User Guide

Item Frequency 128KB 256KB 512KB
Coppermine 800MHz YES YES NO
Coppermine 866MHz YES YES NO
Coppermine 933MHz YES YES NO
Coppermine 1GHz YES YES NO
Coppermine 1.13GHz YES YES NO
Coppermine 1.26GHz YES YES NO
Tualatin 1GHz NO YES YES
Tualatin 1.13GHz NO YES YES
Tualatin 1.20GHz NO YES YES
Tualatin 1.26GHz NO YES YES
CPU CPU Core
Frequency
FSB Clock Ratio
Pentium III 800E 800MHz 100MHz 8x
Pentium III 850E 850MHz 100MHz 8.5x
Pentium III 533EB 533MHz 133MHz 4x
Pentium III 600EB 600MHz 133MHz 4.5x
Pentium III 667EB 667MHz 133MHz 5x
Pentium III 733EB 733MHz 133MHz 5.5
Pentium III 800EB 800MHz 133MHz 6x
Pentium III 866EB 866MHz 133MHz 6.5
Pentium III 933EB 933MHz 133MHz 7x
Pentium III 1G 1GHz 133MHz 7.5x
Pentium III 1.13G 1.13GHz 133MHz 8.5x
Pentium III 1.26G 1.26GHz 133MHz 9x
5. Setting CPU Voltage & Frequency
3. Installing Processor
4. Supported CPU Type
Note: If you do not match the CPU
socket Pin 1 and CPU cut edge
well, it may damage the CPU.
CPU socket lever
CPU Pin 1 and cut edge
1. Pull up the CPU socket lever and up to
90-degree angle.
2. Locate Pin 1 in the socket and look for a
(golden) cut edge on the CPU uppe
r
interface. Match Pin 1 and cut edge.
Then insert the CPU into the socket.
3. Press down the CPU socket lever and
finish CPU installation.
Setting CPU Core Voltage
This motherboard supports CPU VID function. The CPU core voltage will be automatically
detected and the range is from 1.05V to 1.825V. It is not necessary to set CPU Core Voltage
Setting CPU Frequency
This motherboard is CPU jumper-less design, the system can detect the CPU frequency
automatically, and no jumpers or switches are needed.
BIOS Setup > Frequency / Voltage Control > CPU Speed Setup
Core Frequency = CPU FSB Clock * CPU Ratio
Warning: We strongly
recommend you do
not overclocking your
CPU and system for
get more system
reliability.
Fortress1100 supports one Coppermine (up to 1 GHz with 256 L2 cache) or Tualatin
(up to 1.26 GHz with 512K L2 cache) processor with external FSB up to 133 MHz.