Sun Microsystems Netra X4200 M2, Service Manual

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18 Netra X4200 M2 Server Service Manual • May 2007
BIOS Option ROM Size Limitation
The BIOS Option ROM is 128 Kbytes. Of these 128 Kbytes, approximately 80 Kbytes
are used by the VGA controller, the LSI controller, and the onboard network
interfaces. Approximately 48 Kbytes remain for the Option ROM.
AMD PowerNow! Feature Disabled by Default
The AMD PowerNow! feature, which is accessed from the BIOS Setup utility
Advanced menu, is disabled by default on Netra X4200 M2 servers. If you want to
enable this feature, review the
Netra X4200 M2 Server Product Notes (820-0067) for
any outstanding known issues for your operating system.
Descriptions of the BIOS Setup Screens
TABLE 2-2
contains summary descriptions of the seven top-level BIOS Setup screens.
FIGURE 2-5
summarizes the BIOS menu tree
TABLE 2-2
BIOS Setup Screens Summary
Screen Description
Main General system information.
Advanced Configuration interface for the CPUs, IDE, SuperIO, ACPI, Event
Log, HyperTransport, IPMI, MPS, PCI Express Confiuration,
PowerNow!, Remote Access, and USB.
PCI/PnP Configure Plug-and-Play (PnP) devices by the BIOS (default), or by
the operating system (if applicable).
Boot Configure the boot device priority (hard disk drives and the ATAPI
DVD drive).
Security Install or change the user and supervisor passwords.
Chipset Configuration options for the NorthBridge and SouthBridge devices,
and PCI-X devices.
Note that the Memory Chipkill option is enabled by default.
Enabling Chipkill improves system reliability but degrades system
performance under specific applications.
Exit Save or discard changes.