definitely, 46*C is nothing. so long as it doesnt go above 65*C id say your safe. Set ur bus speed to 400mhz and ur RAM at a 1:1 ratio with it. ( should end up at 800mhz ) then ur RAM should be stable and you should be able to get some low latencies if its meant to run at 1600mhz, although i doubt that unless youve got DDR3. next time be clearer. the actual speed of the RAM is only important for games. Higher speed equals more throughput. Lower latencies equal faster launching of apps because they cycle through faster.