Upgrading Laptop Processor

[Nizar Hawamdeh]

i have a Lenovo Z40-70 with Intel i7 4510U processor, can i upgrade this processor to 4 core processor ?
i looked for the answer in Lenovo's website and i couldn't find anything
experts please check this for me

 

[Wayfur]

If you're comfortable opening your laptop, do so and see if your CPU is interchangeable. Laptops usually don't leave much customisability. Just don't damage your laptop

Hardware maintenance guide: http://www.manualowl.com/m/Lenovo/Z40-70/Manual/427309

 

[AdviserKulikov]

I wouldn't advise it, the motherboards are custom and poorly documented. You currently have within 5% of the speed of the top BGA1168 socket CPU.

The CPU may be soldered to the board directly, which can complicate matters more than just the fact that the board may already be maxed out as you have the highest end CPU available on that line of laptops.

You will need to upgrade to a Broadwell laptop if you want something you can play unplugged, or step up to a much higher energy consumption CPU.

 

[boosted1g]

Many laptops now days solder the cpu directly to the board instead of a socket to save on both cost and to get an extra 1/8 an inch thinner.

IF your cpu is not soldered you will be limited to the select few cpu's the motherboard bios supports which is not going to be well documented.

If you had a Pentium chip I would see the argument in trying, but since you already have an i7 you really have very little to gain in the upgrade.

 

[americanbrian]

That CPU is not socketed so no, not possible with that model.

 

[Nizar Hawamdeh]

That CPU is not socketed so no, not possible with that model.

how could you know that this cpu is not socketed , where i can find such an info ? ?

 

[Nizar Hawamdeh]

Many laptops now days solder the cpu directly to the board instead of a socket to save on both cost and to get an extra 1/8 an inch thinner.

IF your cpu is not soldered you will be limited to the select few cpu's the motherboard bios supports which is not going to be well documented.

If you had a Pentium chip I would see the argument in trying, but since you already have an i7 you really have very little to gain in the upgrade.

you think upgrading gain from dual core i7 to quad core one is not worth trying ?

 

[AdviserKulikov]

you think upgrading gain from dual core i7 to quad core one is not worth trying ?

It's not worth trying, it's impossible to do. There are no quad core processors on the BGA1168 socket.

Laptops are VERY specialized, they do not leave anything with wiggle room because of the space they have to cram all the parts into.

Here is a list of some things that can go wrong with the current proposed replacement.

1: The CPU is soldered to the motherboard, it would take a very skilled hand to properly detach, clean and reattach a new CPU. (We know this because it does not list the CPU as a part in the manual, it and the motherboard are a single package)

2: The best upgrade possible on that socket is a 20% more powerful CPU (i7-4578U), this CPU draws more power than your Current CPU and the motherboard might not support voltages high enough to run this new CPU.

3: The power supply might not be rated to provide enough wattage to the CPU

4: Your motherboard might not have the ability to support the GPU on the new CPU, as it is of a different tech generation.

5: I don't think the included CPU cooling system is capable of handling double the heat output.


Everybody in this thread who looked at the specs for your laptop agrees that it isn't a good idea, especially for a 20% performance increase. (The upgrade CPU is listed costing more than the laptop you would be putting it into)