So I am having issues keeping my temps down for my overclock since the mobo is giving me too much voltage when I stress test. I will run down the hardware I am using so no one has to ask and what clocks I am trying to achieve.
CPU: 8370e Mobo: ASRock 990FX Extreme9 CPU cooler: CM Hyper 212 Evo PSU: Thermaltake SMART 750w 80+ Bronze
Okay so I am only trying a very basic overclock.. I am trying to get it to 3.8 or 4.0-4.2ghz. For a clock of 3.8ghz all I need is a vcore setting of 1.1875, yet when I run through prime95 CPUz says it is at 1.28-1.3v(which I assume is right, as at idle it reads my set vcore correctly). Of coarse with just an 212 EVO it is reaching and passing safe temps for this cpu. I can get the system stable.. I just cant get the vcore under control and don't know what could be causing the spike in voltage. No matter what vcore setting I use it seems to go .12v higher than where I set it once the system is being stressed(happens in any stress test program, not just prime95). I can get up to 4.2ghz at 1.2125 voltage and be stable, but again it passes 1.3v once stressed. These clock speeds and voltages are fine for everyday use and I even game with this PC for hours and it never passes 45c on the CPU. I just am worried that one day a program will stress my CPU or I might even get one of those mining viruses and my cpu will start being used at full load and I will have the cpu overheat or die on me.
as for setting in the bios, I have all power saving features off(cool n quiet, c1e, c6, any other amd power feature), LLC off, voltage set manually, turbo mode off, frequencies set manually.
Prime95 is notorious for hijacking core voltages on processors. I'd recommend not using Prime95 and use something like OCCT. So Prime95 is responsible for your core voltage problem.
First, use OCCT instead of prime95. Prime is just no good for anything current. Second, you might want to static the voltage instead of leaving it on auto if you haven't already done so.
Wow that actually worked. vcore still went up.. but after 6 minutes I was at 55c and the voltage only spiked to 1.264 at the max... Gonna mess with LLC some more and see what happens.
Okay so messing around I was able to get 4.2ghz @ 1.2250v and with a LLC of 75% stabe-ish.. I was able to run OCCT for another 6 minutes with a max temp of 49c and the vcore only spiking to 1.24x at the most. Thank you guys(or gals?) for all the help. Never had to use LLC with an overclock before but it did the trick. Gonna see how far I can push this now(doubt much more).
That board is notorious for vdroop. Voltage to the CPU decreasing when under load. That's why you see the increase in voltage (what's doing this line load, I'm not sure). LLC (load line calibration) is actually suppose to combat this by supplying more voltage when voltage drops. Maybe it was set to extreme before?