Specifications

Chapter 3: BIOS configuration
33
Cache Memory sub-menu
The options in this sub-menu control the cacheability of certain memory regions
and also the settings of the Level 2 (L2) cache.
Figure 3-11. Cache Memory sub-menu
Main
F1 Help ↑↓ Select Item -/+ Change Values F9 Setup Defaults
ESC Exit ←→ Select Menu Enter Select Sub-Menu F10 Save and Exit
PhoenixBIOS Setup Utility
Advanced
<Tab>, <Shift-Tab>, or <Enter>
selects field.
Item Specific Help
Memory Cache: [Enabled]
Cache System BIOS Area: [Write Protect]
Cache Video BIOS Area: [Write Protect]
Cache Base 0–512k: [Write Back]
Cache Base 512k–640k: [Write Back]
Cache Extended Memory Area [Write Back]
Cache A000 – AFFF: [Disabled]
Cache B000 – BFFF: [Disabled]
Cache C800 – CBFF: [Disabled]
Cache CC00 – CFFF: [Disabled]
Cache D000 – D3FF: [Disabled]
Cache D400 – DFFF: [Disabled]
Cache D800 – DBFF: [Disabled]
Cache DC00 – DFFF: [Disabled]
Cache E000 – E3FF: [Write Protect]
Memory Cache
Field Description
Memory Cache Determines whether to use L1 and L2 memory caching.
You can select one of these:
• Enable (default): L1 and L2 memory caching occurs.
• Disable: L1 and L2 memory caching does not occur.
Cache System BIOS Area Determines whether the System BIOS is cached in DRAM.
You can select one of these:
• Write Protect (default): caches the System BIOS in the
F0000h through FFFFFh DRAM area
• uncached: Does not cache the system BIOS.
Cache Video BIOS Area Determines whether the VGA BIOS is cached in a region.
You can select one of these:
• Write Protect (default): caches the VGA BIOS in the
C0000h through C7FFFh region.
• uncached: Does not cache the VGA BIOS.