Q: Does ABIT IC7 series mainboard support DDR266, DDR333, and DDR400 in single and dual channels? ( IC7-G / IC7 )
A: ABIT IC7 series mainboards do support dual channel DDR 266/333/400. With only one DDR memory module installed (single channel mode) the board still works fine but we highly recommend users install memory modules in pairs to feature the best performance by dual channel mode.

Pentium4 Front Side Bus Base Frequency DDR Memory Support
400MHz FSB 100MHz DDR266 (133MHz)
533MHz FSB 133MHz DDR266 (133MHz)
DDR333 (166MHz)
800MHz FSB 200MHz DDR266 (133MHz)
DDR320 (160MHz)
DDR400 (200MHz)