Chipset features setup, Chapter 3 – Tyan Computer S1854 User Manual

Page 46

Advertising
background image

http://www.tyan.com

46

Chapter 3

BIOS Configuration

Chipset Features Setup

This section describes features of the VIA Appollo Pro Plus 133A chipset.

Advanced Options

The parameters in this screen are for system designers, service personnel, and

technically competent users only. Do not reset these values unless you

understand the consequences of your changes. Note: This chapter describes

all fields offered by Award Software in this screen. Your system board designer

may omit or modify some fields.

Bank 0/1 DRAM Timing

: SDRAM 10ns

Auto Detect DIMM/PCI Clk : Enabled

Bank 2/3 DRAM Timing

: SDRAM 10ns

CPU Clock/Spread Spectrum: Default

Bank 4/5 DRAM Timing

: SDRAM 10ns

SDRAM Cycle Length

: 3

DRAM Clock

: HCLK -33M

Memory Hole

: Disabled

P2C/C2P Concurrency

: Enabled

Fast R-W Turnaround

: Disabled

CPU IOQ Size

: 1 Level

System BIOS Cacheable

: Enabled

Video RAM Cacheable

: Enabled

AGP Aperture Size

: 64M

AGP Driving Control

: Manual

AGP Driving Value

: EC

AGP-4x Mode

: Enabled

OnChip USB

: Enabled

USB Keyboard Support

: Disabled

Bank 0/1, 2/3, 4/5 DRAM Timing

The system board designer must select the proper value for these fields,

according to the specifications of the installed DRAM chips. Turbo mode

reduces CAS access time by 1 clock tick.

SDRAM Cycle Length

This field sets the CAS latency timing.

DRAM Clock

Allows you to set the memory clock speed to either 66MHz or equal to the

CPU clock speed, depending on your memory speed.

ROM PCI/ISA BIOS (TYAN1854)

CHIPSET FEATURES SETUP

AWARD SOFTWARE, INC.

ESC :Quit

↑↓ →←

: Select Item

F1 : Help PU/PD/+/- : Modify

F5 : Old Values (Shift)F2 : Color

F6 : Load BIOS Defaults

F7 : Load Setup Defaults

Advertising