ATX Reset Adapter Description

This product is an accessory item for use with the PC Watchdog timers. It is used for adding a reset header (2 Pin) to PCs that do not have a reset header on the motherboard.

The ATX-20 & ATX-24 Reset Adapters for industry standard PCs consists of a 6" ATX power cable extension with a small circuit board attached that is enclosed in protective insulated plastic cover. A small portion of this board is exposed to allow access to a 2 pin header which connects to the reset header of our PC Watchdog timer products. It allows a PC to be reset by momentarily removing the Power Good signal from the power supply to the motherboard.

New Adaptor for Proprietary Dell PCs.

Effective June of 2011 we have released a version for Dell Optiplex and other models that use a non-industry standard mini-ATX connector. The Dell version is a 3.25" long assembly that also has a small circuit board with a 2 pin reset header.

The adapters can also be used by themselves to reset a PC if your cabinet has a reset switch, but the motherboard does not have a reset header.

ATX-24 Pinouts

Pin	Signal	Wire Color	Pin	Signal	Wire Color
1	+3.3V	Orange	13	+3.3VDC (+3.3V Sense)	Orange (Brown)
2	+3.3V	Orange	14	-12V	Blue
3	COM (GND)	Black	15	COM (GND)	Black
4	+5.0V	Red	16	Power On	Green
5	COM (GND)	Black	17	Com (GND)	Black
6	+5.0V	Red	18	COM (GND)	Black
7	COM (GND)	Black	19	COM(GND)	Black
8	Power Good	Gray	20	-5V1	White
9	+5V Standby	Purple	21	+5V	Red
10	+12V	Yellow	22	+5V	Red
11	+12V	Yellow	23	+5V	Red
12	+3.3V	Orange	24	COM (GND)	Black

ATX-20 Pinouts

Pin	Signal	Wire Color	Pin	Signal	Wire Color
1	+3.3V	Orange	11	+3.3VDC (+3.3V Sense)	Orange (Brown)
2	+3.3V	Orange	12	-12V	Blue
3	COM (GND)	Black	13	COM (GND)	Black
4	+5.0V	Red	14	Power On	Green
5	COM (GND)	Black	15	Com (GND)	Black
6	+5.0V	Red	16	COM (GND)	Black
7	COM (GND)	Black	17	COM(GND)	Black
8	Power Good	Gray	18	-5V1	White
9	+5V Standby	Purple	19	+5V	Red
10	+12V	Yellow	20	+5V	Red

Note 1: -5V is not included on newer ATX power supplies.