I have Hp 15-d107tx notebook pc. It have 4GB of ram and I want to upgrade it to 8GB but i don't know how much my laptop support. I checked inside my laptop, It have 2 slots for RAM and elpida 4gb 1rx8 pc3l-12800s-11-12-b4 This RAM is installed in my laptop.

  • yes you can use any company. But make sure Speed and DDR3L is there. – Techie Gossip Jul 14 '17 at 6:43

You can use another 4GB with same. Only Make sure its 4GB DDR3L (L indicates Low voltage RAM).

Try to purchase same speed of 1280MHZ. Max Speed it support is 1600MHZ.

  • which one should i buy 1280Mhz or 1600Mhz? – Rohit Chopra Jul 13 '17 at 10:24
  • and also SODIMM OR DIMM? – Rohit Chopra Jul 13 '17 at 10:32
  • Get the same Mhz of the existing one. – vembutech Jul 13 '17 at 10:36
  • 1600Mhz supports your Laptop as official site. SODIMM – Techie Gossip Jul 13 '17 at 10:37
  • i cannot find 1280Mhz ram. – Rohit Chopra Jul 13 '17 at 10:51

If you have two slots, and one slot has a 4GB RAM module in it, then the other will accept 4GB as well. However, you want to know if it can accept 8GB per module or even more. The HP specs page doesn't give much info, doesn't tell the maximum allowed amount of RAM. The following page says it can work with 16GB total, so two modules of 8GB RAM.


This one says 16GB as well:


This means that it will probably work with one 4GB and one 8GB module, so 12GB total. Having two identical modules will probably speed things up, so if 8GB is enough, that is cheaper and faster.

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