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Thread: How To Select Pc Componets

  1. #1
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    How To Select Pc Componets

    hi frnds...this topic helps the people who r to buy a new system....


     



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    How to Select CPU

    Choice: In the current market you have seven main categories of Processors to choose for your desktop computes: Xeon, Pentium IV LGA775 (506&630), Pentium IV, Celeron D, Opteron, Athlon and Sempron.


    Pentium 4 Socket 478 vs Celeron Socket 478: Performance wise Pentium 4 is up to 25-30% faster compared to an equal speeded Celeron. Celeron Socket 478 is best used where budgets are extremely tight but Intel is a requirement.

    Pentium 4 Processor 506 vs Pentium 4 Processor 630 vs Celeron D: All the Processors are 64 bit technology. Pentium 4 Processor 506 based upon 90nm process technology have 1MB L2 Advanced Transfer Cache, 16KB L1 Data Cache and Stream Side Exception 3SSE, these applications include Internet Audio and Streaming Video Image, Processing Video Content Creation, Speech 3D, CAD, Games, Multimedia and Multitasking User Environments. Pentium 4 Processor 630 is with Hyper Threading Technology, has 2MB L2 cache and advanced technologies to improve system utilization. The cache allows the processor to preload data, which provides faster access to it. The more cache the processor supports, the more information the processor can get to quickly. Combined with Hyper-Threading Technology you can do simultaneous computing with grater system responsiveness. Hyper-Threading Technology help maximize the efficiency of the processor by allowing the processor to complete more tasks in a given amount of time so you can play a game or engage in e-Commerce while running a virus scan in the background without slowing down the system.

    Benefits: Gaming, Multimedia Creator, Internet Classrooms and Office Productivity.

    Celeron D Processor is with 256KB L2 cache is not good for Gaming and 3D Computing. If all you plan to use computer for word processing, e-mail and surfing the web, Celeron is a very economic choice. That’s often the case for most office applications. However, if you want to use your computer for Games and high-end computing, Pentium 4 with more cache would be a better choice. This sounds just the opposite of what Intel has been trying to market their product.

    Bus Speeds / Front Side Bus: The bus speed is a very important aspect of your processor choice. Generally: The higher the better when you are talking about like processors. Front Side Bus speed affects your performance level.

    AMD now vs AMD’s past: AMD processors have gained popularity in the last couple of years, mainly as a result of the success of Athlon. Their price, speed, and 3D performance are very attractive for people who don’t care about the name of a product but the contents. Historically, AMD gained their first converts among technically oriented people who like to venture into something new and different. The business world is taking a longer time to accept them, partially due to inertia and image problems. AMD is now leading in the to-speed performance for PC and has won many benchmarking tests.

    Athlon 64 vs Sempron 64: From AMD - The AMD Sempron processor is the derivative of the state-of-art AMD Athlon processor. Although the two processors are related, there are key differences in the CPUs and the platforms designed to support them, reflecting the requirements of their target markets. Specifically, the AMD Athlon processor is planned to be available at higher clock rates, and features more full-speed, on-chip cache memory. The AMD Sempron processor was designed to consume less power than the AMD Athlon processors, thereby enabling lower cost systems. Additionally, AMD Sempron processor-based PCs are likely to employ lower cost memory and graphics solutions.

    Opteron vs Xeon: The Opteron is AMD’s new 32/64bit processors mainly targeted at servers. It offers many innovative features. The key ability of the Opteron over other processors is that it is capable of 64-bit processing which isn’t possible with the Xeon. The currently generation of Xeon processors is very similar to the Intel P4. All two of these type processors can be used to make reliable server motherboards (dual / quad cpu) are harder to locate then other types of motherboards and are much more expensive.

    Software Compatibility problems for AMD processors are very rare. If you are using some very specialized software (often very old, too) designed only with Intel processors, you might run into some problems. Intel is compatible for almost all softwares.

    Heat considerations: Higher the speeds means more heat from the CPU. The CPU cooling has become much more important and sophisticated than in the 486 and Pentium ages. Consider using a huge heat sink, efficient CPU fan, front and rear case fans, fan duct, and an efficient case among other tools to keep your CPU cools.

    Reliability: Among all computer components, processors are among those with the least return rates and thus the highest reliability, which is true for all the brands of processors. This is probably due to the fact that the processors are mass-produced by machines with little if any, human interaction. In addition, the quality control process can be automated.

