i5 8400 not hitting 4ghz

[Altruist]

It never hits 4ghz in task manager, when i stress test with intel xtu it doesnt hit 4ghz...

i'm confused, i know it will only hit 4ghz on 1 core

[Mira Yurizaki]

If you're doing a stress test, it's likely one which will stress all the cores, so you'll never see it get to 4GHz. You need to run a single threaded test like CineBench in single threaded mode.

[wildgg]

if all cores are stressed you should see around 3.8GHz witht hat cpu.

it will only boost up to 4GHz in single threaded tasks.

 

also sometimes tasks manager isn't the most accurate, try to use HWMonitor so you can see all of the cores and their core speeds under load.

 

[Jurrunio]

Turn off all but 1 core, then run benchmarks.

[Altruist]

2 minutes ago, Jurrunio said:

Turn off all but 1 core, then run benchmarks.

 

5 minutes ago, wildthing said:

if all cores are stressed you should see around 3.8GHz witht hat cpu.

it will only boost up to 4GHz in single threaded tasks.

 

also sometimes tasks manager isn't the most accurate, try to use HWMonitor so you can see all of the cores and their core speeds under load.

 

 

9 minutes ago, M.Yurizaki said:

If you're doing a stress test, it's likely one which will stress all the cores, so you'll never see it get to 4GHz. You need to run a single threaded test like CineBench in single threaded mode.

ohhhhh, games are single threaded right?

Can i use a game plus msi after burner?

[Firewrath9]

Games usually use up to 4t. Older games might use 1 or 2, csgo uses 2 i think but BF1 prob can use 4.

[Altruist]

Just now, Firewrath9 said:

Games usually use up to 4t. Older games might use 1 or 2, csgo uses 2 i think but BF1 prob can use 4.

Cinebench it is.

[GoldenLag]

18 minutes ago, Altruist said:

 

 

ohhhhh, games are single threaded right?

Can i use a game plus msi after burner?

Old games are singlethreaded. New ones utilize up to 6 threads. Some use even more. In rare occasions like Civ 5 it scales with very high core counts

[Jurrunio]

20 minutes ago, Altruist said:

 

 

ohhhhh, games are single threaded right?

Can i use a game plus msi after burner?

few games use only a single thread these days. Most notably, Crysis.

 

yes, you can use afterburner with other games at the same time.

[Mr. Question Asker]

On 7/8/2018 at 10:13 PM, Altruist said:

It never hits 4ghz in task manager, when i stress test with intel xtu it doesnt hit 4ghz...

i'm confused, i know it will only hit 4ghz on 1 core

Don't worry! The performance won't be compromised!

 

Here's how the turbo boost works on Intel 8400

 

2.8ghz = Only low load applications.

4ghz = When only a single core is loaded up

3.6-3.8ghz = When all 6 cores are loaded up.

So you'll always be above 3.2ghz when doing demanding stuff.

[MasterKairi]

not for my insiron 5680 motherboard ,,,it hard locked to 2.8 ghz period  i checked hwinfo and several other cpu monitors its locked no mistake on my part all intel speed tech is off in bios which is literally all this pc allows....turbo boost is disabled through bios as well so its hard locked to 2.8ghz why is dell ripping me off for over a ghz  ?

 

[unclewebb]

@MasterKairi

 

The CPU cannot reach maximum speed if you disable SpeedStep and Speed Shift in the BIOS. 

 

Before blaming Dell, make sure these are enabled. Post some screenshots of ThrottleStop if you are still having problems,. Something is not set right. Include the FIVR and TPL windows so I can see what your turbo power limits are set to