There are a few threads w/ stuff about Tref and how it influences our OC. (AgentJCDenton in the Gskill BH-5 thread and the Tref thread come to mind). I have found the discussions useful.

However the frustration of not finding the 'ideal' TREF for many settings has led me to request this addition to the various biosi out there (Future DFI and ATI biosi especially )

1. First request
Replace the current tref selection w/ the following entries: 1.95 Auto, 3.9 Auto, 7.8 Auto, 15.6 Auto. These would calculate tref = FSB (integer) * the auto value and use the Truncated value (Accurate to 1 cycle) for TREF. Examples: Auto 7.8 x 275 = 2145, use that. Auto 3.9 x 311 (x 9 to get 2800 MHZ CPU) = 1212(.9 - toss that).

2. Second request
Allow US do the calculations and input our OWN value (saves bios programming, however, allows for GIGO tref values )

3. Third request - teh IDEAL
Do both 1 & 2 to so that we get a better tref for starters (1) and if the calc is slightly off for our particular piece of mem we can tweak it on our own (2)

BIOSI could have tables for the trefs for above refresh rates from 150-350 FSB and let us handle anything outside of that on our own