Originally Posted by pij
Hi mate - thanks for these.
I have changed my ram timings - thing we both have the same ram.....??
my ram however is running at 667 mhz - 1:3... should I notch that up to 1:4? also I have them on 1.65 volts.. is that enough?
With regards to the 3.6 settings you have - what vots do you have on vdd/cpu and nb on?
Regarding the RAM, at the 1333 setting you can run considerably tighter timings like 6-5-5-15-20-1T. Since 1600 is technically considered overclocked, unless your IMC can handle it, you'll have to loosen the timings up to 7-7-7-20-27-1T or possibly even looser like 8-8-8-24-32-1T. What that means is that although the throughput is higher, the actual work being performed will be almost identical. You can verify this using Everest, the memory speed will be pretty much identical.
As for the voltage settings, if the cpu/vdd is the first one, I just ramp it up until my actual CPU voltage is where I want it to be.
I set the actual NB voltage to 1.24 (not cpu to nb). I set CPU to NB @ 1.395, but then again I was running it at 2700MHz.
Now I need some assistance from some of you GD70 guru's. Whenever I get my OC past 3300 or so, I start getting some pretty noticeable artifacts in games like far cry 2. When I install my 2nd GPU, they get slightly better but are still there.
Now it does this regardless of NB (IMC) speed, whether it be at stock 2000MHz or 2700MHz, makes no difference.
Do you guys think that maybe upping one of the PCIe voltage settings could remedy this? Maybe adjusting PCIe frequency?
Or is this a known issue and the BIOSes take care of this?