Abit BG-71, User Manual

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BIOS Setup 4-11
#
Active to Precharge Delay:
The options are: 7, 6, and 5.
#
DRAM RAS# to CAS# Delay
This item controls the latency between the DRAM active command and the read/write
command. The options are: 2 and 3.
#
DRAM RAS# Precharge:
This item controls the idle clocks after issuing a precharge command to the DRAM.
Turbo Mode:
This item enhances performance by selecting
Enabled
, but the system night be unsteady. The
default setting is Disabled .
Command Pre Clock:
This item enhances performance by selecting Optimal , but the system night be unsteady. The
default setting is Auto .
System BIOS Cacheable:
You can select Enabled or Disabled. The default setting is Enabled . When you select Enabled
allows caching of the system BIOS ROM at F0000h-FFFFFh, resulting in better system
performance. However, if any program writes to this memory area, a system error may result.
Video BIOS Cacheable:
You can select Enabled or Disabled. The default setting is Enabled . Enabled allows caching
of the video BIOS, resulting in better system performance. However, if any program writes to
this memory area, a system error may result.
Memory Hole At 15M-16M:
Two options are available: Enabled and Disabled. The default setting is Disabled . This option
is used to reserve the memory block 15M-16M for ISA adapter ROM. Some special
peripherals need to use a memory block located between 15M and 16M, and this memory
block has a size of 1M. We recommend that you disable this option.
Delayed Transaction:
Two options are available: Enabled and Disabled. The default setting is
Disabled
. Set the
option to enabled or disabled PCI 2.1 features including passive release and delayed
transaction for the chipset. This function is used to meet the latency of PCI cycles to or from
the ISA bus. This option must be enabled to provide PCI 2.1 compliance. If you have an ISA
card compatibility problem, you can try to enable or disable this option for optimal results.
User’s Manual