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Overclocking i7-720Q To i7-740QM Speed

post #1 of 12
Thread Starter 
Hey guys just bought a Dell XPS 1645 laptop and was wondering if it can be overclocked to i7-740QM speeds? If so any guides? Thanks Noob.redface.gif
post #2 of 12
troll?
 
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HTPC
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i7 3930k @ 4.8ghz Asus Rampage IV Extreme 2x EVGA GTX 980 Hydro Copper Samsung 16gb @ 10-11-11-21 1T - 2400mhz 
Hard DriveCoolingCoolingCooling
Samsung 850 EVO 500gb, Crucial M4 256gb EK Supremacy full-nickel, EK, MB and GPU blocks 2x Alphacool Monsta 480, Koolance RP-452X2 2x Aquacomputer D5 Usb, MPS Flow 400, Inline Te... 
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post #3 of 12
Thread Starter 
Quote:
Originally Posted by sti-06;12590957 
troll?

Nope...
post #4 of 12
You usually cannot overclock laptops, becuase nowadays, OEMS lock the PLLs. You could give SetFSB a try though.
post #5 of 12
Thread Starter 
Quote:
Originally Posted by hli53194;12591462 
You usually cannot overclock laptops, becuase nowadays, OEMS lock the PLLs. You could give SetFSB a try though.

Well thats gay. I dont want to go messing around if no one has ever attempted it, I dont want to screw anything up.
post #6 of 12
There's a reason that laptops cannot be overclocked aside from the fact that OEMs lock down the BIOS, it has a lot to do with cooling and power considerations the same way that people don't recommend overclocking borderline just enough PSUs and stock cooling solutions.
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post #7 of 12
Thread Starter 
Quote:
Originally Posted by TickleMeElmo;12592469 
There's a reason that laptops cannot be overclocked aside from the fact that OEMs lock down the BIOS, it has a lot to do with cooling and power considerations the same way that people don't recommend overclocking borderline just enough PSUs and stock cooling solutions.

Cooling/power wouldnt be an issue because it is the same architecture. I guess it is just the BIOS.
post #8 of 12
No, cooling and power is very much an issue. There's a reason it runs at 1.6GHz, it's because that's how fast that chip can run without exceeding its thermal envelope. A 740 can run faster because it's higher quality, it uses less voltage and creates less heat.
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post #9 of 12
Quote:
Originally Posted by 03Saleen;12592802 
Cooling/power wouldnt be an issue because it is the same architecture. I guess it is just the BIOS.

Cooling isnt an issue with my W860CU, not sure with the Dell cooling system. My 740QM is @ 72c max load smile.gif But overclocking should be possible, check notebookreview.com or google for modded bioses smile.gif
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post #10 of 12
Quote:
Originally Posted by 1337LutZ;12592887 
Cooling isnt an issue with my W860CU, not sure with the Dell cooling system. My 740QM is @ 72c max load smile.gif But overclocking should be possible, check notebookreview.com or google for modded bioses smile.gif

Just because you can, doesn't mean you should. Think about it, how much airflow is in a laptop case? If your answer is 'almost none', you're right on. Now, the CPU temperature is not the only thing that you have to look at. Overclocking will also increase the temperatures of the VRM and the chipset, as well as draw more power, and notebook power supplies often have very very little headroom when it comes to their output. It is very not recommended to OC your laptop.
Mk. IV
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Mk. IV
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2x Samsung F3 1TB RAID0, 2x Seagate 7200.11 500GB LG Black 22x Corsair H100 Windows 7 Professional 
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Samsung 46in TV Logitech G19 Corsair AX1200 Corsair 800D 
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