I5 6500 Skylake - showing only 3 cores

[Kubisss]

Hi. I bought a new pc and i got I5 6500 skylake in it and thats quad core.
However my pc shows only 3 cores . In BIOS , in msconfig , in CPU-Z.
Can someone help me ?

Thanks.

 

[Calculagator]

Could you post a screenshot of CPU-Z? I would like to see that.
Some motherboards can disable one or more cores, but that's a fairly rare feature. I'm not sure if any skylake motherboards can do that. The most common implementation that I've seen is to either enable all cores or just one.

You might try resetting your bios. If that doesn't work, I would return it.

 

[Kubisss]

Could you post a screenshot of CPU-Z? I would like to see that.
Some motherboards can disable one or more cores, but that's a fairly rare feature. I'm not sure if any skylake motherboards can do that. The most common implementation that I've seen is to either enable all cores or just one.

You might try resetting your bios. If that doesn't work, I would return it.

http://imgur.com/a/vpSFL

 

[Calculagator]

That is very strange. If a bios reset doesn't fix it, I would return/exchange it.

 

[rgd1101]

How many cores/threads task manager show?

 

[Mikel_4]

open search on windows task pane, type msconfig, select msconfig, choose boot tab, choose sub tab advance boot, now you can look the opened new window, check Number of Processor
https://en.wikipedia.org/wiki/Skylake_(microarchitecture)
http://www.anandtech.com/show/9751/examining-intel-skylake-speed-shift-more-responsive-processors
Intel call it speed shift

 

[Kubisss]

How many cores/threads task manager show?

http://imgur.com/a/PLskx

3 too

 

[Kubisss]

open search on windows task pane, type msconfig, select msconfig, choose boot tab, choose sub tab advance boot, now you can look the opened new window, check Number of Processor
https://en.wikipedia.org/wiki/Skylake_(microarchitecture)
http://www.anandtech.com/show/9751/examining-intel-skylake-speed-shift-more-responsive-processors
Intel call it speed shift

I dont really have time to find important info from these pages.
My msconfig shows 3 too.
So whats exactly is this speed shift ?

 

[rgd1101]

What is the full system spec?

 

[Kubisss]

What is the full system spec?

http://imgur.com/a/Wpy1R here

 

[rgd1101]

motherboard make and model?

 

[Kubisss]

motherboard make and model?

Its ASUS B150M PRO GAMING.

And what do you mean by make ? Sorry cant speak english 😀

 

[rgd1101]

http://dlcdnet.asus.com/pub/ASUS/mb/LGA1151/B150M_PRO_GAMING/E11309_B150M_PRO_GAMING_UM_V2_WEB.pdf
page 2-24
Active Processor core - Check what settings is in your bios

 

[Kubisss]

http://dlcdnet.asus.com/pub/ASUS/mb/LGA1151/B150M_PRO_GAMING/E11309_B150M_PRO_GAMING_UM_V2_WEB.pdf
page 2-24
Active Processor core - Check what settings is in your bios

I have 3 in there.

Omg i need to check All ? Am i rly that retarded ?

 

[rgd1101]

http://dlcdnet.asus.com/pub/ASUS/mb/LGA1151/B150M_PRO_GAMING/E11309_B150M_PRO_GAMING_UM_V2_WEB.pdf
page 2-24
Active Processor core - Check what settings is in your bios

I have 3 in there.

Omg i need to check All ? Am i rly that retarded ?

Yes, change to ALL

 

[Kubisss]

http://dlcdnet.asus.com/pub/ASUS/mb/LGA1151/B150M_PRO_GAMING/E11309_B150M_PRO_GAMING_UM_V2_WEB.pdf
page 2-24
Active Processor core - Check what settings is in your bios

I have 3 in there.


Omg i need to check All ? Am i rly that retarded ?

Yes, change to ALL

All right. I changed to All but still the same.
BUT i noticed that in device manager under CPU there is 4 now. There was 3 when i had 3 in BIOS.

 

[rgd1101]

http://dlcdnet.asus.com/pub/ASUS/mb/LGA1151/B150M_PRO_GAMING/E11309_B150M_PRO_GAMING_UM_V2_WEB.pdf
page 2-24
Active Processor core - Check what settings is in your bios

I have 3 in there.


