Brand new overclocker here, doing my first attempt. By the way, great thread and guides for this. Some really great resources--thank you very much for the help already. However, I've been at it for a few hours now, and I've got some questions.
I have been trying 125 BCLK x 37 for a 4.6 overclock for some time now, and I have been unsuccessful. I think this is all due to too low of Vcore voltage. I started at Vcore 1.3 and that was stable, then I activated IES (Intelligent Energy Saver) power savings to see what would happen, and it slowly reduced over time all the way to 1.288 while idling. So, I cranked up the load again to see what would happen to the Vcore voltage. This is where things get interesting. According to my CPUZ/ASRock Tuning Utility, the Vcore voltage remained at 1.288. What exactly is going on here?
So I tried some stress tests, using BurnInTest, and they all passed, so I tried my current favorite game (Planetside 2), and I started having graphical issues. Not artifacting or anything like that, but first the game thought I didn't have drivers, then the once I got it to launch the game would randomly crash. I remembered the guide says that Sin0822's guide
said that modifying BLCK can also effect your GPU, so I figured maybe this was my problem. Was my diagnosis correct here?
So I started playing with Vcore more from here, turning it down to see if it could run without IES and set at a certain amount (instead of auto). I tried everything from 1.265-1.295 in 0.010 increments, and none of them were stable for more than a few seconds under full load.
So I scrapped the BCLK 125 with x37 cpu ratio plan, as it seemed like it was the root issue.
Now I'm working on a BCLK 102.4 x 43 cpu ratio plan to produce 4.4 GHz, and 30 minutes into the stress test it's going very well. I'm curious about how my numbers measure up though, and to see if I could tweak anything for superior performance. Once again, this one was running higher at the beginning, but after enabling IES it turned the Vcore down nicely. (I'm still not sure why this works even while under load?) Ideally I'd like to search out the lowest stable Vcore so that I can try and preserve as long of a life in these components as possible.
If anyone can, I'd be very curious to see what I'm doing wrong/how I can improve.
i7-3820, ASRock Extreme 6, H100i Cooler