Intel Turbo boost not working

[Colo.-]

So I bought a cooler master hyper 212 evo so I could turbo boost my intel i5 8400 over 2.8 ghz, but it refuses to go over 2.8. I enabled it in my bios, but it still does not help performance.

[3rrant]

12 minutes ago, Colo.- said:

So I bought a cooler master hyper 212 evo so I could turbo boost my intel i5 8400 over 2.8 ghz, but it refuses to go over 2.8. I enabled it in my bios, but it still does not help performance.

The i5-8400 cannot be overclocked. The turbo-boost 4Ghz is for one single core only and for a short period of time, set by Intel and maybe slightly extended by some motherboards, but it's not related to the CPU temperature. Only Ryzen autoscale with temperature differences.

[Colo.-]

Just now, 3rrant said:

The i5-8400 cannot be overclocked. The turbo-boost 4Ghz is for one single core only and for a short period of time, set by Intel and maybe slightly extended by some motherboards, but it's not related to the CPU temperature. Only Ryzen autoscale with temperature differences.

Ah, thank you for letting me know

[RAM555789]

Have you check what temps you are actually getting after installing the cooler master? It could be the mounts a bit off and your CPU is still getting hot.

[3rrant]

1 minute ago, Colo.- said:

Ah, thank you for letting me know

You can try to activate MCE if you motherboard supports it to "kinda slightly auto-overclock it", this might net you some small performance improvements. Without this and any other options enabled, your CPU should temporarily reach 4Ghz on one core and A MAXIMUM of 3.8Ghz on 6 cores. If you NEVER go past 2.8Ghz in any case or on any core, than something is not working right.

[RAM555789]

Yeah like my i7 8700 can technically boost up to 4.6GHz and has a base of 3.2GHz, however when put under stress, all the cores usually shit right around 3.4-3.6GHz. I also can't get my CPU above 81C with the stock cooler during a Prim95 stress test should it's also not throttling.