What do the 2T mean in some ram timings

[Gameplaywarrior]

I was wondering what the 2T stands for in some ram timings and where I would go to ajust this setting in BIOS? I have OCZ Reaper Hpc Edition PC2-8500 DDR2 4GB 2X2GB (running at 1200MHZ)
Thanks

[CanadaRox]

1T and 2T are command rates of the ram. Where you would adjust them depends on your motherboard, but generally for DDR2 the command rate is 2T, and for RAM running at such a high frequency I would be surprised if 1T was stable.

[S_G]

It's highly doubtful that you'd be able to run a command rate of 1T at that speed. If you tried 1T, I doubt you'd be able to do more than 1000-1050 stable at a reasonable voltage. With that said, I find that 1T does give a marginal improvement in latency, but other than that, the benefit is not worth the drop in clock speed. It probably varies from chipset to chipset, but in general, I'd say 2T at 1200 would kill 1T at 1000 in sheer bandwidth.