ATX 20-pin pinout

ATX 24-pin pinout

CPU 4-pin pinout

4D connector pinout

GPU 6-pin pinout (6-pin PCI Express)

GPU 6+2-pin pinout (8-pin PCI Express)

SATA power pinout

ATX full diagram

Wire color references

• Red: +5V, logic rails and some device power
• Yellow: +12V, CPU/GPU and major power rails
• Orange: +3.3V, common motherboard/device rails
• Purple: +5VSB, standby rail (USB wake, standby features)
• Black: GND (0V)
• Green: PS_ON (short to GND to start PSU)
• Gray: Power Good (PWR_OK)