Using iMac 27" PSU for other projects

I've found the pinout for a spare internal PSU for a broken iMac. I'm confused about what I'm reading. Please fill me in on what some of these designations might mean. See below\

Pin 1 : Inverter- Pin 2: GND Pin 3: PS_On Pin 4: GND Pin 5: PP12V_G3H_ACDC Pin 6: GND Pin 7: SMB_ACDC_SCL_RC Pin 8: GND Pin 9: Inverter- Pin10: Inverter+ Pin11: Inverter+ Pin12: PP12V_S0_PS Pin13: PP12V_S0_PS Pin14: PP12V_S0_PS Pin15: SMB_ACDC_SDA_RC Pin16:GND

by rightontrack
December 28, 2018
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1 Answer

Answer by mikerogerswsm

Pin 1 : Inverter- .......ignore

Pin 2: GND

Pin 3: PS_On .......ignore or use via approx 500 ohms for ON LED

Pin 4: GND

Pin 5: PP12V_G3H_ACDC .......ignore

Pin 6: GND

Pin 7: SMB_ACDC_SCL_.......ignore

RC Pin 8: GND

Pin 9: Inverter-.......ignore

Pin10: Inverter+ .......ignore

Pin11: Inverter+ .......ignore

Pin12: PP12V_S0_PS

Pin13: PP12V_S0_PS

Pin14: PP12V_S0_PS

Pin15: SMB_ACDC_SDA_RC .......ignore

Pin16:GND

Ignore the computer specific signals, usually referenced by destination, and use the remaining GND and +12V as your power.

Manual unavailable so this is best guess, hope it works. mike

+1 vote
by mikerogerswsm
December 29, 2018
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