    Once you have made a decision on the category of the processor, choose the highest speed your budget can allow in that category. Keep in mind that the overall speed of a computer system depends on: processor speed, size of RAM memory, size of cache, hard drive access speed, and video speed. You often have to pay too much to reach the top performance speed. For instance, the top speed may give you 20% more in performance than the next level down, but the price may be 60% more.

    Price vs. Performance: There is typically no good correlation between these two factors, especially at the top speeds. Average users should not purchase the top-speed on the market. The price difference is not worthy of the performance difference.

    Upgrade Considerations: Check the highest speed that your motherboard would allow for that category of processors to see how much higher you could upgrade to without changing the motherboard.

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    How to Select Motherboard

    If you are building a new system we highly recommend going with a CPU and the motherboard that is of current technology such as, the AMD Athlon 64 or the Intel Pentium 4 (LGA775), in order to maintain an upgrade path. Once you know what form factor you are going to use you must make sure that the motherboard you are going to use supports the bus speed of your processor or higher. For instance, if you were buying an Intel Pentium 4 processor with a 533MHz bus it doesn’t make sense to buy a motherboard that only supports a max bus speed of 400MHz.

    The reliability of motherboard as measured by return rates is roughly correlated with the price you pay. As a rule of thumb: the higher the price the better the reliability. We suspect that the manufacturers who have higher profit margins do more extensive testing and quality control before shipping. Therefore, we suggest that you buy a motherboard of the highest price your budget can afford. It is not easy to replace a motherboard, even for professional technicians. Besides, if the motherboard is bad, your whole system is likely to be in jeopardy.

    On the other hand, motherboards do not have any moving, consumable parts. If they go bad, most often they do so within a month. If you can take your chances and are willing to learn how to replace a motherboard, the less expensive motherboards are just fine for budget minded buyers.

    Buy current but proven technology. Purchasing yesterday’s technology can mean greater difficulty or limitation in future upgrades. For example, it doesn’t make sense to buy a Socket 478 motherboard anymore, since Intel stopped making Socket 478 processors when they reached the 2.4GHz speed. Socket 478 processors are now starting to become rare and their performance is lacking compare to newer Socket LGA 775 versions.

    WARNING: Changing a motherboard from one type to another with different BIOS/chipset usually requires reinstallation of your operating system, particularly under Windows 9x. This happens because Windows 9x is designed to be “smart” enough to recognize some hardware; however, once it is set you can’t change it easily. This can be an upgrade nightmare if you are not prepared for it. Be prepared to do a full operating system install/re-install when you change a motherboard!

    Regarding chipsets: The chipset is what makes your motherboard work. Different chipsets support different things, and have different integrated features. Chipset companies are usually very competitive, especially third party ones such as nVIDIA, VIA and SiS. In general the newer a chipset is for a given series of processors, the better the performance will be. However, the first few motherboards with a brand new chipset are more likely to have problems then motherboards produced later on. Often these sorts of problems are cleared up through patches, bios updates, and other fixes but it can be disappointing to get the latest, hottest new motherboard on the market and then find out it doesn’t like part x due to a bios problem after you install the board. The saying goes: “If you stay on bleeding edge, then you are likely to bleed.” The best thing to do is to research the motherboard you are interested in at the manufacturer’s website and at popular review website. It usually isn’t a good sign if the motherboard manufacturer does not have at least one bios update available. Also, motherboard manufacturers learn from the mistakes of their rivals and from their own previous mistakes. The third or fourth motherboard that hits the market using a new chipset is less likely to have problems than the first one to hit the market.

    To integrate or not to integrate? Integration is a current industry trend. It saves cost and space to integrate as many components onto the motherboard as possible such as video, audio, modem, and network card. Integrated motherboards tend to have limitations on future upgrade ability and expandability. It is not recommended for power users. It may however serve first time and budget-minded buyers and as a second machine as well. The reliability of integrated motherboards have improved significantly in recent years, although the chances for something to go wrong on an integrated motherboard is still higher than a non-integrated one.

    Convenience factor: If you are familiar with or have a large installation base with one brand/model of motherboard, staying with the same brand may help you minimize the number of manuals to keep. If nothing else, you want to keep your motherboard manual for as long as possible in the event of a problem with the manufacturer. Motherboard manufacturers now usually offer downloadable versions of their manuals online in order to assists their customers and to provide a way to correct errata. However, some manufacturers have been known to change the features on a motherboard without changing motherboard model. This creates problems later on if you have to download a manual, as the motherboard you have may be different than the revised one that manual is meant for.

