Memory issues need some help

Some updates here.

After testing all memory stick on an individual basis, they all passed Mem Test. What else, each time I would reboot my PC, the loading screen would stop and this message would be displayed : Over clockfailed, press F1 to enter bios setting or F2 to load default values. I would than go into bios change nothing and save and exit then into Mem Test. 2 Sticks of memory will produce an error almost instantaneously.

I tried other sticks of memory, basic Kingston value Ram DDR2-800 5-5-5-18 at 1.8V. Once installed, all the Bios settings were left to auto but the speed which is set a 800. This seems to work great, no message about failing over clock and no errors in Mem Test with 2 sticks of memory.

Another thing I have noticed, I tried to adjust the RAM timing manually 5-5-5-18 this cause booting message of an over clock failure. In auto mode the system set the timing at 5-5-5-15 which is pretty darn near the manufacturer specs. but it seems my system doesn't like it. I am currently testing my G. Skill into another system and they seem to run fine.....

Honestly this is a bit perplexing. I am still not sure if my MB has some kind of trouble or it's just very memory picky .........