Omg i need to check All ? Am i rly that retarded ?

Yes, change to ALL

All right. I changed to All but still the same.
BUT i noticed that in device manager under CPU there is 4 now. There was 3 when i had 3 in BIOS.

All right. I changed to All but still the same.
What else is the same?
Do what Mikel_4 said about msconfig

 

[Kubisss]

http://dlcdnet.asus.com/pub/ASUS/mb/LGA1151/B150M_PRO_GAMING/E11309_B150M_PRO_GAMING_UM_V2_WEB.pdf
page 2-24
Active Processor core - Check what settings is in your bios

I have 3 in there.


Omg i need to check All ? Am i rly that retarded ?

Yes, change to ALL

All right. I changed to All but still the same.
BUT i noticed that in device manager under CPU there is 4 now. There was 3 when i had 3 in BIOS.

All right. I changed to All but still the same.
What else is the same?
Do what Mikel_4 said about msconfig

msconfig is same , cpu-z is same , task manager is same . They all shows 3 cores. Only thing that actually shows 4 is device manager.

 

[rgd1101]

http://dlcdnet.asus.com/pub/ASUS/mb/LGA1151/B150M_PRO_GAMING/E11309_B150M_PRO_GAMING_UM_V2_WEB.pdf
page 2-24
Active Processor core - Check what settings is in your bios

I have 3 in there.


Omg i need to check All ? Am i rly that retarded ?

Yes, change to ALL

All right. I changed to All but still the same.
BUT i noticed that in device manager under CPU there is 4 now. There was 3 when i had 3 in BIOS.

All right. I changed to All but still the same.
What else is the same?
Do what Mikel_4 said about msconfig

msconfig is same , cpu-z is same , task manager is same . They all shows 3 cores. Only thing that actually shows 4 is device manager.

In msconfig, can't check to change # or core?

 

[Kubisss]

http://dlcdnet.asus.com/pub/ASUS/mb/LGA1151/B150M_PRO_GAMING/E11309_B150M_PRO_GAMING_UM_V2_WEB.pdf
page 2-24
Active Processor core - Check what settings is in your bios

I have 3 in there.


Omg i need to check All ? Am i rly that retarded ?

Yes, change to ALL

All right. I changed to All but still the same.
BUT i noticed that in device manager under CPU there is 4 now. There was 3 when i had 3 in BIOS.

All right. I changed to All but still the same.
What else is the same?
Do what Mikel_4 said about msconfig

msconfig is same , cpu-z is same , task manager is same . They all shows 3 cores. Only thing that actually shows 4 is device manager.

In msconfig, can't check to change # or core?

I can change but only to 3 cores max.

 

[Multipack]

Maybe clear your CMOS? After a CPU change you often need one for things to read the real system info, even though you didnt technically change CPU's I know. Just a suggestion.

 

[Kubisss]

Maybe clear your CMOS? After a CPU change you often need one for things to read the real system info, even though you didnt technically change CPU's I know. Just a suggestion.

you mean reset bios ?

 

[Multipack]

By removing CMOS battery/clearing jumper yes. Only do it if you know your current BIOS settings or can back them up to a USB though, as it may stop your OS booting otherwise. The posters above will be able to help you with that more than me, its just something I experienced myself when, after upgrading CPU, it was still reading the old CPU!

http://www.howtogeek.com/131623/how-to-clear-your-computers-cmos-to-reset-bios-settings/

 

[Kubisss]

By removing CMOS battery/clearing jumper yes. Only do it if you know your current BIOS settings or can back them up to a USB though, as it may stop your OS booting otherwise. The posters above will be able to help you with that more than me, its just something I experienced myself when, after upgrading CPU, it was still reading the old CPU!

http://www.howtogeek.com/131623/how-to-clear-your-computers-cmos-to-reset-bios-settings/

I just did that and nothing changed.

 

[Multipack]

Did what? Removed battery? Or just reset settings?

You could maybe try running Intel's processor diag with all four cores enabled. Maybe you have a faulty CPU?

https://downloadcenter.intel.com/download/19792/Intel-Processor-Diagnostic-Tool