Abit SG-71 User Manual page 61

Introducing the BIOS
4-11
Advanced DRAM Control 1:
This item can let you set several items concerning the DRAM parameters. If you do not understand what
each item does, please keep the default settings. Wrong settings may cause system unstablity, data loss or
even prevent boot up!
Figure 4-4B. DRAM Clock/Drive Control Upper Screen
System Performance:
Five options are available: Safe Mode Normal Mode Fast Mode Turbo Mode Ultra Mode.
The default setting is Normal Mode. This item can allow you to set system performance. Set it to Safe
Mode for best system compatibility or set it to Ultra Mode for system performance.
CAS Latency Setting:
Three options are available: 2T 2.5T 3T. The default setting is 2.5T. You can select DDR SDRAM
CAS (Column Address Strobe) latency time according your DDR SDRAM specification.
DRAM Addr/Cmd Rate:
Three options are available: Auto 1T 2T. The default setting is Auto Mode. This item can allow you
to set DRAM address and command transaction rate. Set it to 1T for best compatibility or to 2T for best
performance.
Back to Advanced Chipset Features Setup Menu Here:
Prefetch Caching:
Two options are available: Disabled Enabled. The default setting is Disabled. This item controls the
prefetch caching for PCI slave control.
User's Manual