Q: Does DigiDice support DDR266, DDR333, and DDR400 in single and dual channels?
A:

ABIT DigiDice does support dual channel DDR 266/333/400 (shows as the table below). 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 Memoery Support
400MHz FSB
100MHz
 DDR266 (133MHz)
533MHz FSB
133MHz
 DDR266 (133MHz)

DDR333 (166MHz)
800MHz FSB
200MHz
 DDR266 (133MHz)

DDR320 (160MHz)

DDR400 (200MHz)