Upgrade processor or graphic card

Hello there.  I was wondering whether I could upgrade my processor and graphic card.
Here's my laptop model.
Product Name HP Pavilion 14-n208tx Notebook PC Product Number F7Q12PA Microprocessor 1.8 GHz Intel Core i7-4500U with Intel HD Graphics 4400 Microprocessor Cache 4 MB cache Memory 4 GB 1600 MHz DDR3L SDRAM (1 x 4 GB) Video Graphics NVIDIA GeForce GT 740M (2 GB DDR3 dedicated) Display 14" diagonal HD BrightView LED-backlit (1366 x 768) Hard Drive 1 TB 5400 rpm SATA Multimedia Drive SuperMulti DVD burner Network Card Integrated 10/100 BASE-T Ethernet LAN Wireless Connectivity 802.11b/g/n (1x1) and Bluetooth 4.0 combo Sound DTS Sound+ with 2 speakers Keyboard Full-size island-style Pointing Device Touchpad with multi-touch gesture support PC Card Slots 1 multi-format SD media card reader External Ports
2 USB 3.0
1 HDMI
1 RJ-45
1 headphone/microphone combo
Dimensions 34.7 x 23.9 x 2.25 cm Weight Starting at 2.03 kg Power 65 W AC power adapter
4-cell (41 WHr) Li-ion What's In The Box HP TrueVision HD Webcam (front-facing) with integrated dual array digital microphone
Can I upgrade my gpu from GT 740M to GT840M?

Hi
Manual: http://h10032.www1.hp.com/ctg/Manual/c04439608.pdf
Go through Page 22, motherboard is specific to a processor, the graphics system, the type of dedicated card, pre installed operating system. You cannot replace processor or graphics alone - they are integrated or soldered on to board.
Regards
Visruth
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    YoureInMySpot wrote:
    I've been doing a lot of research lately, to mostly no avail, about whether or not my HP Pavilion dv7-7025dx laptop can have a dedicated GPU added to it, as currently it only has the integrated Intel HD 4000 Mobile graphics card.
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    Hi:
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    As you can see, there are no GPU parts listed in chapter 3, only motherboards, and chapter 4 has no R & R procedures for the GPU.
    I hope this provides the specific information you were requesting.
    Best Regards,
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