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June 16th, 2015 19:00
Dell Inspiron 7520 cpu upgrade
Hi all! I want to upgrade my actual cpu(i5 3210m) to a better.
It has hm77 chipset and g2 socket and theorically It should be upgradable to a powerful cpu as a core i7 3630qm for examples.
However actual cpu wattage is 35w instead of i7's(45w) besides I read that Bios should not recognize a New cpu..
Anyhow I read that exist a CPUs compatibility list for any laptop model,
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fedeghela
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June 17th, 2015 02:00
Someone can help me giving that info?
Thanks ;)
ejn63
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June 17th, 2015 03:00
The i7-3612QM was shipped with that model and should work. It's a 35W CPU, so it should do fine.
I would NOT install a 45W CPU in that model -- 10W is quite a bit more power draw and will throw off a lot more heat -- and will also significantly reduce the battery runtimes.
fedeghela
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June 17th, 2015 04:00
Thanks for the advice! In case of 45w cpu taking note of warnings you showed me(eventually I could buy a good heatsink to remedy the high temperatures and battery isn't a big problem for me)the laptop system can work without further failure?
ejn63
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June 17th, 2015 05:00
Unlike desktop systems, notebooks are built with proprietary heatsinks -- only the original will fit. In a system designed for a 35W or less CPU, installing a 45W CPU will result in overheating, system instability (up to and including shutdowns) and reduced internal component life.
The other thing to consider: CPU upgrades don't produce major speed improvements in many cases. If the system is still running a conventional or hybrid hard drive, replacing that with a full solid state drive will produce a much more noticeable overall performance impact --- and will cost less than a CPU upgrade in many cases.
ejn63
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June 17th, 2015 07:00
There's no way to fit other than the original heatsink into the system - unlike desktops, notebooks use highly proprietary heatsink assemblies. Nothing else will fit.
Installing a 45W CPU in a system designed for a maximum of a 35W unit is a recipe for system instability, overheating and early component failure.