    If volume matters to you, guess who is by far the number one motherboard manufacturer in sales? Intel. Their volume comes mainly from OEM channels! Asus and Gigabytes/MSI are in second and third places.

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    How to Select Memory Module

    Memory plays a significant role in the following important aspects of your computer system:

    Performance: The amount and type of system memory you have is an important contributing factor to overall performance. In many ways, it is more important than the processor, because insufficient memory can cause a processor to work at 50% or even below its performance potential. This is an important point that is often overlooked.

    Software Support: Newer programs require more memory than old ones. More memory will give you access to programs that you cannot use with a lesser amount.

    Reliability and Stability: Bad memory is a leading cause of mysterious system problems. Ensuring you have high-quality memory will result in a PC that run smoothly and exhibits fewer problems. Also, even high-quality memory will not work well if you use the wrong kind.

    Upgradability: There are many different types of memory available, and some are more universal than others. Making a wise choice can allow you to migrate your memory into a future system or continue to use it after you upgrade your motherboard.

    * Memory is one thing that we suggest customers not to buy just based on prices alone. The quality of memory modules is extremely critical to computers. This is especially true in a high-speed. You or your customers will not like seeing “that blue screen” with a “fatal error message” (often a sign of memory problems).

    * Chipsets on memory modules are very important! Watch the brand on the chips carefully. There are only a dozen or so original manufacturers around the world who are capable of designing and producing memory chips on a silicon level, such a manufacturing process is very capital intensive. However, almost anyone these days can invest in a memory module machine and start producing cheap memory modules. They often use cheap, off-grade memory chipsets with the original manufacturer names. With such cheap memory modules often come high return rates.

    * Some memory module companies stamp their memory modules with their brand names and make a name out of them. Examples are Kingston, Zion and Transcend. It is a good marketing tool through the retail channels. However, don’t be confused with original chipset manufacturers. A name brand module may or may not have the name-brand chipset on it.

    * The effective speed of a computer system is a function of microprocessor speed, size of cache memory, size of RAM memory, hard drive speed, and video card speed. Buy the largest size of memory modules your budget allows. You will not regret it.

    * Adding more memory modules is probably the easiest and sometimes most inexpensive way to upgrade an existing system.

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    How to Select Hard Disk Drive

    The following advises are based on many years of experience. They are provided as a free service to our customers and visitors. However, Computer Warehouse is not responsible for any damage as a result of following any of these guides.

    * Normal hard drives like we all are used to using are IDE. There is a new standard called Serial ATA, which boosts transfer speeds up to 150MBs (as opposed to a max of 133MBs). The standard also improves airflow and has some other benefits. However, using SATA means you will need an SATA controller, an SATA drive, and an SATA power cable/adapter (often not included on power supplies yet). The actual speed improvement of SATA vs. IDE is hardly noticeable with current drives unless you are talking about the high end SATA drives using RPMs higher than the 7200. If you are building an average/upper end system there is currently no pressing reason to go SATA. – However we do recommend that you choose a motherboard with SATA onboard, that way when the technology improves and you are ready for your next upgrade you will be ready.

    * Among the name-branded ATA66/100/133 hard drives, we don’t see mush of a difference in return rates, which is our way of measuring product reliabilities. Customers prefer one brand to the other, often because of historic and one-time bad experiences. Yet, some other customers may just have the exact opposite brand preference. Therefore, we suggest going with the highest gigabytes for your rupees. Choosing hard drives, instead of brand.

    * However, be careful in where you buy. Some manufacturers have restrictions on how warranty is done with OEM hard drives. Some of them only honor the three-year warranty if they are purchased from an authorized distributor or registered reseller. Computer Warehouse is an authorized distributor or registered reseller for all the hard drive brands we carry.

    * There is only a small price difference among 40, 80, 120 and even 160 gig ATA100/ATA133 IDE hard drives. We suggest getting as large a hard drive as possible if you don’t care to spend 300 or 500 more for 40 or 80GB more space! That’s cheap! Especially consider a 4 or 8GB hard drive used to cost Rs 20,000 only a few years ago.

    * If you are working with a limited budget a 40 gig or 80 gig drive is plenty for many people!

    * The above is true for most average users, for whom reliability of a hard drive is often more important than the functionality or specification. For more advanced, power users, one may need to look into the specifications of a hard drive with a magnifying glass to see some differences and then decide which one is better. Hard drives with 7200RPM (normally 5400RPM) are good choices.

