i have an athlon 2800+, gigabyte 7n400 pro, and two sticks of corsair xms 512mb pc2700. and for some reason, i can't get the sticks to run in dual channel. when i put it in dual channel, it goes through bios fine, and it locates all the memory, but once i log into windows, the computer restarts itself. i even tried using the "fail-safe" mode in bios, and it still restarted. its good quality memory and they are of the same brand and model, so i was thinking its the motherboard. ne help would be appreciated. oh, i noticed that the memory sticks are of two different versions, 1.4 and 1.7 and the 1.4 stick has written on the xms sticker thats its a 256 mb , while the part number is exactly the same as the other and windows and bios says that i got the full one gig of mem.