4.0 Jumpers

There are a number of jumpers on the AmigaPCI mainboard that control how it behaves. Incorrect jumper settings can lead to system instability or failure to boot.

4.1 Floppy Disk Jumpers

Description	Jumper	Setting	Result
DF1 Presence	J200	Short	Second internal floppy drive present.
		Open	Second internal floppy drive not present.
Floppy Disk Change Signal	J201	1-2 Amiga	Amiga type floppy drive(s) installed.
		2-3 PC	PC type floppy drive(s) installed.
Floppy Ready Signal	J202	1-2 Amiga	Amiga type floppy drive(s) installed.
		2-3 PC	PC type floppy drive(s) installed.

Note

Jumpers J201 and J202 must be set to PC Type or Amiga Type. It is not possible to mix the drive types.

4.2 Agnus Jumpers

Description	Jumper	Setting	Result
Agnus Part	J204	Short	Agnus 8372A Installed.
		Open	Agnus 8375 Installed.
Agnus Video Mode	J205	Short	PAL 8375 Installed.
		Open	NTSC 8375 or any 8372A Installed.
Agnus Vbb	J206	1-2 Vbb	Agnus 8375 Vbb Only.
		2-3 Non-Vbb	Agnus 8372A and 8375 non-Vbb.
Agnus Data/GND	J210	Short	Agnus 8372A Installed.
		Open	Agnus 8375 Installed.

Note

Agnus 8372A is capable of either PAL or NTSC operation.
Agnus 8375 are PAL or NTSC specific by part number.

4.3 TICK Jumpers

Description	Jumper	Setting	Result
TICK Frequency	J207	1-2 50Hz	PAL
		2-3 60Hz	NTSC
Timebase Source	J208	1-2 VSYNC	Timebase driven by Agnus VSYNC.
		2-3 TICK	Timebase driven by TICK.

4.4 STM Microcontroller Jumpers

Description	Jumper	Setting	Result
STM Boot Mode	J209	1-2 Program	Program microcontroller via USB port.
		2-3 Run	Factory default.
Clock Calibrate	J210	Short	Factory Default.
		Open	Pin 2 used to calibrate clock crystal frequency.

4.5 Video Jumpers

Description	Jumper	Setting	Result
Sync Source	J303	1-2 HSYNC	Supplies HSYNC to pin 13 of the HD15 video port.
		2-3 CSYNC	Supplies CSYNC to pin 13 of the HD15 video port.

4.6 ATA Jumpers

Description	Jumper	Setting	Result
ATA Autoboot	J900	Short	ATA autoboot disabled.
		Open	ATA autoboot enabled.

Description	Primary	Secondary	J901	J902	J903
PIO Modes	PIO4	PIO4	Open	Open	Open
	PIO4	PIO2	Open	Open	Short
	PIO2	PIO4	Open	Short	Open
	PIO2	PIO2	Open	Short	Short
	Reserved	Reserved	Short	Open	Open
	Reserved	Reserved	Short	Open	Short
	Reserved	Reserved	Short	Short	Open
	Reserved	Reserved	Short	Short	Short

4.7 ROM Wait State Jumpers

Description	Jumper	Pin 1-2	Pin 3-4	Result
ROM Wait States	J212	Open	Open	250ns
		Short	Open	200ns
		Open	Short	150ns
		Short	Short	100ns