Siemens SIMATIC Rack PC 840 Manual page 85

"PCI Devices" Field
If the PCI devices field is selected, the following submenu appears:
Figure 5-11
Option ROM
Scan:
Enable Master:
Latency Timer
SIMATIC Rack PC 840 Manual
A5E00104826-03
PhoenixBIOS Setup Utility
Advanced
PCI Devices, Slot #1
Option Rom Scan [Enabled]
Enable Master: [Enabled]
Latency Timer [Default]
Help Select Item
F1
ESC Exit Select Menu
Submenu "PCI Devices, Slot #1"
[Enabled] The option ROM of the PCI module (if present) is
enabled
[Disabled] The option ROM of a PCI module is disabled.
[Enabled] This slot can assume the PCI master function
[Disabled] This slot can only operate as a PCI slave.
[Default] The number of active PCI clock cycles of the master
modules are determined by the module
[0020H With these settings, the maximum active PCI clock
to cycles are set to the selected value.
00E0H]
Configuring the SIMATIC Rack PC 840
Item Specific Help
Initialize device expansion
rom
+ / – Change Values F9
Enter Select
Sub-Menu F10
Setup Defaults
Save and Exit
5-15