Understanding PC Memory - CompTIA A+ 220-901 220-902 Video Training by Prof. Messer
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Most desktops don't come with motherboard documentation, is there a way to find it?
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@mary said in Understanding PC Memory - CompTIA A+ 220-901 220-902 Video Training by Prof. Messer:
Most desktops don't come with motherboard documentation, is there a way to find it?
google is a great friend... (especially just starting out.)
You can also look on the board for the name of the board and the model number to get more information from the manufacturer's website.
What kind of documentation are you looking for ?
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@mary said in Understanding PC Memory - CompTIA A+ 220-901 220-902 Video Training by Prof. Messer:
Most desktops don't come with motherboard documentation, is there a way to find it?
Linux
sudo dmidecode --type 17Windows, I use a little program called CPUID.
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@mary said in Understanding PC Memory - CompTIA A+ 220-901 220-902 Video Training by Prof. Messer:
Most desktops don't come with motherboard documentation, is there a way to find it?
If you are buying a "desktop", then you should get desktop level documentation. Any good one will be fully documented. Most good ones use motherboards you can look up as well, HP tends to use Asus boards, for example.
For purchased desktops, there is very little documentation needed, though, as you really never touch them. Memory is trivial to look up as every desktop vendor and memory vendor has compatibility lists for you.
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What exactly does registered memory do?
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@connorsoliver said in Understanding PC Memory - CompTIA A+ 220-901 220-902 Video Training by Prof. Messer:
What exactly does registered memory do?
Wikipedia has about the best explanation of this. Mostly we ignore this, IT people really don't think about registered vs non-registered memory, that's something bench people worry about or your server vendor, but not IT. CompTIA mentions it because it is a bench exam.
Registered (also called buffered) memory modules have a register between the DRAM modules and the system's memory controller. They place less electrical load on the memory controller and allow single systems to remain stable with more memory modules than they would have otherwise. When compared with registered memory, conventional memory is usually referred to as unbuffered memory or unregistered memory. When manufactured as a dual in-line memory module (DIMM), a registered memory module is called an RDIMM, while unregistered memory is called UDIMM or simply DIMM.
Registered memory is often more expensive because of the lower number of units sold and additional circuitry required, so it is usually found only in applications where the need for scalability and robustness outweighs the need for a low price – for example, registered memory is usually used in servers.
