Once your laptop computer loses oomph, it’s often that the cause is low gadget memory. You’ve likely heard that modern laptop memory enhancements come in the form of a laptop SODIMM, however just what are they, and perhaps most importantly, how can you buy the one right for your laptop? To retailer you confusion, let’s go over the indispensable components you have to recognize before clicking the order button!
What is a laptop computer SODIMM?
A laptop computer SODIMM is the shorthand term for laptop Small Outline Dual Inline Memory Module. Quite a mouthful would not you think? Fortunately, a SODIMM is instead small and is the identify given to the PCB (Printed Circuit Board) on which cutting-edge laptop reminiscence is sold.
Consequently, every time you stumble across a laptop reminiscence upgrade, it’s very possibly to be a laptop SODIMM of some sort. Does this mean all laptop computer SODIMM’s are identical? Unfortunately not, but luck has it that it’s now not as difficult as it sounds.
Laptop SODIMM’s vary relying on what type of memory they feature. Older SDRAM SODIMM’s for example are 144pin, slightly more moderen DDR and DDR2 SODIMM’s are 200pin whilst the currently latest DDR3 SODIMM’s are 204pin. Their physical dimensions additionally differ however ever so slightly.
The major thing to take note is that laptop computer SODIMM’s of various types cannot be combined together in the identical laptop. For example, if your laptop computer makes use of DDR3 reminiscence then there may be no use making an attempt to deploy a DDR2 SODIMM in there. It’s now not only the range of pins that vary however additionally the pin layout, working voltage, timings and addressing etc.
Does this mean upgrading is a burden best left to professionals? Of course not!
Laptop SODIMM compatibility
While it is not possible to combine and healthy SDRAM, DDR, DDR2 or DDR3 SODIMM’s (any combination) collectively it is generally simply satisfactory to mix and match the identical kinds of SODIMM’s together, even if the brand of memory differs. Let’s put this into perspective.
For example, say you have a DDR2 laptop that shipped with a single DDR2 SODIMM. Its potential is fairly an awful lot irrelevant but let’s assumes its 2GB. You now prefer to improve to 4GB however the DDR2 laptop reminiscence upgrade you purchased is of a exceptional manufacturer than the one presently established (i.e. Samsung Vs Hynix). Will this work? In 99% of instances yes! You see, the company is for most section a non-issue, what’s relevant then again is that both modules are DDR2 as a result observe the DDR2 SODIMM specification.
Even if the memory timings range between the modules then this is additionally perfect (unless you want each ounce of performance you can get). The solely component you have to pay attention to when buying is the reminiscence speed. For example, if that cutting-edge 2GB RAM is of the PC2-5300 (667MHz effective) variety, you want to make positive your new DDR2 laptop computer SODIMM is also at least PC2-5300, otherwise the reminiscence controller inside your laptop will be pressured to run each SODIMM’s at the pace of the lesser (i.e. slower) SODIMM. To extrapolate this further, PC2-5300 and PC2-6400 DDR SODIMM modules will work collectively albeit at 667MHz and not 800MHz (effective).
So why will mixing specific brands of laptop computer SODIMM’s only work in 99% of cases. The short answer is incompatibility. The long answer is as follows, some lesser manufacturers of laptop memory do no longer always 100% comply with the JDEC (the business enterprise what devises memory specifications) specification, at other times BIOS’s (Basic Input Out System) determined in laptops are not without bugs. The internet result is a laptop that will continuously beep when turned on while displaying a black screen.
Is there a way to upgrade barring doubtlessly facing any such problems and diminishing performance? Nothing will one hundred percent warranty you get away from laptop SODIMM incompatibility issues, after all it is you who clicks the order button, alternatively as long as you stick to some key pointers then we’re nearly certain you will be smiling in no time at all.
Upgrading laptop SODIMM’s – key recommendations to consider prior to buying
We’ve compiled the beneath shortlist of components you should pay attention to when seeking to purchase a laptop SODIMM. For peace of thought we advocate that you:
A) Where possible strive and purchase the same company of reminiscence to what you already have hooked up OR purchase a laptop memory upgrade from a respected brand
B) Buy the equal pace of memory to what’s currently installed, i.e. if PC2-5300 is set up then buy a PC2-5300 laptop computer SODIMM as it’s very rare that the reminiscence controller in your laptop computer can run at a greater memory spec, and even if it can, the currently installed slower memory will prevent this (unless you trade all SODIMM’s to the new quicker spec)
C) Where financially viable to do so, continually strive and purchase SODIMM’s of the same potential to what you presently have set up (see below as to why)
D) If the laptop memory improve you design to buy would not function a lifetime warranty then it’s pleasant to keep away from it altogether, revered memory manufacturers offer lifetime warranties due to the fact they consider in their products, so ought to you (for peace of mind)
E) Simply purchase mainstream laptop computer SODIMM’s rather than overall performance laptop SODIMM’s. The latter will feature faster reminiscence timings, which offer a modest performance boost. For them to run at these timings on the other hand all set up reminiscence modules need to meet this spec. As your presently hooked up laptop computer will probable function rather slower timings, your laptop’s BIOS will use these, and now not the quicker timings.
Laptop SODIMM twin channel mode
The great majority of contemporary laptops guide what is acknowledged as dual channel mode. In practise, this skill two laptop computer SODIMM’s are accessed in parallel for more advantageous overall performance (bandwidth).
When dual channel mode was once added (in DDR reminiscence laptops) it solely operated in what’s known as synchronous mode. Newer DDR2 and DDR3 reminiscence laptop computer guide both synchronous and asynchronous mode.
Synchronous mode solely works when two equal SODIMM’s are installed. In this case identical also extends to suggest two modules of the same capacity, for example, 2x 512MB = 1GB.
Asynchronous mode on the other hand only works when two non-identical SODIMM’s are installed, non-identical in the feel that they differ in capacity, for instance 1x 1GB and 1x2GB = 3GB.
Regardless whether or not you have an older DDR reminiscence laptop or newer DDR2 or DDR3 laptop, always attempt and install SODIMM’s of the identical capacity. Doing so will make sure your memory (where your laptop computer helps twin channel mode) runs in synchronous mode.
If you have a DDR2 or newer laptop that supports dual channel mode and deploy non-identical capacity SODIMM’s, this will force asynchronous mode. In such situation, only section of your reminiscence will operate in twin channel mode, the other part will run in single channel mode.
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