Instruction manual

Index to the AlphaBIOS Menu Functions
5-20 AlphaServer 1000/1000A Supplement
Figure 5-13 Advanced CMOS Setup Menu
Advanced CMOS Setup F1=Help
Windows NT Console (AlphaBIOS)
PCI Parity Checking: Disabled

Power-up Memory Test: Enabled

AlphaBIOS Password Option: Disabled

Console Selection:
Press or to select the firmware console that will be presented
the next time the system is power-cycled.
ESC=Discard Changes F10=Save Changes
PK-0750-96
1. PCI Parity Error Checking
Possible settings for PCI parity checking are enabled and disabled by using this
setting. Parity checking is a method for ensuring data integrity across the PCI bus.
AlphaBIOS supports PCI option cards that generate parity as well as those that do
not. Unfortunately, many older, and even some newer, PCI option cards do not
fully comply with the PCI specification. One of the results of this non-compliance
can be incorrect generation of PCI parity.
To accommodate cards that do not correctly generate PCI parity, Alpha systems
with PCI expansion slots leave PCI parity checking disabled by default. If you are
certain that all of your PCI option cards correctly implement PCI parity generation,
you can turn parity checking on. If PCI parity checking results in unstable system
behavior, such as lockups, you can turn PCI parity checking off again.
If you discover that a card in your system does not correctly generate PCI parity,
you can check with the card manufacturer about getting an updated version of the
card with PCI parity generation correctly implemented.