http://www.tyan.com
2-6
Chapter 2
Board Installation
1
- CPU Speed Settings (Jumpers JP11, JP12, JP13, JP14)
In order to adjust the speed of the CPU, change the jumper settings according
to the chart below. The clock speed settings control the clock multiplier (CPU
Core / Bus Ratio). Tyan does not recommend operating CPUs, memory, or PCI
Bus at higher than rated speed. Tyan takes no responsibility for any problems
related to overclocking any bus or component on the system board. See the
motherboard diagram below for jumper locations
CPU Settings for 100MHz Bus
2
- CMOS Clear (Jumper JP3)
Hardware CMOS & Password Reset
If you have been locked out of your system because you forgot your
password or set the CMOS incorrectly, follow the instructions below.
1. Power off the system and unplug your power supply.
2. Set jumper JP3 to pins 2 and 3 (see next page for location of JP3).
3. Wait for 2 seconds, then return jumper JP3 to pins 1 and 2.
4. Power on the system again (plug-in your power supply first).
By following this procedure, you will erase your password and reset
the SCSI IRQ Settings CMOS to the BIOS defaults.
Clock Speed
Multiplier
JP11
JP12
JP13
JP14
350M Hz
x 3.5
ON
OFF
OFF
ON
400M Hz
x 4.0
OFF
ON
ON
ON
450M Hz
x 4.5
OFF
ON
OFF
ON
500M Hz
x 5.0
OFF
OFF
ON
ON
Default CMOS Clear
JP3
1-2
2-3
JP11
JP12
JP13
JP14
JP20
JP3
Содержание THUNDER X
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