7
Hardware Configuration
2
2
This chapter is designed for explaining how to configure the HOT-591's hardware. After you install the
main board, you can set jumpers, install memory on the main board, and make case connectors. Refer to
this chapter whenever you upgrades or reconfigure your system.
Jumper Setting
This section describe the necessary proce-
dures and proper jumper settings to configure
the HOT-591 main board.
Jumper pin headers and DIP Switch show on
right side are used to configure system clock,
CPU multiplier and CPU voltages.
System Clock -
Pin Header 1~6 of Jumper JP1
Pin header 1~6 are used to adjust System
Clock from 50MHz to 83 MHz.
CPU Multiplier -
Pin Header 7~12 of Jumper JP1
Pin header 7~12 are used to adjust CPU core
multiplier from 1.5X to 5.5X.
CPU Voltages Auto/Manual
Figure 2-1 : SW1 & SW2 location
Insert a jumper pack on SW 1
Row B-C to set CPU voltage
auto-detecting
Remove jumper pack from SW1
and insert mini on pin 1, 3, 4 or
Row A-B to set voltage on 3.3V
Jumper- J19
HOT-591 automatically detects and adjusts the voltage to the proper voltage.
Jumper block J19 is used to set Automatically or Manually adjust onboard voltages output
from Switching type regulators to CPU by inserting or removing mini jumper from pin
headers. (please also refer to page 13)
Those hardware settings are made through the use of jumper caps to connect jumper pins on
the main board.
The following examples show the conventions used in this chapter.
Insert mini jumpers on pin 1-2, 3-4
of JP1
Insert mini jumpers on pin 1-2, 7-8
and 9-10 of JP1
