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If you dont agree with the above terms please do not buy the item. |
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RAM BUYING GUIDE
Random Access memory (RAM) is the main memory of a PC where every thing is loaded before it can be processed. Everybody knows there are lots of processes running in the background than it appears. Applications nowadays are resource hungry, they demand like anything. So, your 1yr old PC will not win the battle with stone age tools. Either you upgrade core components or buy a new one. Buying a new PC is not feasible every time, so considerable performance gain can be achieved by addition of more RAM on every PC whose other components are not bottlenecking the system.
Type & Clock of RAM : First of all you need to know what type of RAM (SD, DDR, DDR2, DDR3) your motherboard supports. Now it is time for you to decide how fast RAM you want and how fast your motherboard can support. Yes, I am talking of the bandwidth they can offer. You might have seen RAM sticks as DDR2 800Mhz, DDR3 1333Mhz, DDR3 1600Mhz etc. This clock (mhz) is your bandwidth factor. The more, the better. To know either look at the manual provided with your motherboard or do a little search on google with your motherboard model number. Now you are ready with what type and mhz of RAM you want.
Latency is the time delay only after which the data can be accessed in the RAM. So the less,the better. No need to go into the details of latency because low latency rams are 30% to 100% more costlier than high latency RAM. So you need not consider such details while buying RAM for your desktop PC. Just go for branded names like Corsair. They tend to perform better than others. If you tend to go deeper in the latency stuff, I recommend this link.
Dual Channel is like you are running two identical sticks in combined mode, doubling the data transfer rate. This feature needs to be supported by the motherboard. Just insert two identical sticks in same colored module and its done. If you want good performance, go for matched pairs that specially come in a single packaging specially for dual channel performance. They are little expensive from normal RAM sticks but worth it.
Triple Channel is like you are running three identical sticks in combined mode, triple the data transfer rate. This is new feature from Intel check your motherobards regarding this.
Note :
When running two sticks, the whole system will run at the lower clock out of the two supported. For example : 1 DDR2 533Mhz and 1 DDR2 667Mhz will run @ 533mhz if run together. i.e. One will underclock itself
Never try any incompatible stick in your motherboard. Although they might run well in some case but they can also smoke up your cabinet. For example: If your motherboard supports DDR2 upto 667mhz, don’t try the 800mhz stick. Even if it runs then also it will underclock itself to 667mhz. So it will cost more and will give no performance gain. (Don’t go with the vendor)
Buying RAM running greater than FSB is pointless. FSB is how fast data can be transferred between processor and RAM. There is no point of buying a 667mhz stick if your processor has a FSB of 533Mhz.
How Much Is Enough?
The rule of thumb that I use for all computer systems for determining if it has enough memory is to look at the requirements of the software you intend to run. Pick up the boxes for each of the applications and the OS that you intend to run and look at both the minimum and recommended requirements. Typically you want to have more RAM than the highest minimum and ideally at least as much as the highest listed recommended requirement. The following chart provides a general idea of how a system will run with various amounts of memory:
Minimum Functionality: 2GB
Minimum: 4GB
Optimal: 8GB
Smooth Sailing: 12GB or more
The ranges provided are a generalization based upon most common computing tasks. It is best to check the requirements of the intended software to make the final decisions. This is not accurate for all computer tasks because some operating systems use more memory than others.
Note: If you inted to use more than 4GB of memory on a Windows based system, you must have a 64-bit operating system to get past the 4GB barrier. More information can be found in my Vista an 4GB of RAM article. This also applies to Windows 7 OS versions.
Memory Expansion
One other thing that you might want to consider is how much memory the system can support. Most desktop systems tend to have a total of four to six memory slots on the boards with modules installed in pairs. There are some boards that install in threes for improved performance but Intel has moved away from that design. Smaller form factor systems typically will only have a two or three RAM slots. The way these slots are used can play a key role in how you can upgrade memory in the future.
For example, a system may come with 4GB of memory. With four memory slots, this memory amount can be installed with either two 2GB memory modules or four 1GB modules. If you are looking at future memory upgrades, it is better to purchase a system using two 2GB modules as there is available slots for upgrades without having to remove modules and RAM to increase the overall amount. |
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