Hi and welcome to the county. A plus 2 to 0 dash ones. Those are one module two.
This lesson lesson 2.4 motherboard and RAM slots. We're gonna have a brief overview of the motherboard RAM slots in the motherboard. Memory modules. I'm your structure, Bill Price. Okay, in today's lesson, we're going to talk about dim the duel in line memory marshals.
Then we're gonna talk about another form of memory modules
so dim with small outline in line memory modules. And finally, we're gonna wrap up talking about the micro dim, the small factor memory.
So in the dim, the duel in line memory modules. First of all, let's talk about memory. Memory is an important part of your computer, one of the most important parts.
No matter what you're doing on the computer, whether the applications you're using, it could be a document. It could be a program. It could be spreadsheets. All of that information is stored and executed in the memory of your computer.
There's a lot of communication going on back and forth between the memory in your system, and the CPU is so dealing with this back and forth. Speed is very important when it comes to the memory of your system. Now a common memory type found especially in PCs. Workstations of service
is the deal modules dim. The duel on
inline memory module is a series of dynamic random access memory circuits that are integrated. These modules are mounted on a printed circuit board and designed for use in like a seven peces. Workstations and servers now dims have separate electrical contacts on each side of the module, but they're not connected.
Each side is individual from the other.
Dims also have a 64 bit data bus path
since Intel's owner processors. Before the dams came out, there was the Sims. One fall back with the SIM modules was they had to be installed in parallel to fill up or toe adequately fit the data bus path. And that's with one of the reasons why Dims came out on board.
Now the memory bus off the computer eyes the size of the communication path between the memory and the CPU.
Now the dams come in on a very our variety of different sizes.
Let's have a look at those sizes that they come in now. The DDR, which is one of the older ones and the first ones out on the scene as 184 pants,
followed by the DDR two and DDR three. Both of these had 240 pans, followed by DDR four at 288 p. M.
And as you would notice that if you line these mountains up, they have different notches. These notches are unique to the type of memory or the DVR model that they were, and this was made for reasons so you wouldn't be able to cross, install or
install a memory module in a board that was not,
um, supported by that particular module. Now, if you look at the first with the DDR, you'll see the notches right here and we'll go to the d d r to the notches moving over more toward the left here on this side and on the DDR three. It's even back further this way
and on the DDR four. It's moving back this way. So again, all of these you can see the different
placement of the notches.
So let's talk about the so *** the small outline duel in line memory modules as devices get faster and technology advances, devices and computers are getting smaller now. This small outlined duel in line memory module or the sodium are made for mobile devices
as yet they are smaller than the traditional dams
in the sodium is. We have the sodium DDR 200 peons, followed by the sodium DDR at 240 pins,
followed by the sodium DDR, three at 204 peons and the sodium DDR four at 260 pans. And as with the dims, if you line these modules up, you can see that the not just fall in different places as well.
And finally we have the micro Dem E for even a smaller form factor of mobile devices. The Micro Dem came in to variance. We have two DDR 472 pins and the DDR two at 214 peons again.
These were made for smaller form factor mobile devices.
So we took a brief overview and looked at the dim the duel in line memory modules the so dim,
the small outlined in line memory modules and the micro *** the small form factor memory modules And again we're going to go into a little bit more in detail in the later lesson, talking about the ram, the different types of Ram
and knowing which ram to install in which motherboards. So that is all for this lesson. I will see you in a later lesson.