The GA-Z68A-D3-B3 is one of the products that has the quality, but is a little lacking on the features and Support for ON/OFF Charge. Support. Gigabyte GA-Z68A-D3-B3 - - motherboard - ATX - LGA Socket - Z68 Intel Smart Response Technology, On/Off Charge, Q-Flash, Smart 6, Voltage. GA-Z68A-D3H-B3 Motherboard Block Diagram. .. (Go to GIGABYTE's website for the latest CPU support list.) . Support for ON/OFF Charge.