25 24BAppendix B: BIOS Operation
Kontron User's Guide
coolMonster/PM
66
25.4.5
157B
Memory Cache Submenu
Feature
Option
Description
Memory Cache
Disabled
Enabled
Enables or Disables L2 cache.
Cache System BIOS area
Uncached
Write Protected
Controls caching of System BIOS area.
Cache Video BIOS area
Uncached
Write Protected
Controls caching of Video BIOS area.
Cache Base 0-512K
Uncached
Write Through
Write Protected
Write Back
Controls caching of base memory up to 512KB.
Cache Base 512-640K
Uncached
Write Through
Write Protected
Write Back
Controls caching of base memory above between 512
and 640KB.
Cache Extended Memory area
Uncached
Write Through
Write Protected
Write Back
Controls caching of system memory above 1MB.
D000 – D3FF
D400 – D7FF
D800 – DBFF
DC00 – DFFF
Disabled
Write Through
Write Protected
Write Back
Disabled: block is not cached.
Write-Through: Write are cached and sent to main
memory at once.
Write-Protect: Writes are ignored.
Write-Back: Writes are cached but not sent to main
memory until necessary.
Note:
In the Option column, bold shows default settings.
25.4.6
158B
I/O Device Configuration Submenu
Feature
Option
Description
Local Bus IDE adapter
Disabled
Primary
Secondary
Both
Enables onboard PCI IDE device.
Hard Disk Pre-Delay:
Disabled
3 Seconds
6 Seconds
9 Seconds
12 Seconds
15 Seconds
21 Seconds
30 Seconds
Adds a delay before the first access of a hard
disk by the BIOS. Some hard disks hang if
accessed before they have initialized them-
selves. This delay ensures the hard disk
has initialized after power up, prior to
being accessed.
Primary IDE UDMA66/100:
Disabled
Enabled
Disabled limits max.
transfer mode to UDMA33.
Enabled allows UDMA66
and above.
Secondary IDE UDMA66/100:
Disabled
Enabled
Disabled limits max.
transfer mode to UDMA33.
