PC ATX Reset Adapter Dell Mini ATX Reset Adapter PC ATX Reset Adapter Text Image

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)
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)
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.

Pricing & Purchase Link

This item can be purchased at the Berkshire Products online store.
      Buy ATX Reset Adapters
(Clicking this link will take you to a new site for the store.)

Part# Description Price
1100-20 ATX-20 Reset Adaptor $15.45
1100-24 ATX-24 Reset Adaptor $17.95
1100-24DM Dell Mini ATX-24 Reset Adaptor $22.95

Larger Images

Industry Standard ATX 24 Reset Adaptor proprietary Dell Mini ATX Reset Adaptor
Industry Standard ATX-24 Adaptor Dell Mini-ATX-24
Proprietary for Dell only