13TB
  • 56TB
NOTE:

If GPUs are supported, set this parameter to its default value 3.5TB.

13TB

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Updated: 2018-12-03

Document ID: EDOC1000039573

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