if you dun wanna spend any cash, then use divider. A64 performance and stability are relatively not affected by putting a divider (forgot where's the source). u are using amd proc rite? ok... first determine if you really need 2gb of ram. if you dun need, then just go tccd 512x2. alternative will be bh-5 512x2 coz it can do really tight timings up to 1.5-2-2-5.

if you need 2gb ram and you dun wanna change board, then personally i prefer uccc. but they have a problem of higher latency. the lower the latency, the more expensive

lastly if you are willing to change board, u can get a dfi crossfire or something that can run 512x4 at 1T. put in tccd or bh-5 there.

and bear in mind, some nice and cheap KVR can oc really high as stated earlier.

the HT no problem one, u put 1x or 5x also no difference in performance. not worth it running single channel woh... quite significant performance difference.

last time my mobo gave problem with 7/10 divider. but now dunno why i put 7/10 no problem liao.

if your ram can do 270 i suggest u keep it coz even my ocz performance ram is barely stable at 270 3-4-3-8.

ya... google bout the HT and see.. read it last time. try dfi-street. and i personally tried this out before. i put at stock speed, HT x5, and HT x2, ran benchmark of sandra and superPI, all came out identical.

haha ya i think i misunderstood u