DDR Laptop Memory - Upgrading Your Laptop Successfully Without the Fuss

You've probably landed on this page because you either want to get up to speed with what DDR laptop mind is or you're bang in the deep of experimentation to upgrade your laptop but stuck what to do. Well you know what? You've probably landed on a page that tins help!

A good place to start is an foreword to DDR laptop memory...

Types of DDR laptop memory

DDR stands for Double Data Rate and is an enhanced (faster) mold of SDRAM (Synchronous Dynamic Random Access Memory). Virtually all laptops sold today as well as those sold since circa 2002 use a given (older or newer) version of DDR laptop memory. Put it in plain English DDR memory is faster than standard SDRAM because it tins substitution data on both the falling and rising border of each clock cycle and hence the 'double' in its name. There's absolutely no wisdom you should remember this but just note that if you ever see DDR SDRAM mentioned anywhere, be sure to appreciate this is the exact same thing as plain vanilla DDR.

So agitating on, what types of laptop mind do we have?

DDR laptop memory, otherwise known as DDR1 (though this isn't an clerk name instead referred to as just DDR) or DDR SDRAM is the oldest and slowest. It's predominantly available in function up to 1GB (per module) and at speeds of up to 400MHz (effective).

DDR2 is an evolution to DDR with some internal improvement to boost merit and usually available in function up to 2GB (per module) and speeds up to 1066MHz (effective).

DDR3 is presently the latest example of laptop DDR desire and is yet a further progression of DDR2 boosting expedition a further notch. It tins be found in job up to 4GB (per module) and speeds up to 1600MHz (effective).

Notice that we could have said DDR2 SDRAM just as DDR3 SDRAM. For simplicity sake, staff to remembering that there's DDR, DDR2 and DDR3 because quite frankly this is what you'll encounter most! Luckily, the diligence seems to prefer the shorthand designation convention.

You may also need to discover more about DDR, DDR2 and DDR3 laptop memory.

How do the above types relate to your laptop? This we'll examine next!

What type of DDR laptop mind do I need?

When upgrading laptop intention you need to identify what type of DDR desire is used thus supported by your laptop. Failing to do this will mean a failed upgrade for a very commoner insight - all translation of DDR are incompatible with each other and utility a different type of slit connector, which differs in the tally of pins (and several other technical aspects).

Speaking of desire slit we poverty to introduce recollection modules. In contrast to desktops your laptop uses a smaller mold of desire slit that consumes less space. As a result, the memory subsystem used in laptops are smaller too. You may or may not have heard the assembly DIMM (Dual In-line Memory Module) before, especially if you've upgraded your desktop computer (now is a great time to jog your memory!). Laptops use SO-DIMM's - simply append 'Small Outline' to a DIMM. The name isn't very important except what this condition in practise, namely you cannot install a DIMM in a SO-DIMM intention position and vice versa. DIMM's are considerably longer than SO-DIMM's and are not designed for use in laptops. Before going further we should also kernel out that you may skid upon SO-DIMM written as SODIMM - this is the exact same thing!

So just to recap, we know the different types of DDR, that various versions of DDR don't mix and also that we can't use any DIMM's lying around the house and/or compartment (should you have any) in our laptop. Next we necessity to conclude just what makes of DDR memory we need, specifically what will occupation in our laptop.

A good indicator what makes is right for you is your laptop's age. Laptops produced in the years 2001-2003 will be very likely be DDR based. Laptops produced in the days 2004-2007 evidence be DDR2 and finally, laptop made since 2008 testament be DDR3 (though some use DDR2). Armed with this idiot you'll know whether to buy a DDR SODIMM, DDR2 SODIMM or maybe a DDR3 SODIMM.

A aide period you indispensability to evaluate is the desire comptroller within your laptop. A commoner agency to discovery this out (and be told what makes of DDR is right for us) is to run some diagnostics software on our machine. The truth be told, there are tens and tens of election ways to approach this. We recommend downloading and running CPU-Z, it's entirely free - download CPU-Z here. This simple yet helpful humility testament amongst other direction tell us what sanity our laptop uses therefore supports (remember what we said approx not mixing types of DDR?). Click on the 'Memory' flap and also the 'SPD' tab. There you will find the name DDR, DDR2 or DDR3 followed by various queer looking numbers such as the desire frequency and different timings. You will also find the name that corresponds to the sub-type of DDR laptop recollection used by your laptop - this evidence be something along the lines of PC2-5300, PC3200, PC3-8500 etc. Simply passages the two together (i.e. DDR2 PC2-5300, DDR PC2100, DDR3 PC8-8500) and you'll know what to buy and therefore install.

Find out more roughly DDR, DDR2 and DDR3 SODIMM modules.

We know what memory we need, a logical next step is therefore to decide where to buy it!

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