Associate
- Joined
- 19 Aug 2011
- Posts
- 149
Trying to get a stable 4.5 Clock with my 3570k has been proving nothing short of a nightmare, with prime95 crashing on each occasion minutes after the 2hr mark. So today I started fresh, rest the jumper to clear the bios and start from scratch. This time I used a negative Offset, and what I have gotten so far, even though it's only slight, is a huge improvement on what I was experiencing before. for example: XMP/ Turbo Ratio of 41, with everything else set at default would result in CPU-Z giving a reading of 1.248~1.256v, and temps reaching the 80's under full load.
What I did was set XMP/Turbo x41/ zero % (standard) LLC/ Negative Offset -0.020/ Spread Spectrum Disabled/ resulting in CPU-Z reading of 1.136~1.144v and Temps 61c through 3hrs Prime 95 (without error)
Now I'll have to see how high I can get the ratio, and how little I have to use. I've saved this in OC Profiles in Bios in case I need to go back when I try and get an improvement.
Edit: What I don't understand is that raising the Ratio x42 and negative offset by 0.005 to -0.015v, and a Auto LLC, results in exactly the same voltage of 1.136~1.144v at full load, yet idle Core Voltage is around 1.192v compared with 0.086 set at x41
What I did was set XMP/Turbo x41/ zero % (standard) LLC/ Negative Offset -0.020/ Spread Spectrum Disabled/ resulting in CPU-Z reading of 1.136~1.144v and Temps 61c through 3hrs Prime 95 (without error)
Now I'll have to see how high I can get the ratio, and how little I have to use. I've saved this in OC Profiles in Bios in case I need to go back when I try and get an improvement.
Edit: What I don't understand is that raising the Ratio x42 and negative offset by 0.005 to -0.015v, and a Auto LLC, results in exactly the same voltage of 1.136~1.144v at full load, yet idle Core Voltage is around 1.192v compared with 0.086 set at x41
Last edited: