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Overclock suggestions

drop4205
Level 12
I recently went from 1701 to 1902 bios. It didn't like the setup I had before. So I start the process over again. So far my overclock on the cpu is as follows

bclk 100
all 6 cores 43 @1.35v
cpu cache ratio at 43
agent voltage at 1.0v
ram set at stk for now 2666 T2
I ran realbench stress for a while no issues. Ran benchmark and passed with 159678 my best to date but no overclock on ram or gpu yet. My max temps on all cores were average 67 c with the highest one bounced to 71c during stress test. What is the next setup that I should take in the overclock I have? Up the cpu more along with the cache?
There is a lot to learn and read up on overclocking but it is fun.
Maximus XI Formula, I9-9900k, Phantex Evolove X, Seasonic Titanium 850W, Custom loop PE360+SE360 Rad, G.Skill Trident Z F4-3200C14 32g, Nvidia Reference RTX 2080 TI, Samsung 970 EVO Plus 1Tb, Windows 11
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6 REPLIES 6

Menthol
Level 14
Yes the next step is CPU core, not all CPU's are capable of running the cache at same speed as the cores, cache overclock helps with memory bandwidth but very little real world usages, memory speed of 2666 is overclocked from default 2133, you may need to determine what memory chips are on your modules, Hynix or Samsung then try the timings of the higher speed modules to see if yours will run at that speed, or try the memory presets that are available in the ROG bios

drop4205
Level 12
how do I find what memory chip is in my memory? Thanks
Maximus XI Formula, I9-9900k, Phantex Evolove X, Seasonic Titanium 850W, Custom loop PE360+SE360 Rad, G.Skill Trident Z F4-3200C14 32g, Nvidia Reference RTX 2080 TI, Samsung 970 EVO Plus 1Tb, Windows 11

Qwinn
Level 11
1.35v seems pretty excessive for 4.3Ghz. I consider my chip dead average, maybe even a little below, and I can get 4.4Ghz with 1.28v under load.

Your system specs say you were at 4.5? What voltage was that at? If you're having to lower your oc that badly, I'd revert to the previous bios.

drop4205
Level 12
4.5 on the other bios was @ 1.37v. I just started with 1.35v at 43. I may try to up it to 44 or 45 at 1.35 and see if not good then I will back the 1.35 down on the 43 I have.
Maximus XI Formula, I9-9900k, Phantex Evolove X, Seasonic Titanium 850W, Custom loop PE360+SE360 Rad, G.Skill Trident Z F4-3200C14 32g, Nvidia Reference RTX 2080 TI, Samsung 970 EVO Plus 1Tb, Windows 11

Qwinn
Level 11
Really you could probably do 4.3 at 1.25, or even less. 4.4 shouldn't require more than 1.3v (and probably less). 1.35-1.37 is generally higher than most people would recommend for 24/7 use, at least if you plan on keeping that processor for more than a year or two. Being able to keep the chip cool helps, a lot, but just the higher voltage alone can also cause degradation.

My advice? Find the highest OC you can get fully stable at 1.3v under load. Once you've found that, try lowering the voltage bit by bit to make sure you're still not using more than you need. Use that for your 24/7 OC.

drop4205
Level 12
thank you I will lower voltage and test more. How do I find out about the ram I have if its Samsung or whatever?
I am at 45 at 1.26v now. Gotta try a lower voltage in the morning. After I ran the benchtest I had a lower score? All things were same but voltage was lower and cpu was up from 43 to 45 all cores. Any idea why?
Thank you
Maximus XI Formula, I9-9900k, Phantex Evolove X, Seasonic Titanium 850W, Custom loop PE360+SE360 Rad, G.Skill Trident Z F4-3200C14 32g, Nvidia Reference RTX 2080 TI, Samsung 970 EVO Plus 1Tb, Windows 11