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This is an instructional video on how to replace the RAM memory for your Asus x453M. It is particularly hard to get to the RAM inside your Asus x453M however this can be done with a little patience. You don't need to go to the shop and pay for an expensive service.
I brought my 8GB RAM module from OFFTEK:
https://www.offtek.co.uk/asus/laptop-memory-upgrades/x-series/x553ma-ram
I brought my precision multi-bit screw driver set from ACENIX:
http://www.amazon.co.uk/dp/B00HBXL4F4...
Here are step-by-step instructions:
1) Turn laptop with the back facing up
2) Unscrew all the screws
note: screws at the top are longer
3) Turn laptop around
4) Using a plastic object carefully separate keyboard from casing
note: I used an expired credit card to not cause any damage
5) Carefully disconnect the two wires connecting the keyboard
6) Remove the keyboard
7) Touch your hand on some metal to remove static from your hand before touching any circuit board
8) Disconnect battery
9) Unscrew and remove battery
10) Disconnect sound board and fan cables
11) Unscrew and remove hard drive
12) Carefully disconnect wireless card cable
13) Unscrew motherboard
14) Carefully lift motherboard to get to the RAM module
note: leave the monitor connected
note: the wireless card will fall out of the socket due to poor design
15) Replace RAM module with new RAM module
note: make sure RAM is properly connected
16) Place wireless card back in socket and carefully place motherboard back in original position
17) Assemble laptop back together
note: don't forget to re-connect wireless card cable, sound card and fan cables
Enjoy a faster laptop!