Can I upgrade RAM in laptop with two different brand?

Sarvajit936

Prominent
Jun 17, 2017
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Hi guys,
I have lenovo thinkpad P51 ( mobile workstation) inbuilt there is 8 gb ddr4 2400mhz samsung ram and I want to add more 8 gb but brand is different. I want to add more 8gb ddr4 2400mhz but brand is Adata company. I have question that does it slow down my laptop if I add same ram but different brand, does it affect laptop performance down or increase? Guys pls ans me...
Thanks