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Chipset Setup
The WinBIOS Setup options described in this section are selected by choosing the appropriate high-level icon from
the Chipset Setup screen. Chipset Setup is selected from the Setup section on the WinBIOS Setup main menu (see
page 59). All displayed icons are described in this section, although the screen display is often all you need to
understand how to set the option.
Base Memory Size
This option sets the size of the base system memory. The settings are 512 KB or 640 KB.
DRAM Performance Mode
This option sets the DRAM system memory performance mode. The settings are Standard or Enhanced. The Standard
setting will have one extra DRAM lead-off wait state.
ISA/DMA Master Performance
This option enables the ISA/DMA master performance mode feature. The settings are Standard or Enhanced. If
Enhanced is selected, the ISA and DMA line buffers are enabled.
ISA Performance Mode
This option enables the ISA performance mode feature. The settings are Standard or Enhanced. If Enhanced is
selected, the ISA to PCI posted write buffer is enabled.
ISA VGA Frame Buffer Size
This option must be set to Enabled if the VGA card installed in the system requires a frame buffer. This option sets the
size of the VGA frame buffer. The settings are Disabled, 1 MB, 2 MB, or 4 MB.
Excalibur PCI Pentium ISA Motherboard User's Guide
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