ASUS P2B 用户手册

IV.  BIOS SETUP

 Chipset Features

Chipset Features Setup

The “Chipset Features Setup” option controls the configuration of the board’s chipset.
Control keys for this screen are the same as for the previous screen.

NOTE: SETUP Defaults are noted in parenthesis next to each function heading.

Details of Chipset Features Setup

SDRAM Configuration (By SPD)
This sets the optimal timings for items 2-5. Leave on default setting.

SDRAM CAS Latency
This controls the latency between SDRAM read command and the time that the data
actually becomes available. Leave on default setting.

SDRAM RAS to CAS Delay
This controls the latency between SDRAM active command and the read/write com-
mand. Leave on default setting.

SDRAM RAS Precharge Time
This controls the idle clocks after issuing a precharge command to SDRAM. Leave
on default setting.

DRAM Idle Timer
This controls the idle clocks before closing an opened SDRAM page. Leave on de-
fault setting.

SDRAM MA Wait State (Normal)
This controls the leadoff clocks for CPU read cycles. Leave on default setting.

Snoop Ahead (Enabled)
Enabled will allow PCI streaming. Leave on default setting.

Host Bus Fast Data Ready (Disabled)
Leave on default setting.

16-bit I/O Recovery Time (1 BUSCLK) / 8-bit I/O Recovery Time (1 BUSCLK)
Timing for 16-bit and 8-bit ISA cards, respectively. Leave on default setting.