PCchips M921 Series, User Manual

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Mainboard User’s Manual
AGP & P2P
Bridge Control This item has several sub-items: AGP
Aperture Size defines the size of the aperture
if you use an AGP graphics adapter; AGP
Mode allows you to enable or disable the
caching of display data for the processor video
memory;
AGP Driving Control signals
driving current on AGP cards to auto or
manual;
AGP Fast Write enables or disables
the caching of display data for the video memory
of the processor;
AGP Master 1 WS Write/
Read implements a single delay when writing/
reading to the AGP Bus.
CPU & PCI Bus
Control This item has several sub-items: writes from
the CPU to PCU bus are buffered when
CPU
to PCI Write Buffer is enabled, or aren’t
when disabled; When PCI Master 0 WS
Write is enabled, writes to the PCI bus are
executed with zero wait states; Enable PCI
Delay Transaction to support compliance with
PCI specification version 2.1.
Memory Hole This item is used to reserve memory space for
ISA expansion cards that require it.
System BIOS
Cacheable/Video
RAM Cacheable These items allow the video and system to be
cached in memory for faster execution. Leave
these items at the default value for better
performance.
Memory
Parity/ECC
Check If this item is enabled it allows the system to
use parity checking and ECC (Error Correcting
Code) to catch errors in the system memory.
Enabling this item might have an impact on
overall system performance.
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