11
Flash EEPROM Vpp - JP17
Clear CMOS - JP19
Power Supply Type Select
HOT-579 mainboard supports two types of Flash EEPROM: 5 volt and 12 volt. By setting up
jumper JP17, the main board can use both 5V or 12V flash EEPROM with new system BIOS
files as they come available.
JP17 Pin 2-3 Close for 12V Flash EEPROM
JP17 Pin 1-2 Close for 5V Flash EEPROM
HOT-579 mainboard supports jumper JP19 for discharging mainboard’s CMOS memory.
This jumper can clear the CMOS data stored in the sub-system chip. To clear the CMOS
data please follow listed steps:
1) Turn off the PC,
2) Remove the jumper cap from JP19 pin 1-2,
3) Insert the jumper cap to JP19 pin 2-3 for a brief while,
4) Remove the jumper cap from JP19 pin 2-3,
5) Reinsert the jumper cap to JP19 pin 1-2,
6) Turn on the PC.
HOT-579 provide both AT and ATX power connector on-board, AT and ATX power supply
are available on HOT-579. Jumper JP31 is used to set what type of power supply is pluged to
the main board.
Power
Supply Type
Outline
JP31
12-Pin
AT Type
20-Pin
ATX Type
Table 2-5
