Ram upgarde on HP 15g-br105tx

[Osborne0]

I checked in the command prompt that my laptop (HP 15g-br105tx) has DDR4 ram:

Capacity=8GB

Manufacturer=SK Hynix

Part Number=HMA81GS6AFR8N-UH

Speed=2400

Is this RAM shown in Screenshot going to work on my laptop? Will it work on dual channels? 

If not which ram will support on my laptop? Can I use Crucial Ram with it?

[Paul_Tikkanen]

Hi:

The Hynix memory should work, but I can't 100% guarantee it.

The Crucial memory should work too but I would get the DDR4 2666 MHz chip since the DDR4-2400 chip is ridiculously expensive.  The faster speed memory will automatically bridge to 2400 MHz.

Crucial 8GB DDR4-2666 SODIMM | CT8G4SFRA266 | Crucial IN

Crucial 8GB DDR4-2400 SODIMM | CT8G4SFS824A | Crucial IN

Below is the link to the service manual, where you can find the memory removal and replacement procedure.

HP 15 Laptop PC (Intel)HP 15g Laptop PCHP 15q Laptop PC Maintenance and Service Guide

[Osborne0]

If I use Crucial memory, will it work on dual channel?

And as shown in the screenshot, part number (HMA81GS6AFR8N-UH) of both the ram are same. As part number are same, then why it is not guaranteed that it will work?

[Paul_Tikkanen · Accepted solution]

I didn't notice the part numbers were the same.

Of course, if the part numbers match, that would be your best option.

As long as you install another 8 GB memory chip in the empty slot, it will run in dual channel mode.

Memory has to be installed in matching capacities (2 x 4 GB, 2 x 8 GB...) in order for it to run in dual channel mode.