Posted April 17, 2018 I've been the type of guy who for several years have been overclocking by following a very general overclocking guide for the specific CPU I am overclocking and once stable it has been a set and forget kind of thing. Recently I went from a ryzen 1700 to a i7 8700k and followed der8auer's overclocking guide, but this time I actually tried to delve slightly more into how the different settings actually work, mainly LLC settings vs core voltage. What bugs me is my idle core voltage (measured through cpu z) is at 1.296v and droops down to about 1.280 under load due to LLC. Isn't there a way to have the system reduce the core voltage on idle and increase under load? Windows power plan is at balanced, so my clocks are ramping up and down but sadly not the core voltage Specs for my rig are: 8700k, 1080ti, 16gb 3200mhz ram, maximus x formula, axi 860w, 500gb intel 600p and I am cooling it all with a custom loop. My overclocking settings are: XMP MCE off avx -3 5ghz across all cores CPU svid support off LLC5 Long and short duration package power limit to max CPU core/cache current limit max min/max cpu cache ratio 42 BCLK aware adaptive voltage off CPU core voltage override 1.31v Sorry if this is a stupid question or has been answered before, but my google skills sadly aren't helping me much Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted April 17, 2018 wouldnt using adaptive voltage work? also that 1.8 is a typo i guess? MSI GX660 + i7 920XM @ 2.8GHz + GTX 970M + Samsung SSD 830 256GB Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted April 17, 2018 Author 20 minutes ago, Neftex said: wouldnt using adaptive voltage work? also that 1.8 is a typo i guess? 1.28v I meant obviously Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted April 17, 2018 well if you want low idle voltage and "manual" under load, i think adaptive voltage is the thing youre looking for. for adaptive voltage to work you need to enable/set auto cpu svid, then enable adaptive. if you want less droop you need higher LLC iirc. its been a while since i overclocked so you better double check everything MSI GX660 + i7 920XM @ 2.8GHz + GTX 970M + Samsung SSD 830 256GB Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted April 17, 2018 the voltage doesnt really matter. its the voltage and amps together which = power. Rig Specs: AMD Threadripper 5990WX@4.8Ghz Asus Zenith III Extreme Asrock OC Formula 7970XTX Quadfire G.Skill Ripheartout X OC 7000Mhz C28 DDR5 4X16GB Super Flower Power Leadex 2000W Psu's X2 Harrynowl's 775/771 OC and mod guide: http://linustechtips.com/main/topic/232325-lga775-core2duo-core2quad-overclocking-guide/ http://linustechtips.com/main/topic/365998-mod-lga771-to-lga775-cpu-modification-tutorial/ ProKoN haswell/DC OC guide: http://linustechtips.com/main/topic/41234-intel-haswell-4670k-4770k-overclocking-guide/ "desperate for just a bit more money to watercool, the titan x would be thankful" Carter -2016 Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted April 17, 2018 overclocking via manual mode grants you higher stability. (more precisely) CPU: Ryzen 7 5800x3D | MoBo: MSI MAG B550 Tomahawk | RAM: G.Skill F4-3600C15D-16GTZ @3800CL16 | GPU: RTX 2080Ti | PSU: Corsair HX1200 | Case: Lian Li 011D XL | Storage: Samsung 970 EVO M.2 NVMe 500GB, Crucial MX500 500GB | Soundcard: Soundblaster ZXR | Mouse: Razer Viper Mini | Keyboard: Razer Huntsman TE Monitor: DELL AW2521H @360Hz | Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted April 18, 2018 Author 10 hours ago, Jumper118 said: the voltage doesnt really matter. its the voltage and amps together which = power. The thing about the voltage in idle that bugs me, is the idle temps are notably higher when overclocked. If voltage and amps together = power, can you please explain why idle temps go up even when usage is at basically 0%? Idle temps are around mid 30's and max temps hit around 70 under full prime95 load with small spikes in mid 70's but 95% of the time they stick around 65-70. I haven't delidded yet. Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted April 18, 2018 1 hour ago, Ardox said: If voltage and amps together = power, can you please explain why idle temps go up even when usage is at basically 0%? oh, he is right about this one, actually your CPU should consume 10A*x"your,vcore"=watts in idle. The 10A is dependent of your boards Powerdelivery, Software and PSU. You can lookup your CPU's power consumption in IDLE with HWMonitor or HWinfo.64. Also Sensors are not accurate at IDLE temps, its a predictive calculation calibrated to be more precisely at higher temperatures, thats maybe the reason for you to get a higher reading, but ehrm never trust readings too much especially if they are at IDLE. Some Boards show IDLE readings below ambient temperatur when using an Air or Watercooler which is physically impossible. This is my reading, i marked idle. My Vcore is 1.248, in the 3rd row you see 100% Load. If i now use adaptive voltage and the CPU reduces volts to ~0.8 in idle, my CPU's Power consumption would still be 8Watts. CPU: Ryzen 7 5800x3D | MoBo: MSI MAG B550 Tomahawk | RAM: G.Skill F4-3600C15D-16GTZ @3800CL16 | GPU: RTX 2080Ti | PSU: Corsair HX1200 | Case: Lian Li 011D XL | Storage: Samsung 970 EVO M.2 NVMe 500GB, Crucial MX500 500GB | Soundcard: Soundblaster ZXR | Mouse: Razer Viper Mini | Keyboard: Razer Huntsman TE Monitor: DELL AW2521H @360Hz | Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted April 18, 2018 1 hour ago, Ardox said: The thing about the voltage in idle that bugs me, is the idle temps are notably higher when overclocked. If voltage and amps together = power, can you please explain why idle temps go up even when usage is at basically 0%? Idle temps are around mid 30's and max temps hit around 70 under full prime95 load with small spikes in mid 70's but 95% of the time they stick around 65-70. I haven't delidded yet. Idle temps don't matter. It might be using 10w instead of 5w. Rig Specs: AMD Threadripper 5990WX@4.8Ghz Asus Zenith III Extreme Asrock OC Formula 7970XTX Quadfire G.Skill Ripheartout X OC 7000Mhz C28 DDR5 4X16GB Super Flower Power Leadex 2000W Psu's X2 Harrynowl's 775/771 OC and mod guide: http://linustechtips.com/main/topic/232325-lga775-core2duo-core2quad-overclocking-guide/ http://linustechtips.com/main/topic/365998-mod-lga771-to-lga775-cpu-modification-tutorial/ ProKoN haswell/DC OC guide: http://linustechtips.com/main/topic/41234-intel-haswell-4670k-4770k-overclocking-guide/ "desperate for just a bit more money to watercool, the titan x would be thankful" Carter -2016 Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
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