Upgrading my laptopís CPU?  


  1. Posts : 20
    Linux, Windows 10, Android
       #1

    Upgrading my laptopís CPU?


    Hi, my laptop has an i5-4210H (2 cores, 4 threads @ 2.9GHz) and Iím thinking of replacing it with an i7-4720HQ (4 cores, 8 threads @ 2.6GHz).

    Will that work - I think Access denied indicates it should?

    Would replacing the CPU be a relatively easy task to do?

    Any help appreciated.
      My Computer


  2. Posts : 5,875
    Win 11 Pro (x64) 22H2
       #2

    Laptop CPU's aren't meant to be upgraded, and certainly not by consumers. Can it be done? There are videos saying it can be done. How effective and easy is another matter.

    Good luck.
      My Computers


  3. Posts : 1,807
    Windows 10 Pro 21H1 19043.1348
       #3

    I re-pasted the cpu on an old Dell Studio 1747 (circa 2008) a few years ago. Although I was able to download what I believed to be a complete OEM service manual, it was a serious PITA.

    A long story short is that in order to complete the task it was necessary to completely disassemble the entire case including the upper section with the display, the keyboard, motherboard, and remove countless other modules.

    Most of the screws in my Dell were the same size just different lengths. I completed it section by section leaving all the screws loose on a work felt but oriented in the mounting pattern. I still managed to bugger up some of the placements.

    If you've ever worked on the electronics of a newer vehicle, it pales in comparison to the grief created by micro-assemblies and endless miniature connectors and jumpers throughout a laptop. I should mention I was once employed as an electronic assembler and this task wasn't much fun.

    Another treat was the layout of the service manual. I printed most of it because you would have to complete disassembly of one tiny section and it would then refer to another chapter to continue. Basically I had 8 to 10 chapters to follow and then if I recall correctly there wasn't a reassembly task, it was just reverse everything you just completed by following the disassembly procedure backwards.

    With the cost of PC's these days, unless you're hard up for cash or truly feeling like an adventure in aggravation, I'd buy new or pre-enjoyed before trying that again. And yes, all this was simply to re-paste the cpu. Unbelievable!
      My Computer


  4. Posts : 1,254
    Windows 10 Pro
       #4

    The i5-4210H CPU uses the FCBGA1364 "socket" which isn't really a socket at all. The CPU is soldered directly to the motherboard. This is quite common in Laptops. It is cheaper and has some technical advantages. Replacement of these devices requires special equipment and a high skill level. Not practical.

    The linked to article shows that the CPUs are similar and with the same "socket". This doesn't mean they are compatible.
      My Computer


  5. Posts : 2,540
    Windows 10
       #5

    You would not gain anything worthwhile, assuming it is compatible, just not worth the effort and it is not a task a consumer can do.
    I can do simple soldering jobs but not on Laptop MOBOs. The micro sized components and precision required needs a lot of expertise.
      My Computer


  6. Posts : 846
    Windows 10 LTSC
       #6

    Laptop CPUs these days are now soldered on the motherboard, so it's really not worth the time.
      My Computer


  7. Posts : 20
    Linux, Windows 10, Android
    Thread Starter
       #7

    I really appreciate all the great advice and I won't be going to try that idea!

    It has saved me a waste of time and probably sanity!

    Cheers!
      My Computer


  8. Posts : 4,594
    Windows 10 Pro
       #8

    Ya, as stated, you do not upgrade laptop CPU`s, you simply buy the laptop with the CPU you want in it.
      My Computers


  9. Posts : 1,807
    Windows 10 Pro 21H1 19043.1348
       #9

    mystokie said:
    I really appreciate all the great advice and I won't be going to try that idea!
    It has saved me a waste of time and probably sanity!
    Cheers!

    I believe you have made a wise choice. If you want a large performance upgrade consider adding an SSD. My old Dell with a first gen i7 was incredibly slow even with the 7200 rpm HDD. I added a Kingston SSD and now the thing boots in seconds instead of minutes.

    Robot Check
      My Computer


 

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