**Official DFI LanParty UT X48-T2R(and LT) Discussion

[sakis_the_fraud]

Thanks for the info mikeyakame!

Driving strength is set for the ICs. 6/8 usually works by default. To adjust you either increase clk drive/decrease dq drive or decrease clk drive/increase dq drive, but you need to change DLL models too when doing this.

On my DDR2 G.Skill 1100mhz 2x2gb sticks I've found the best combo for me is, in the format CK Drv/DQ Drv/Dll 1/Dll 2

3/8/5/5 or 4/7/6/6.

i see that in your working combos the sum of CK Drv and DQ Drv is the same (3+8=11, 4+7=11). do i have to try only numbers that make 11 or just try everything?

Dll 1 and Dll 2 have to be the same?

how do i test if my selection (eg 5/8/5/5) is the best?

MCH Vref are set with respect to the difference default.

Vref1=00h, Vref2=00h, Vref3=80h.

The represent voltage reference points at voltage crossing. You adjust them to the same ratio they are set. ie, Vref1=05h, Vref2=05h, Vref3=85h.

I got it! whatever you add to Vref1 you add it and to the others. Also the numbers are in hexadecimal format.

Are there any settings that "usually work"? I was told to use 23-23-A3.

Rtt = 1/2 ROn
Rtt = 2 * ROn

I am not expert at math but i think that something is wrong here ^

Do i have to change Rtt/ROn in order to be stable at 530?