IBM 865511Y Hardware Maintenance Manual - Page 40

(RAM). Because your server can access data in RAM faster than it can access data from ROM, programs run faster when ROM shadowing is enabled. If you install an adapter that has its own ROM, you can enable the ROM shadowing option for that adapter to speed up its performance. Note The ROM Shadowing option might not work on adapters that use memory-mapped I/O, such as network adapters. PCI Control, PCI Adapter Reset, PCI Parity, Network Adapters, Mass Storage Adapters, Display Adapters, Multimedia Devices, Communication Adapters, Serial Adapters. Use PCI control to enable or disable PCI parity and bus mastering for the PCI adapters installed in your server. PCI Adapter Reset can be enabled or disabled. PCI parity allows parity checking of data across the PCI bus. Some adapters do not generate parity and will require the PCI Parity option be set to Disabled. Bus mastering lets installed bus master PCI adapters process information without using the microprocessor. Note The default bus master setting for all devices is enable. Do not change this setting. Some devices or adapters might not work properly if the bus master function is enabled when the system is restarted. The PCI Control Menu is Setup allows you to disable bus mastering for any device that is displayed on the menu. Devices not displayed on the menu cannot be disabled. Note If PCI adapters do not operate properly, you might need to disable the PCI Bus Master option. Plug and Play Control, Set Device Node, Address Decode, Plug and Play Operating System. Use Plug and Play Control to change certain settings for Plug and Play devices. Set Device Node: When this option is disabled, programs will not be able to make changes to the power-on configuration. Address 32 Netfinity Server HMM