4-8
BIOS Setup Information
Table 4-3. Advanced Chipset Defaults
BIOS Setup Items
Optimal
Default
Failsafe
Default
Other Options
USB Function
Disabled
Disabled
Enabled
USB Keyboard
Legacy Support
Enabled
Enabled
Disabled
DRAM Page Closing
Policy
Closed
Closed
Open
Memory Hole
Disabled
Disabled
15MB-15MB
DRAM Tras/Trc Cycle
Time
5/7
5/7
6/8
Address Setup Time
(SCLKs)
1s
1
0
CAS# Latency
3 SCLKs
3 SCLKs
2 SCLKs
SDRAM RAS# to CAS#
delay
2 SCLKs
2 SCLKs
3 SCLKs
SDRAM RAS# Precharge
2 SCLKs
2 SCLKs
3 SCLKs
Graphics Mode Select
UMA 1MB
UMA 1MB
UMA 512MB
Display Cache
Window Size
64MB
64MB
32MB
ICH Delayed Transaction
Disabled
Disabled
Enabled
Local Memory Frequency
100 Mhz
100 Mhz
133 Mhz