Acer Predator g3

Solution


Are you trying to replace the motherboard with a similar unit keeping the same components?
Acer uses standard with 24-pin ATX power and proprietary motherboards with a 12-pin and 4-pin power connectors.
Which motherboard model do you have?


Are you trying to replace the motherboard with a similar unit keeping the same components?
Acer uses standard with 24-pin ATX power and proprietary motherboards with a 12-pin and 4-pin power connectors.
Which motherboard model do you have?
 
Solution

If your motherboard looks like this one then your case can accommodate a Micro ATX (mATX) motherboard.
A mATX motherboard like the ASRock H270M Pro4 will fit.
Now you will have to check the front panel connections from your Acer case.
You should post a image to see how they look like.