Goutam45 :
dynet 4GB RAM costs around only 2.1k. its just worth for price
Not always. If hynix is OEM and Dynet is third party, then such low price RAM may be a problem.
Did you know that the RAM chips(black chips you find on RAMs) undergo rigorous testing before getting installed?
The manufacturer of these RAM chips sets some standards. The chips that don't meet these standards are just thrown away.
However, other companies offer to buy some of these chips for say 50% or 10% of the price of a standard chip.
Then they install the chips on their own modules and sell them under a different label. They know that the chips are bad quality.
The worst that can happen is that some modules come back to be defective, they ship a similar module(they can afford to, as these companies charge a hefty premium over their own cost price, and since that is very low, you have modules that are cheaper than standard units).
The difference here is that the standard chips work 99.9% of the time, whereas the non-standard ones work only say 90 or 95% of the time, and may also have problems like memory errors.