Q: My 775Dual-880Pro motherboard has DDR and DDRII memory slots. Can I use DDR and DDRII memories with this motherboard at the same time?(9/20/2005) A: Due to DDR and DDRII memories are totally different in specification, DDR works with 2.5Voltage and DDRII works with 1.8Voltage. Please don't use DDR and DDRII memories with 775Dual-880Pro motherboard at the same time.