TYAN S5221 User Manual page 35

3.2.4 - Memory Cache
This setting allows you to tweak the various cache settings for optimal
performance of your system. Press Enter to display the various cache settings.
Phoenix cME First BIOS Pro Setup Utility
Main
Memory Cache
Cache System BIOS area:
Cache Video BIOS area:
Cache Base 0-512K:
Cache Base 512K-640K:
Cache Extended Memory
Cache A000 – AFFF:
Cache B000 – BFFF:
Cache C800 – CBFF:
Cache CC00 – CFFF:
Cache D000 – D3FF:
Cache D400 – D7FF:
Cache D800 – DBFF:
Cache DC00 – DFFF:
Cache E000 – E3FF:
Cache E400 – E7FF:
F1 Help Select Item
↑↓
Esc Exit Select Menu
← →
Cache System BIOS Area
This feature is only available when the system BIOS is shadowed. It
enables or disables the caching of the system BIOS ROM at F0000h-
FFFFFh via the L2 cache. This greatly speeds up accesses to the
system BIOS. However, this does not necessarily make the system
perform better because the OS does not need to access the system
BIOS often.
As such, it would be a waste of L2 cache bandwidth to cache the
system BIOS instead of data that are more critical to the system's
performance. In addition, if any program writes into this memory area, it
will result in a system crash. So, it is recommended that you write
protect this area for optimal system performance.
Uncached / Write Protect
Cache Video BIOS Area
This feature is only valid when the video BIOS is shadowed. It enables
or disables the caching of the video BIOS ROM at C0000h-C7FFFh via
the L2 cache. This greatly speeds up accesses to the video BIOS.
However, this does not necessarily make the system perform better
[Write Protect]
[Write Protect]
[Write Back]
[Write Back]
[Write Back]
[Disabled]
[Write Protect]
[Write Protect]
[Disabled]
[Disabled]
[Disabled]
[Disabled]
[Disabled]
[Write Protect]
[Write Protect]
-/+ Change Values
Enter Select Sub-Menu
35
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Item Specific Help
Controls caching of
system BIOS area.
F9 Setup Defaults
F10 Save and Exit