Microsoft System Board Computer Hardware User Manual


 
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Award BIOS Setup Utility
SDRAM CAS Latency Time
The default setting is 3 which is 3 clock cycles for the CAS latency.
DRAM Data Integrity Mode
The ECC (Error Checking and Correction) function is supported only
in x72 (72-bit) PC SDRAM DIMMs. If you are using x64 (64-bit) PC
SDRAM DIMMs, set this field to Non-ECC.
Non-ECC Uses x64 PC SDRAM DIMM.
ECC This option allows the system to recover from memory
failure. It detects single-bit and multiple-bit errors, then
automatically corrects single-bit error.
System BIOS Cacheable
When this option is enabled, accesses to the system BIOS ROM
addressed at F0000H-FFFFFH are cached, provided that the cache
controller is enabled. The larger the range of the Cache RAM, the
higher the efficiency of the system.
Video BIOS Cacheable
As with caching the system BIOS, enabling the Video BIOS cache
will allow access to video BIOS addresssed at C0000H to C7FFFH to
be cached, if the cache controller is also enabled. The larger the
range of the Cache RAM, the faster the video performance.
Video RAM Cacheable
When enabled, it allows the video RAM to be cacheable thus
providing better video performance. If your graphics card does not
support this function, leave this field in its default setting - Disabled.
8 Bit I/O Recovery Time and 16 Bit I/O Recovery Time
The recovery time is the length of time, measured in SYSCLK, which
the system will delay after the completion of an input/output
request. This delay takes place because the CPU is operating so
much faster than the input/output bus that the CPU must be
delayed to allow for the completion of the I/O. This item allows you
to determine the recovery time allowed for 8-bit I/O or 16-bit I/O.