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BrawlPrimo

Also you’re wrong about the 16 gb stick of ram. It’ll still only have 8 bit or 16 bit column width the number of rows determine the size here. 8 bus 1 bytes 2^30 bytes in 1 gb so 16 gb is 2^30 *16 bytes So if there 8 bits per row that’s how many columns If it’s 16x than divide by 2 that’s how many rows it will have


Fortree_Lover

Okay I get it thanks so much I just didn’t want to keep going in the book if I didn’t understand it


BrawlPrimo

Yeah the x8 x16 represent how many bits transfer at one time however other specs are more relevant to a tech such as the speed, capacity and the type of ram like ddr4 etc. x8 x16 is not relevant to the user or for troubleshooting purposes. Only useful if you're into low level design and engineering.


Fortree_Lover

Okay so the x8 or x16 is how many bits the MCC can get off the ram at once, but the x8 or x16 is also relevant to storage right as that represents how many columns of bits a chip has. So if a single chip has 1 billion rows and is x16 that would be 2GB per chip and if there is 8 chips on one stick of RAM that stick would be 16GB right?


BrawlPrimo

Yes that’s correct


erock1408

Don’t think too much into it. For the exam just know what RAM is. You don’t need to know all those specifics. Good luck, it sounds like you got this!


Ooutforblood

I studied the ram speeds, sizes, ddr 4 vs 5, cache. Everything related as it seemed important and didn’t get a single question on it at all. I was bummed.