Here:

1. http://forums.2cpu.com/showthread.p...20&pagenumber=1

2. There are 32/33, 32/66, 64/33 and 64/66 slots exist both for 5V & 3.3V.

Those of Tyan are 64/32 5V (fully compatible with 5V and universal cards).

Those of GigaByte are 64/66 3.3V (fully compatible with 3.3V and universal cards).