9600KF Unexpected Overclock
Posted: Sun Sep 26, 2021 12:51 pm
So, it would seem my 9600kf is a little odd. For a while now I was hitting 4.8ghz @ 1.2v and 4.8ghz avx @ 1.248v. I would then have to increase voltage by .05v for every 100mhz to be fully stable so 5ghz is my max before pushing over 1.35v for 5.1ghz+.
After messing around today for most of it, it turns outs cache ratio is the issue. As soon as I go above 45x cache I have to add a lot more voltage to be stable as above. So at 4.8ghz I was at 4.5ghz cache and add 100mhz to both for making me add .05v to be stable.
So i did a little test and kept cache at 4.5ghz and surprize I am stable so far at 5ghz @ 1.264v and 5ghz avx @ 1.308v. I tried cache 4.6ghz and I suddenly needed 1.296v non avx and 1.344v avx to be stable and voltage only increased for each 100mhz cache.
Strange that my 5ghz avx load dropped from 150watts to 135watts. that's a large saving in energy. so to make sure I am fully stable I fired up a few games varying in cpu usage. from most cpu intense first we have warzone, ark survival evolved, killing floor 2 and crossout. All past for 1 hour gameplay each. The gameplay is the main reason for me having to take a whole day testing but so far 5ghz stable far lower then expected
5.1-5.2ghz here I come, maybe?
After messing around today for most of it, it turns outs cache ratio is the issue. As soon as I go above 45x cache I have to add a lot more voltage to be stable as above. So at 4.8ghz I was at 4.5ghz cache and add 100mhz to both for making me add .05v to be stable.
So i did a little test and kept cache at 4.5ghz and surprize I am stable so far at 5ghz @ 1.264v and 5ghz avx @ 1.308v. I tried cache 4.6ghz and I suddenly needed 1.296v non avx and 1.344v avx to be stable and voltage only increased for each 100mhz cache.
Strange that my 5ghz avx load dropped from 150watts to 135watts. that's a large saving in energy. so to make sure I am fully stable I fired up a few games varying in cpu usage. from most cpu intense first we have warzone, ark survival evolved, killing floor 2 and crossout. All past for 1 hour gameplay each. The gameplay is the main reason for me having to take a whole day testing but so far 5ghz stable far lower then expected
5.1-5.2ghz here I come, maybe?
