September 18, 2013

Today we learned lots about different types of RAM.

-RAM---> MCC---> CPU.
-MCC (Memory Controlling Chip)
-The occurances of the MCC occurs on the address bus.
-Different CPU's have a differnet number of wires.
-20 wire= 1MB.
-Originally the CPU had a 1bit wide but DRAM 8bit wide.
-Multiples of DRAM chips =stick module DRAM X4, X8, X16.

As well as DDR2 and DDR3



-Fast.
-Less Power.
-Clock Doubling.
-Cache.
-Desktop 240 pins, Laptop 200 pins SO-DDR2.
-Not elecetronically compatible.

-Higher speed.
-More Eff.
-30% less power.
-Desktop 240 pins, Laptop 204 pins.
-Doubled the buffer to 408bits.
-XMP (Extended memory profile)
-Quad-druples the clock speed.
-PC3     6400, 8500, 10667, 12800, 14900, 17000
-CS(MHz) 1333,
-TR(MB/s)

We then got some hands on, on taking out the RAM and putting it back in and making sure the Comp works. Then seeing how much RAM is there.