nForce 2 mobo crashing in dual channel.

[parimal]

My friend has following configuration-

AMD Athlon XP 2500+ (Barton)
Gigabyte GA-7N400-L1 motherboard (nForce 2 400 Ultra chipset)
Kingston ValueRAM 512MB DDR at 333MHz (PC2700) (2x256MB)
Samsung 80GB 7200rpm IDE
PowerColor 256MB DDR ATI Radeon 9550

The problem is that whenever he tries to run his RAM modules in dual channel mode, his system gets unstable....like sometimes it gets restart, games crashes etc. According to his mobo's manual his two RAM modules should be in 1st and 3rd slots OR 2nd or 3rd slot. He has tried out all possible combinations, but in dual channel environment the system is crashing. What could be the problem and how to solve this one??......What about BIOS update?? Would this solve the problem??

[magnet]

yup flash your bios......as the frequency of both rams r same.........there shdnt b ny problem.......also update your graphic card driver........i guess that may b the culprit

[pradeep_chauhan]

Is the RAM new? If yes set the bios to set the vdd and speed from the serial chip on ram module (i.e. no OC) and then set it in dimm socket 1 and 3 it will work. I hope ram fits firmly in the socket. What does POST say? Does it give the full ram size?