Intel 486MIS Quick Start Manual page 32

·
IDE Block Mode Transfer: Some latest IDE hard disks support
multiple sector (Block Mode) transfer for faster performance. Users
select "Enabled" to take advantage of this feature. If your system
hard disk supports Block Mode, BIOS message "Block Mode
Enabled" will appear during boot-up.
·
IDE Standby Mode: Default is "Disabled". If this feature is enabled,
IDE hard disk will go into Standby Mode to save power in 15 minutes
of no access.
·
DRAM Speed, DRAM Write CAS Pulse, DRAM Write Cycle:
Select these options according to table below:
CPU Clock
Speed
20MHz or 25MHz
33MHz
40MHz
50MHz
·
DRAM Hidden Refresh:
performance.
·
Cache Write Cycle, Cache Burst Read Cycle: Follow below table
to set these Cache options.
CPU Clock Speed
20MHz or 25MHz
33MHz with 64KB or
256KB Cache
33MHz with 128KB
cache
40MHz
50MHz
Page 32
DRAM DRAM
Speed Write CAS
Pulse
Fastest
Slower
Slower
Slowest
Select "Enabled" to maximize system
Cache Write
Cycle
2T
3T
3T
3T
3T
486MIS System Board User's Manual
DRAM
Write Cycle
1T 0 W/S
1T 1 W/S
2T 1 W/S
2T 1 W/S
Cache Burst
Read Cycle
1T
1T
2T
2T
2T