PIATX

Raspberry Pi to ATX Computer Case Cable Connections Card

• Connect up to the cables inside an ATX case
• Cables documented in Intel Front Panel I/O Connectivity Design Guide
• On Board LED
• 26 pin connector to Raspberry Pi
  • Works with all versions of the P1
• Power the Pi from the USB connector
• The ATX case power button can be used with a script to initiate shutdown when the case power button is pressed
• The ATX case reset button can be used with a script to initiate reboot when the button is pressed

Layout

Connectors

LED Switches Cable

Chassis cables

Motherboard Header Pinout

Chassis Schematic

Connector Top View

Pi Connector

]]

Desc	Pin	Pin	Desc
+3.3V (N/A)	1	2	+5V
NA	3	4	+5V
NA	5	6	GND
NA	7	8	NA
GND	9	10	NA
PWR_LED+
GPIO_17

11	12	RESET_N
GPIO_18

HARD DRIVE
GPIO_21

13	14	GND
15	16	POWER SWITCH
GPIO_23

NA	17	18	PWR_LED-
GPIO_24

NA	19	20	GND
NA	21	22	ON-BOARD LED
GPIO_25

NA	23	24	NA
GND	25	26	NA

J2 Connector

Desc	Pin		Pin	Desc
HDD LED Pos
120 Ohm Pullup to +3.3V

1		2	PWR LED 1
GPIO_17

HDD Active LED Neg
GPIO_27

3		4	PWR LED 2
GPIO_24

Reset Switch Return
GND

5		6	Power Switch
Pulled up to +3.3V GPIO_23

Reset Switch
Pulled up to +3.3V GPIO_18

7		8	Power Switch return
GND

Key	9		10	Key

J3 USB Micro Connector

Rev X1 rework

• Cut etch J2-3 to J2-4
• Add wire J2-3 to J1-13 (HDACT)
• Remove R6
• Install R3 only in pad next to R3 silkscreen.
• Attach wire from other side of R3 to adjacent via

Rev X2 PL

Qty	Value	RefDes
3	120	R1,R5,R6
2	2.2K	R2,R3
1	DNP	R4
1	LED	D1
1	FUSE	F1
1	CONN_01X02	J4
1	CONN_02X05	J2
1	RASPIO	J1
1	USB-MICRO-B	J3

Rev X1 PL/Assembly

PIATX Assembly Sheet Rev X1