Atlantis PCI Pentium II ISA Motherboard User’s Guide
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Section 3 Chipset Setup
Choose Chipset Setup from the AMIBIOS Setup main menu. All Chipset
Setup options are described below.
USB Function
Set this option to Enabled to enable the system BIOS USB (Universal Serial
Bus) functions. The settings are Enabled or Disabled. The Optimal and Fail-
Safe default settings are Enabled.
USB Keyboard/Mouse Legacy Support Set this option to Enabled to enable USB support for
legacy keyboards and mice. The settings are Enabled or Disabled. The
Optimal and Fail-Safe default settings are Enabled.
SDRAM Timing Latency This option specifies the latency for the Synchronous DRAM
system memory signals. The settings are Auto (AMIBIOS automatically
determines the optimal delay) or Manual. The Optimal and Fail-Safe default
settings are Auto.
RAS To CAS
This option specifies the length of the delay inserted between the RAS and
CAS signals of the DRAM system memory access cycle. The settings are 2
CLKs or 3 CLKs. The Optimal and Fail-Safe default settings are 3 CLKs.
RAS Precharge This option specifies the length of the RAS precharge part of the DRAM
system memory access cycle when EDO DRAM system memory is installed
in this computer. The settings are 2 CLKs or 3 CLKs. The Optimal and Fail-
Safe default settings are 3 CLKs.
Cont’d