Need advise for 16G 2133MHZ Desktop RAM

[hakusama]

Hi Guys

Thanks for your time. I got a HP ENVY 750se Desktop PC. It has 16G RAM. I'm thinking about to add another 16G RAM for playing with openstack. Can anyone give me some advise which brand i should choose.

Details as below:
•16GB DDR4-2133 DIMM (2x8GB) RAM
•2TB 7200 RPM SATA 6G Hard Drive
•500W Power supply
•HP Wireless 802.11 b/g/n 1x1 with Bluetooth M.2 NIC (Sanji)
•4GB Nvidia GeForce GTX 970 [DL DVI-I, HDMI, DP, DP, DP]
•6th Generation Intel(R) Core(TM) i7-6700K processor quad-core [4.0GHz, 8MB Shared Cache]
Estimated ship date:
January 20, 2016 1 $986.99

Thanks,
Xin

 

[Dark Lord of Tech]

Mixing different modules is hit and miss , might run might not , best purchased from the same retail pack.

Even identical memory modules purchased at separate times can be incompatible.

 

[hakusama]

so i have to replace with 4 * 8g ram?

 

[maddogfargo]

Or find an exact match for the kit you currently have installed. RAM is usually labeled with manufacturer, model, voltage and timings. Look up what you have installed and see if you can order more of the same.