Intel's "God's "Quick & Dirty" OC Guide for 4.4Ghz with Haswell" provides detailed instructions.
Intel's "God's "Quick & Dirty" OC Guide for 4.4Ghz with Haswell" provides detailed instructions.
Intel God :
Prepare this guide for those seeking a fast and simple method to reach 4.4Ghz. I chose 4.4Ghz since it’s the speed most people can achieve with a Hyper 212+ EVO.
First adjustments to make in the BIOS before attempting overclocking:
1. Ensure you’re using the latest BIOS version.
2. Adjust "All Core" CPU Multiplier to 44X
3. Change CPU cache multiplier (also known as Ring bus multiplier) to 35
4. Fix the Fixed CPU Vcore to 1.25v
5. Set the CPU Cache Voltage, also referred to as Ring Bus voltage, to 1.15v
6. Adjust Vrin, or CPU Input Voltage, to 1.9v
Please be careful not to mix up "Cpu Voltage" and "CPU Input Voltage". These refer to different components: one for the CPU itself and another for the On Die VRM.
Save your changes and restart Windows.
Apply your preferred stress testing tool. I used IBT on High and monitored temperatures using Realtemp or similar software.
Execute the test 10 to 20 times, or however comfortable you feel. Typically, I run it ten times. If you don’t see a blue screen after the fifth attempt, it suggests stability. Keep repeating until you reach 10 or 20 successful runs without crashes. Congratulations – you’re stable and ready for fine-tuning.
Unfortunately, I couldn’t obtain a clear BIOS overview for everyone, so this is the next best approach.
Additional notes: Some BIOS versions may include slight offset voltages for CPU and cache. My setup used .8 for CPU and .4 for cache. If you encounter similar issues, consider lowering these values slightly (e.g., .01 each). I’m unsure if your ASRock board supports this setting. Feel free to ask any questions.
I also attempted this setup with the Asrock Z87E-ITX board and a 4670k, needing to adjust the CPU vcore to 1.3 and the cache to 1.2 to avoid BSOD at 124. This resolved the issue but caused temperatures above 80°C on the Corsair A70 with air cooling. It's unusual since I usually run at 4.2 vcore:1.15 with stable performance.
CharlyBO suggested a quick method for achieving 4.4Ghz, recommending the speed as achievable by most users with a Hyper 212+ EVO. Key adjustments should be made in the BIOS before attempting overclocking. The changes include setting the CPU multiplier to 44X, adjusting the cache multiplier to 35, fixing the CPU Vcore to 1.25v, setting the cache voltage to 1.15v, and configuring the Vrin to 1.9v. It's important not to confuse the CPU voltage with the On Die VRM voltage. After saving and restarting Windows, use a stress tool and monitor temperatures with software like Realtemp. Run the test multiple times—10 or 20 runs are recommended—and ensure stability before proceeding. Some users reported needing to lower the voltage slightly (around .01) for better stability, especially when using different boards.
I don't know the exact location, but you can usually find the offset settings in the ASUS documentation or BIOS menu options.
Hello Intel, could you please review your BIOS and let me know which settings you'd like to adjust? Thanks.
johnvonmacz :
Hi Intel GOD. Could you please take a look at my BIOS to which settings to change? Thanks
Here's the link for the pictures: https://copy.com/gsJEgAWI6w3M
John what issues are you having? Crash? Freeze? Try pushing up the CPU input voltage to 1.9v
Intel God :
johnvonmacz :
Hi Intel GOD. Could you please take a look at my BIOS to which settings to change? Thanks
Here's the link for the pictures: https://copy.com/gsJEgAWI6w3M
John what issues are you having? Crash? Freeze? Try pushing up the CPU input voltage to 1.9v
When I was running 4.3Ghz with 1.3vcore, AIDA64 Runs for 20minutes no problem. But when I tried Intelburntest, right when I run the test it BSOD. Right now, I'm currently running @4.2Ghz with 1.25vcore and it passed 20 runs of intel burn test on high but the temps are scary lol the hottest it went is 91C but the average is around 75-85C 100% Load. When I try to change the CPU Input Voltage to 1.9v the letter becomes RED. Should I still continue to make it 1.9v? Thanks
UPDATE: Tried 4.3Ghz with 1.3vcore and 2.0v input voltage, ran IBT High 5 runs and the temps is around 90-98C! I don't know if my cpu is really that bad or is there something wrong with my cooler. Kraken X60 should have better temps than 212 EVO.
🙁