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Stoyan_V1

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16 days ago

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Stoyan_V1

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October 20th, 2026 15:13

Latitude 7450 low CPU clock speed's

Hi All, 

 

We seems to have issue with ours's Latitude 7450 and some 7440 laptop.

CPU some time runs below 1 GHz 

User uploaded image

and wen we do CPU benchmark test CPU stays arround 1.4 - 1.5 GHzUser uploaded image 

I have try updating BIOS and all Intel drivers & GPU drivers but no fix yet. Found few forums with similar issues for Dell and Lenovo but  no fix in the post's.

 

Wonder if anyone has a fix for this?

 

Thanks 

  • E

    ejn63

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    Posted October 20th, 2026 16:30

    On AC power or battery?  And does the system correctly recognize the AC adapter (F2 at powerup to check)?

     

  • S

    Stoyan_V1

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    Posted October 21st, 2026 08:55

    @ejn63​ yes on power and yes power adapter is ok and same on USB-C dock.

  • E

    ejn63

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    Posted October 21st, 2026 12:37

    @Stoyan_V1​

     

    What happens with a direct connection to an OEM Dell AC adapter?

     

  • S

    Stoyan_V1

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    Posted October 30th, 2026 18:37

    @ejn63​ when I change the power source the CPU seems to handling better but after time it goes back to limiting the power and under short test gets down to 13W and lower. 

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