All MB Memory Slots Filled w/4 x 4 GB F3-17000CL11D-8GBSR

[Radman3d]

I'm looking for the fastest complete settings to manually input into my bios. My MB is a Biostar TZ68A+ with an i5 2500k. I have filled all the MB memory slots and now it will not pass IntelBurnTest. It passed with no problems with only 2 sticks, now with 4 sticks I have to run the speed at 1867 to get it to pass. I would like to figure out if there are timings at 2133 I can change to get it more stable.

[Tradesman]

With two sets it can be problematic, even when the sets are the same model, for these I try raising the MC (memory controller ) voltage to about 1.15 (believe it's called VCCIO or CPUVTT on your mobo), also raise the DRAM voltage + 0.05, might also take a look at the DRAM advanced timings, in particular the tRFC, will prob want that up around 171-174