Sun Microsystems Sun Fire X4100 - Manual (Page 31)

Chapter 2 Powering On and Configuring BIOS Settings 2-5
4. Modify the setup field and close the screen.
5. If you need to modify other setup parameters, use the arrow and Tab keys to
navigate to the desired screen and menu item, then repeat Steps 1 through 3.
Otherwise, go to Step 5.
6. Press and release the right arrow key until the Exit menu screen is displayed.
7. Follow the instructions on the Exit menu screen to save your changes and exit the
Setup utility.
2.3.2 BIOS Considerations
This section contains information and considerations regarding the system BIOS.
2.3.2.1 PCI Card Slot Booting Priority
See Section 3.4.14, “Replacing PCI Cards” on page 3-60 for Sun Fire X4100 servers or
Section 4.4.14, “Replacing PCI Cards” on page 4-61 for Sun Fire X4200 servers for the
locations of the PCI slots.
The slots for the PCI cards are detected by the BIOS during startup in this order:
■ Sun Fire X4100: PCIX Slot 0, PCIX Slot 1
■ Sun Fire X4200: PCIX Slot 0, PCIX Slot 2, PCIX Slot 3, PCIX Slot 4, PCIX Slot 1
2.3.2.2 BIOS Option ROM Size Limitation
The BIOS Option ROM is 128 KB. Of these 128 KB, approximately 80 KB are used by
the VGA controller, the LSI controller, and the network interface card.
Approximately 48 KB remain for the Option ROM.
2.3.2.3 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 Sun Fire X4100 and Sun Fire X4200
servers. Some problems have been observed when using this feature on certain
operating systems. If you want to enable this feature, first check the Sun Fire X4100
and Sun Fire X4200 Servers Product Notes (819-1162) for any outstanding known
issues for your operating system.