Which of the following statements is correct when comparing DDR3 memory to DDR2 memory?
a. DDR3 has the same pinouts as DDR2.
b. DDR3 and DDR2 both use 240-pin connectors.
c. DDR3 uses higher voltages than DDR2.
d. All these options are correct.
B. DDR3 and DDR2 both use 240-pin connectors is the only correct answer. Although DDR3 and DDR2 both use 240-pin connectors, the connectors use different pinouts and are keyed differently to avoid installing DDR3 in a DDR2 slot or vice versa. DDR3 uses lower voltage than DDR2 . DDR3 memory uses 1.5V DC power, compared to 1.8V DC for DDR2.
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