Hi all,
I've successfully OC'd on Override (fixed) Voltages for my CPU and Cache/Ring/Uncore.
Question: Given my attached (well, linked below) images from the BIOS, How can I switch now to Adaptive on this mobo and achieve the desired result of preventing over-voltage on turbo/full load? (Or can I?) I'm already happy with my override/fixed voltage at full load from stress testing, and now want to capitalize on power-saving features of my Haswell CPU (scroll down for hardware details).
Parsec provided interesting insights here on Extreme6 vs Extreme4 back in December 2013, so I'm not overly optimistic that Asrock has given me the options I need to meet my desired outcome, but it's already almost June.
Please see my attached images for a walkthrough of my BIOS screens to understand what is available. I've highlighted the CPU Adaptive fields to allow you to read the help description, and the same descriptions and voltage options are available for the Cache Adaptive fields (so I didn't redundantly take more pics with my phone). It seems I can go Adaptive, set an additional offset (min of 0.8V, great, that's the opposite of what I want). And then I can apply an additional offset of -1V to 2V.
Adaptive applies to the turbo/extreme end of the voltage range, as depicted here, correct? So by setting the first field to add its minimum value of 0.8V, how does that affect the curve? Does the second offset field allow me to counter that 0.8V, or will a -0.8V value actually apply to the whole curve and screw up my idle/low-load range? If the settings were a little more advanced, I'd just want to select Adaptive, tell it I want a Vcore Max of 1.17V, and to apply a negative adaptive offset of -0.05 or -0.10 to prevent/offset it from throttling up voltages under high-stress/load. But these fields offered by the Z87 Extreme4 are confusing me. What do you guys all think is possible, or that I should/can/cannot do?
My computer (relevant details):
I can later document my testing and results even further, to give others more info on my efforts (I'm amazed at the amount of OC talk online and sometimes the lack of results/details/pics/mobo & bios settings, lol) but it's not really as important to the primary question. So I'll wait for a few posts.
Image - Main BIOS screen
Image - CPU/Cache ratios
Image - RAM settings
Image - Override voltages
Image - "Vcore Adaptive Voltage setting"
Image - "Vcore voltage additional offset setting"
Thanks in advance.
I've successfully OC'd on Override (fixed) Voltages for my CPU and Cache/Ring/Uncore.
Question: Given my attached (well, linked below) images from the BIOS, How can I switch now to Adaptive on this mobo and achieve the desired result of preventing over-voltage on turbo/full load? (Or can I?) I'm already happy with my override/fixed voltage at full load from stress testing, and now want to capitalize on power-saving features of my Haswell CPU (scroll down for hardware details).
Parsec provided interesting insights here on Extreme6 vs Extreme4 back in December 2013, so I'm not overly optimistic that Asrock has given me the options I need to meet my desired outcome, but it's already almost June.
Please see my attached images for a walkthrough of my BIOS screens to understand what is available. I've highlighted the CPU Adaptive fields to allow you to read the help description, and the same descriptions and voltage options are available for the Cache Adaptive fields (so I didn't redundantly take more pics with my phone). It seems I can go Adaptive, set an additional offset (min of 0.8V, great, that's the opposite of what I want). And then I can apply an additional offset of -1V to 2V.
Adaptive applies to the turbo/extreme end of the voltage range, as depicted here, correct? So by setting the first field to add its minimum value of 0.8V, how does that affect the curve? Does the second offset field allow me to counter that 0.8V, or will a -0.8V value actually apply to the whole curve and screw up my idle/low-load range? If the settings were a little more advanced, I'd just want to select Adaptive, tell it I want a Vcore Max of 1.17V, and to apply a negative adaptive offset of -0.05 or -0.10 to prevent/offset it from throttling up voltages under high-stress/load. But these fields offered by the Z87 Extreme4 are confusing me. What do you guys all think is possible, or that I should/can/cannot do?
My computer (relevant details):
- Intel Core i5-4670K (my stock cpu performance: 3.4GHz CPU w/ 3.8GHz turbo @ Vcore=1.09V), w/ Arctic Silver Ceramique 2 thermal compound
- ... overclocked using fixed overrides at INPUT Vccin=1.87V, CPU 43x/4.3GHz @ Vcore=1.17V, CACHE 38x/3.8GHz @ Vcache=1.12V, LLC level 3 (50%)
- ... temps on OC using Prime95 Blend stress test average around 70 C, max at 84 C, and min around 60C. CPU idle/no-load temps of 28-34 C.
- Kingston HyperX Beast 2400Mhz CL11 @ 1.65V
- Cooler Master Hyper 212 Evo cooler, single fan/push thru fins
- Fractal Design Define R4, w/ 4 fans (2 stock silent fans + 2 Noctua NH-A14 FLX, one of each type in front and in rear-top for negative/pulling airflow)
- Thermaltake Toughpower Grand 850W 80 Plus Gold
- Asrock Z87 Extreme4, UEFI BIOS version 2.70 (latest non-beta as of today)
I can later document my testing and results even further, to give others more info on my efforts (I'm amazed at the amount of OC talk online and sometimes the lack of results/details/pics/mobo & bios settings, lol) but it's not really as important to the primary question. So I'll wait for a few posts.
Image - Main BIOS screen
Image - CPU/Cache ratios
Image - RAM settings
Image - Override voltages
Image - "Vcore Adaptive Voltage setting"
Image - "Vcore voltage additional offset setting"
Thanks in advance.
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