i7

[adi59]

I wonder how to overclock Inspiron 15 7000, i7, the BIOS won't let me?

[SpikeSoprano]

If it's a prebuilt Dell you probably won't be able to oc it, they have their own bios from Dell and oc'ing options are removed.

[Waco]

Laptops are generally not overclockable...for good reasons. The power circuitry and cooling can usually only handle the stock clocks for a few minutes before throttling as is.

[adi59]

:wave:It is funny that they mention higher freqs. than what is running at,

[SpikeSoprano]

That would most likely be the turbo mode, if you were to run a program that  puts the pc under load it should automatically bump itself up.

[ccokeman]

That would most likely be the turbo mode, if you were to run a program that  puts the pc under load it should automatically bump itself up.

 

Only in lightly threaded applications.

[adi59]

Thanks for the input.

[Braegnok]

On most pc's that have no overclocking options in BIOS,.. you can use software to overclock/adjust FSB frequency via system management bus ,.. using CPUFSB software you type in your PLL IC make and model # and play around till you get a mild stable overclock,..  no other adjustments can be made only FSB so you are vary limited to how far you can go and be stable without Vcore adjustment,.. you can use the link below for how to find your PLL chip (PLL find) and how to use software,.. enjoy and watch your temps,..    

 

http://www.cpufsb.de/

Edited August 3, 2014 by Braegnok

[GabrielT]

On most pc's that have no overclocking options in BIOS,.. you can use software to overclock/adjust FSB frequency via system management bus ,.. using CPUFSB software you type in your PLL IC make and model # and play around till you get a mild stable overclock,..  no other adjustments can be made only FSB so you are vary limited to how far you can go and be stable without Vcore adjustment,.. you can use the link below for how to find your PLL chip (PLL find) and how to use software,.. enjoy and watch your temps,..    

 

http://www.cpufsb.de/

 

+1 I have done this, usually 10-20% is possible with most prebuilt desktops, not so sure what you could get away with with a laptop. 

Try not to brick that beast. 

[cchalogamer]

Even if you do find a program that will let you bump the "fsb" you'll likely stall out before you hit 104, based on what dell offers at the moment it's a 2Ghz i7-4510U (really it's a super low voltage desktop i3 in specs with 2 cores and 4 threads just like the i5 in my tablet) so you're looking at a max of around 80-100mhz added pre turbo and 125mhz max single thread turbo.  Not much of an OC for the trouble really.  Another concern is the limited cooling these things usually have making then run rather toasty (though safe) and any extra heat will keep them from being able to use the extra turbo speed.  

 

However the BIGGEST issue is with the TDP of 15w any extra performance that makes the CPU draw more power will again disable turbo because it's setup by default power savings to NOT draw more than the 15w spec.  Hell my tablet can't even use both the full CPU speed and GPU speed at the same time in the puny 11.5w  it has to play with. (You can ignore the GPU speed comment here and later one if it happens to be one of the VERY few in this line that shipped with a dedicated GPU as then the GPU on the i7 wouldn't be used to GPU heavy tasks anyway and doesn't factor into that)

 

As for not seeing the "max 3.1" they rate the CPU at (again sticking with the 4210U, specs vary if they had an older model that used another CPU) 1 It could be load on the GPU if an app it using it stopping it from reaching max turbo speed, 2 that 3.1 is going to be for single threaded apps, going back to the i5-4300Y in my tablet (2 core 4 threads also) It's 1.6 Ghz with up to 2.3 Ghz, well with all 4 threads loaded it doesn't go over 2.0, with 2 threads 2.1/2.2 tops and occasionally it'll be doing something but only the ONE thing and briefly hit 2.3Ghz.  In other words if you load yours down take 200-500mhz off that max spec with no video load and that's what it SHOULD be able to do again assuming heat and other factors are in check (and they should be with an OEM system). 

 

Of course power saving features will keep the CPU running much slower most of the time to save battery if it doesn't NEED to be fast so you'll likely be sitting in the 1Ghz(or less)-2Ghz range most of the time anyway.

[Disparaitre]

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Edited September 20, 2014 by WARDOZERX