What's best timings for my RAM Corsair Twin2x2048-6400c4DHX?

[aldi]

I want to ask anybody who read my message now, can someone give me the best timings for my RAM (Corsair Twin2x2048-6400c4DHX)? I don't know what's wrong with my RAM, when i change the timings into 5-5-5-5-20, it cannot works..Please help me..
I use mobo Abit IP35 Pro, ram as known above, processor Intel Dual Core e2160 1,8GHz (now running at 3,24 GHz), psu FSP 500W BlueStormII. graphic card GeCube hd2600XT ddr3 256 mb..
Thx 4 your reply..

 

[goodie]

thats cause these run at 4-4-4-12 with 2.1v

 

[benzene]

^^ exactly what Goodie says

 

[maverick7]

omg lol facepalm