Solving 8700k (delidded + conductonaut) on Asrock z390 Extreme4
Solving 8700k (delidded + conductonaut) on Asrock z390 Extreme4
Hey peeps, been a while since I've done my last 'best possible' oc (back in the haswell days) and it's my first time using an Asrock board, so things are a little bit off for me (was constantly using Gigabyte up to this point).
I've got the 8700k and board back in 2018 and after delidding it I went on and just auto'ed everything, set LLC to level 3 and hit the 50 all core. Worked fine for a while but after around 6 months I (during the summer of 2019, so heat was probably the culprit) I'd start getting bluescreens, so I dialed it down to a 4.8Ghz, which has been running up to now autoed on 1.35v according to hwmonitor.
I decided today is the day to start understanding the Asrock bios and as far as I could find ocing guides for my board or the taichi online, they're kind of extremely shallow/basic, and I'd love if anyone can share any tips for ocing on this board.
My current (hopefully stable as I've been running Aida64 CPU+memory stress for about half an hour now) OC is still at 4.8 all core, 1.225v with LLC level 3 (HWMonitor shows it bumping to around 1.332-1.335 constantly and peaking at around 1.35 on every core) with temps ranging from the high 50s to 70C and peaking at 75. I know there's still more head room, but if I can get some tips or advice to what else I can play with (in terms of the CPU, I'll play around with memory later) other than CPU voltage and LLC level to max out this CPU, it would be great!
Specs: 8700K Delidded (cryonaut between die and IHS and mx4 to cooler)
Deepcool Captain EX240 with Corsair HD120s on it (clearly not the best cooling solution but it does the job well enough for now, as I don't have the budget to upgrade)
Asrock Extreme4 Z390
G Skill 2x8gb 3600Mhz CL17
Palit GTX 1080 Super Jetstream
Define R6 (front 3xCorsair HD120, top rad with 2xHD120s in push)
Thanks!
8700K
4.80GHz, 4.60GHz, 1.375V, 100%
8700K
4.90GHz, 4.70GHz, 1.387V, Top 99%
8700K
5.00GHz, 4.80GHz, 1.400V, Top 83%
8700K
5.10GHz, 4.90GHz, 1.412V, Top 49%
8700K
5.20GHz, 5.00GHz, 1.425V, Top 17%
8700K
5.30GHz, 5.10GHz, 1.437V, Top 4%
https://siliconlottery.com/pages/statistics
5GHz and 4.8GHz avx seems promising. It might be a good chance to skip extra vcore.
Thank you for your response!
I've experimented with 5.0 and 4.8 AVX, using 1.25v vcore and AIDA64 (AVX) without any problems.
Prime95 presents another challenge. I reached up to 1.35v vcore (which shows about 1.45v on hwmonitor) and it still crashes immediately in all three preconfigured tests.
Any suggestions on how to adjust that?
EDIT:
I also tried reverting back to 4.8 with no AVX offset, using 1.225v vcore. It seems Prime runs okay for short sessions (though I'm not sure if it's a definitive fix) and doesn't crash instantly. I might keep it at 4.8 for now since I don't need to boost performance much, but having that option would be helpful.
Thanks!
The BIOS shows 1.25 volts for the Vcore, but Prime95 increases it to 1.45 volts. That extra voltage is unusual—voltage should naturally drop when the LLC setting is lower. Make sure you're in manual mode in BIOS and check both VRM and CPU temperatures via HWInfo64.
I might have misunderstood your input - vcore reached 1.45v while I was at 1.35 with LLC level 1. I plan to run additional stress tests tomorrow using hwinfo for better accuracy. It seems unclear about the LLC configuration since CPU-Z displays a different value (1.215v) than the BIOS setting (1.225v). hwmonitor shows 1.25v for LLC/ring voltage and 1.215v for vcore, with readings around 1.3-1.35v per core. Perhaps I misinterpreted the settings or made an error.
The Asrock motherboard you're referring to, the LLC 1, is indeed the best choice for bench testing and heavy cooling. The 1.45 volts load seems excessive for the 8700k processor. I recommend lowering your voltage and checking the required Vcore for stability. Running it at 1.45 volts will also generate significant heat in both the VRMs and the CPU.
Yea, I get that 1.45v could be too high for the core voltage but I'm not focusing on VCore specifically—I'm talking about VID.
I believe I don't need to check it because it's just a rating that doesn't affect overclocking, or maybe I'm mistaken and VID is an important measurement?
I think VID is a voltage table the motherboard uses to provide enough power to the CPU, while VCORE is the actual value being delivered.
The issue is that VID changes when I adjust the core voltage, so should I still check it or not?
I'm not sure if it's specific to Asrock or just the tracking software's reading, but everything seems odd:
I'm trying to grasp the program readings and how they work with the core voltage plus the LLC setting.
Right now the BIOS core voltage is set to 1.3v, which allows 4.8Ghz on all cores, no AVX offset, and the ring frequency is at 4.4Ghz.
LLC is set to auto (Level 5).
CPU-Z, HWMonitor, and HWInfo all show a VCore of 1.264, dropping down to 1.13v–1.2v when I run AIDA64.
I really don't understand what's happening with these values.
I understand, I also don't think so, which suggests there might be a strange misinterpretation between the monitoring software and the bios. Basically, it looks like the vcore value you set in the bios is interpreted with a -0.03v offset when using any LLC level. Right now it's stable at 5Ghz and 4.8AVX, with a 1.375 vcore, which drops to 1.34v via cpu-z and falls between 1.27-1.3v at the LLC level 5. It's really hard to figure out what to believe.
LLC level 5 is the minimum I think on asroak boards, so it should be considered very low. It seems you might be able to push it even higher.