The Notebook Review forums were hosted by TechTarget, who shut down them down on January 31, 2022. This static read-only archive was pulled by NBR forum users between January 20 and January 31, 2022, in an effort to make sure that the valuable technical information that had been posted on the forums is preserved. For current discussions, many NBR forum users moved over to NotebookTalk.net after the shutdown.
Problems? See this thread at archive.org.

    CPU Upgrade (Lenovo T440p)

    Discussion in 'Lenovo' started by Srob89, Jan 8, 2015.

  1. Srob89

    Srob89 Newbie

    Reputations:
    0
    Messages:
    3
    Likes Received:
    0
    Trophy Points:
    5
    I'm trying to max the processor on my T440p.

    1. Is the processor below one of the fastest processors available/compatible with the T440p? This doesn’t look like the system board, rather only the CPU.

    Intel Core i7-4900MQ 2.8GHz 8MB L3 Cache 47W Quad-Core Mobile Processor Model BX80647I74900MQ

    Possible vendor: http://www.avadirect.com/Core-i7-49...T-HT-vPro-VT-d-VT-x-XD-Retail/Product/7674198


    2. What are the steps upgrading the CPU? Can I do this without having to replace the entire system board? I don’t see that option in the documentation: http://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles_pdf/t440p_hmm_en_sp40a25467.pdf

    Thanks in advance for any help.
     
    Srob89, Jan 8, 2015
    #1
  2. ZaZ

    ZaZ Super Model Super Moderator

    Reputations:
    4,982
    Messages:
    34,001
    Likes Received:
    1,418
    Trophy Points:
    581
    The T series have in the past used socketed CPUs, so you should be able to swap them without replacing the motherboard, but I haven't seen one myself. That seems like a lot of money to spend for only a slight performance increase over a 4700Q.
     
    ZaZ, Jan 8, 2015
    #2
  3. Faruk

    Faruk Notebook Evangelist

    Reputations:
    36
    Messages:
    416
    Likes Received:
    15
    Trophy Points:
    31
    Why don't you wait and see if any Broadwell CPUs come out in a PGA package. They should be drop-in compatible, but would require a BIOS update or mod.
     
    Faruk, Jan 8, 2015
    #3
  4. Incontro

    Incontro Notebook Evangelist

    Reputations:
    21
    Messages:
    369
    Likes Received:
    44
    Trophy Points:
    41
    That won't happen. Broadwell will be BGA only for the entire mobile range.
     
    Incontro, Jan 8, 2015
    #4
  5. Srob89

    Srob89 Newbie

    Reputations:
    0
    Messages:
    3
    Likes Received:
    0
    Trophy Points:
    5
    Thanks for the reply. I opened it up and was able to remove the CPU. I should be just able to buy the CPU and swap it, correct?

    Also, it's FRU 04X4051 which is an i5-4300M. Do you think there'd be a significant difference between that and an i7-4900MQ?
     
    Srob89, Jan 8, 2015
    #5
  6. ajkula66

    ajkula66 Courage and Consequence

    Reputations:
    3,018
    Messages:
    3,198
    Likes Received:
    2,318
    Trophy Points:
    231
    ajkula66, Jan 8, 2015
    #6
  7. ZaZ

    ZaZ Super Model Super Moderator

    Reputations:
    4,982
    Messages:
    34,001
    Likes Received:
    1,418
    Trophy Points:
    581
    Of course you can get the 4700MQ for less than half that here and the chances you'd notice a difference between the two are very low.
     
    ZaZ, Jan 9, 2015
    #7
  8. Incontro

    Incontro Notebook Evangelist

    Reputations:
    21
    Messages:
    369
    Likes Received:
    44
    Trophy Points:
    41
    Passmark says 4900MQ scores 17% higher over 4700MQ. Also, 4900MQ overclocks much higher (+600Mhz max OC = 4.2Ghz 4 core), and has more cache too. 4700MQ can only overclock by max +200Mhz = 3.4Ghz 4 core. Remember that even +200 Mhz makes a noticeable difference with Haswell architecture.

    Of course either of these are a huge upgrade to the i5 OP has, but just something to keep in mind.

    (Disclaimer: During daily use the difference won't be noticeable, but if OP has heavy workloads it might matter.)
     
    Incontro, Jan 9, 2015
    #8