BS61M
series
~44~
SDRAM CAS Latency
D
efault: 3T
SDRAM WR Retire Rate
Default: X-1-1-1
These items set the timing parameters for the installed SDRAM
(Synchronous Dynamic Random Access Memory). We recommend that you
leave these items at the default values.
CPU to PCI Burst Mem. WR
D
efault: Enabled
Writes from the CPU to the PCI bus are buffered when this item is enabled,
to compensate for the difference in speed between the CPU and the PCI bus.
The writes are not buffered and the CPU must wait until the write is complete
before starting another write cycle when the item is disabled. We recommend
that you leave this item at the default value Disabled.
System BIOS Cacheable
D
efault: Enabled
This item allows the system BIOS to be cached for faster performance. We
recommend that you leave this item at the default value enabled.
Video RAM Cacheable
D
efault: Enabled
Video RAM segment is cacheable if this item been enable.
Memory Hole at 15M-16M
D
efault: Disabled
In order to improve performance, certain space in memory can be reserved
for ISA cards. This memory must be mapped into the memory below 16MB.
AGP Aperture Size
D
efault: 64 MB
Select the size of the AGP aperture. The aperture is a portion of the PCI
memory address range dedicated for graphics memory address space. Host
cycle that hit the aperture range are forwarded to the AGP without any
translation. The choice 4, 8, 16, 32, 64, 128, 256.
Concurrent Function(MEM)
D
efault: Enabled
Concurrent Function(PCI)
D
efault: Enabled
These items define the properties and the operation of the system memory
controller. We recommend that you leave these items at the default value.
Passive Release
D
efault: Enabled
When Enabled, CPU to PCI bus accesses are allowed during passive release.
Otherwise, the arbiter only accepts another PCI master access to local
DRAM.