Wednesday, March 19, 2014

Allegrasakram DDR laptop memory

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Forms of DDR laptop memory

DDR means Double Data Rate and can be an enhanced (faster) type of SDRAM (Synchronous Dynamic Random Access Memory). Practically all laptops sold today along with those sold since circa 2002 work with a given (older or newer) version of DDR laptop memory. Put it in plain English DDR memory is faster than standard SDRAM since it can transfer data on both falling and rising edge of every clock cycle and therefore the 'double' in its name. There is no reason you need to remember this but just remember that should anyone ever see DDR SDRAM mentioned anywhere, make sure to appreciate this is actually the identical thing as plain vanilla DDR.

So shifting, what forms of laptop memory do we've?

DDR laptop memory,

Notice that we're able to have said DDR2 SDRAM as DDR3 SDRAM just. For simplicity sake, adhere to remembering that there surely is DDR, luckily, the seems to choose the shorthand naming convention.

How do the aforementioned types relate with your laptop?

Which kind of DDR laptop memory do I want?

When upgrading laptop memory you should identify which kind of DDR memory can be used thus supported by your laptop. Failing to get this done will mean a failed upgrade for a very simple reason - all versions of DDR are incompatible with each other and use a different type of slot connector, which differs in the number of pins (and several other technical aspects).

Speaking of memory slots we need to introduce memory modules. As a result, the memory modules used in laptops are smaller too. especially if you've upgraded your desktop computer (now is a great time to jog your memory!). The name isn't very important except what this means in practise, namely you cannot install a DIMM in a SO-DIMM memory slot and vice versa. DIMM's are considerably longer than SO-DIMM's and are not designed for use in laptops.

So just to recap, we know the different types of DDR, next we need to conclude just what type of DDR memory we need, specifically what will work in our laptop.

A good indicator what type is right for you personally can be your laptop's age. Laptops stated in the years 2001-2003 will undoubtedly be very be DDR based likely. Laptops stated in the entire years 2004-2007 will undoubtedly be DDR2 and lastly, laptop made since 2008 will undoubtedly be DDR3 (while some use DDR2). Armed with this particular information you'll know whether to get a DDR SODIMM, DDR2 SODIMM or perhaps a DDR3 SODIMM maybe.

Another aspect you should evaluate may be the memory controller inside your laptop. The reality be told, this simple yet helpful application will amongst other aspects reveal what memory our laptop uses therefore supports (remember what we said about not mixing forms of DDR?). Go through the 'Memory' tab as well as the 'SPD' tab. PC3200, simply piece both together (i. DDR2 PC2-5300, dDR3 PC8-8500) and you will know what to get and for that reason install.

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