
56
VD133 Pro Series
Chapter 5 BIOS Setup
5.5.1 Bank 0/1 2/3 4/5 DRAM Timing
This item allows you to select the value in this field, depending on whether the board
has paged DRAMs or EDO (extended data output) DRAMs.
Some engineering knowledge is needed prior to handling Auto Configuration.
Options
SDRAM 10ns (*) / SDRAM 8ns / Normal / Medium / Fast / Turbo
5.5.2 SDRAM Cycle Length
When synchronous DRAM is installed, the number of clock cycles of CAS latency
depends on the DRAM timing. Do not reset this field from the default value specified
by the system designer.
Options
Description
2
2 system clocks
3 (*)
3 system clocks
5.5.3 DRAM Clock
This field allows you to select the DRAM operating frequency to get better performance.
Options
Description
Host Clk (*)
DRAM clock is the same speed as Front Side Bus
(66/100/133 MHz)
HCLK –33 MHz
DRAM clock is set 33 MHz
less
than the Front Side Bus
HCLK +33 MHz
DRAM clock is set 33 MHz
greater
than the Front Side Bus
5.5.4 DRAM Parity / ECC Check
When enabled, the BIOS will use ECC (Error Checking and Correcting) protocol to
increase integrity of system data. All memory modules used in the system need to
support ECC in order for this function to work properly.
Options
Enabled
Disabled (*)
5.5.5 Memory Hole
In order to improve performance, certain space in memory is reserved for ISA cards.
This memory must be mapped into the memory space below 16MB.
Note
: This field is for experienced users only.
Options
15M-16M
Disabled (*)
Summary of Contents for VD133
Page 3: ...3 VD133ProSeries Chapter 1 Quick Installation Chapter 1 Quick Installation 1 1 Layout ...
Page 13: ...13 VD133ProSeries Chapter 1 Quick Installation 1 4 10 J48 SMBUS ...
Page 15: ...15 VD133ProSeries Chapter 1 Quick Installation 1 5 FormFactor ...
Page 16: ...16 VD133ProSeries Chapter 2 Overview ...
Page 20: ...20 VD133ProSeries Chapter 3 Features Chapter 3 Features 3 1 Motherboard Components Placement ...
Page 22: ...22 VD133ProSeries Chapter 3 Features 3 2 Block Diagram ...
Page 27: ...27 VD133ProSeries Chapter 4 Hardware Setup 4 2 2 JP9 Vcore CPU core voltage select jumper ...
Page 43: ...43 VD133ProSeries Chapter 4 Hardware Setup 4 7 10 USB 1 ...