Another way to check you motherboard :
1. Open up your case.
2. Look closely on your motherboard find some text other than parts name (ex: SATAII, PCI-Express, etc...) that looks like some product code.
3. Google for it.
From what i know, Samsung is the name of lot of GPU memory (GDDR). Just like hobbes_fan say, it also makes memory. And, just for your information even there's a memory with this brand : Hyundai.
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