    * Ultra DMA EIDE is a fast technology, with an average access time of 11-12ms. (Ultra DMA is another name for ATA such as ATA66/100/133 on IDE) in comparison, SCSI II(often also referred as Ultra or narrow SCSI) hard drives typically have an average access time of 9.5ms. In our opinion it is not worth the extra money to go with SCSI II. The standard IDE drives using ATA100/133 speeds are just fine for most applications. You can also get a boost by using the new SATA standard. Some SATA drives using high RPMs may have better access times as well (compared to IDE).

    * Then if you are REALLY serious about getting fast access to your data, such as large databases and image files, consider using one of the latest hard drives technologies, Ultra-2-wide SCSI III with an access time of 5.2-5.7ms! Wow! That’s FAST! But you’ll pay for the speed. You also need to use a more expensive Ultra-2-wide SCSI controller.

    * Do not buy refurbished hard drives, no matter how low the prices are. The potential trouble down the road is not worth the savings. Used, but working hard drives are a better and possibly more reliable way to save money.

    * The best way to upgrade a hard drive to a larger one without reloading the operating system, programs and documents is to use utilities software called Norton Ghost. Ghost allows you to copy (or “ghost” as some may say) the entire content of the older, smaller hard drive to a larger one very quickly. All the programs and configurations are “transferred”. The Ghost program is available in Norton System Works 2005 CD.


    The difference between IDE and Serial ATA (SATA).

    If someone to say they preferred a serial connection to a parallel connection, most would laugh at them uncontrollably. Serial COM ports have always been known to be one of the slowest connections in modern computers. However, the newest version of Advanced Technology Attachment (ATA), Serial ATA, is set to sweep parallel ATA off its feet.

    (IDE) Vs (Serial ATA)
    Maximum Speed - 100 MB/s with burst up to 133 MB/s(IDE) 150MB/s Currently 300MB/s by 2005 and 600MB/s by 2008(Serial ATA)


    Cable length - 18 inches(IDE) 1 meter (about 40inches)(Serial ATA)
    Cable pins - 40(IDE) 7(Serial ATA)
    Power connector pins - 4(IDE) 15(Serial ATA)
    Data transfer wires used - 26(IDE) 2(Serial ATA)
    Power consumption - 5V(IDE) 250 mV(Serial ATA)
    Hot Swappable? - No(IDE) Yes(Serial ATA)


    Between the last quarter of 2003 and the first quarter of 2004 motherboards with onboard SATA adapters were released to the public market. For users that are not ready to purchase new motherboards, SATA RAID controllers are available as well. Most hard drives manufacturers released their first SATA hard drives for sale in the first or second quarter of 2004. For those that would like to take advantage of SATA’s longer and thinner cabling requirements without having to purchase new hard drives, SATA adapters, can be purchased to convert current drives to accept SATA cables. To fully implement the SATA standard a new motherboard, a new hard drive or other storage device and a new power supply or power adapter must be purchased. For the time being, power adapters, can be used with existing power supplies.

    When looking at the hardware for serial connections, one can easily see the differences between it and IDE. The SATA connector is much smaller than its parallel counterpart. This effectively means that the motherboard manufacturers will have more room to include more on board options as well as being able to offer better board layouts, as this will not be so restricted by the ATA connectors.


    It is unknown how quickly most consumers will begin using Serial ATA devices. The majority of current PC users will not want to trade in their existing system just to take advantage of a few extra MB/s. However, many technical users and PC junkies may find themselves huddled over their favorite suppliers? Website waiting for the instant the next set of SATA drives become available for sale. Furthermore, many Original Equipment Manufacturers (OEMs) will look to incorporate SATA devices in their PCs in the near future. The Parallel ATA interface is one of the few aspects of a computer system that has remained unchanged for many years. However, it appears IDE may be in search for its final resting spot once Serial ATA begins to consume the retail market.

  6. #6
    Dresari
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    WOWOWOW darani thats too much of an info. try to give some simple suggestions. But its really great u have some great interesst in tech. i see

  7. #7
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    well thnx frnd....

    actually i'm not so gud in these....
    i just give watever i know and watever i read......

    tats it...

  8. #8
    Dresari
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    but still thats great dude!!!

  9. #9
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    thnx frnd...

  10. #10
    shalin_99
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    cool info...man....u rockk...

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