Nvidia 400 - Manual (Page 39)

BIOS
Page 4-7
AGP Aperture Size (MB)
This item defines the size of the aperture if you use an AGP graphics adapter. It
refers to a section of the PCI memory address range used for graphics memory.
Options: 32, 64, 128, 256, 512 MB.
AGP Frequency
This item allows you to select the AGP frequency.
Options: Auto, 90MHz, 93MHz, 95MHz, 97MHz, 100MHz, 50MHz ~87MHz in 1MHz
increments.
AGP 8X Support
Enables AGP 8X supports.
Options: Disabled, Enabled.
AGP Fast Write Capability
This item allows you to use Fast Write transfer for CPU write to graphics adapter’s
memory.
Options: Disabled, Enabled.
System BIOS Cacheable
This item allows the system BIOS to be cached in memory for faster execution.
Options: Disabled, Enabled.
Video RAM Cacheable
This option allows the CPU to cache read/writes of the video RAM.
Options: Disabled, Enabled.