|
|
|
In This Section
Computers
Accessories
Blank Discs Components CD - CDR - CDRW Game Controllers Hard Drives Keyboards Mouse and Trackball Modems Monitors Multimedia Projectors Networking Palmtop Handheld and PDA PC Desktops PC Notebooks PC Tablets Printers Scanners Smart Displays Sound Adapters and Sound Cards Speakers - Microphones - Headsets Webcams Wireless Networking 802.11 Wireless Software
More Ways to Shop
Hot Deals Newsletter
Request our full color catalog featuring thousands of cutting edge products.
|
Product Guide
Components
(Click here for products)
Build Your Own Desktop PC or Learn how to Upgrade It The main function of a personal computer is to run software. Games and video applications are becoming more graphics intensive. Many computer models, available from manufacturers (i.e. Sony, Gateway, HP), don't necessarily include everything you might need for running your applications the way you want. In addition, the technologies in software and in computers evolve rapidly. The desktop you've been using for the last two years may already be incapable of running the most recent software updates or accessing some high-level websites. So what do you do? Does it make more sense to upgrade your current PC, replace it, or build your own? Upgrading your current desktop may be your first choice. For example, if you want to play or process videos, you might want to upgrade your video card. Adding a video card is relatively easy. Most desktops have an available expansion slot for adding cards. This slot is known as PCI (Peripheral Component Interconnect). The PCI slot was later revamped and called PCI-E (express). The most advanced video cards require PCI-E slots but your PC only has a PCI. The only way to upgrade a PCI to a PCI-E is to replace the entire desktop system board (motherboard). The motherboard is the core of your desktop where the drives are connected, where the main processor and memory reside, where many ports connect. That means pulling out most of the drives to get to the core of your desktop case. Replacing the motherboard with one that has a PCI-E slot may also mean that you'd need to install a different processor and different memory. You might even confront stranger issues. Some PC manufacturers create their own exclusive parts (proprietary) to prevent anyone from doing what you're trying to do. At this point, you should consider whether it's all worth it. Building your own PC from scratch may be the wisest and most economical solution, especially if you want to be able to refine your PC for evolving needs. It's akin to buying a suit off the rack or having one custom tailored to fit the way you look and live. It may not be as simple as buying one at a store and plugging it in but it may be simpler than you think. A custom PC that you build will be a better investment and the best value overall. You'll also be more acquainted with the inner workings of your PC for troubleshooting issues and tweaking better performance. For time, money, and performance, you may find that this is the time to build your own desktop PC. The simplest way in answering this question is what kind of software you will need to run. If you are building a family computer for e-mailing, surfing the Internet, viewing photos or listening to music, the most demanding software program would most likely be the Windows Vista OS. You would need to check all the software you plan on installing and check the highest recommended system requirements. You might want to double these system requirements if you plan on keeping the same machine for the next few years. Some of the more demanding programs out there are generally photo / video / audio editing, architectural drawings, and 3D games.
Here is a list of the computer parts you will need:
Here's three possible Computer Specs you might want to consider
Typical System
Starter System
The CPU handles sequences of stored instructions call programs and then executes them. Compared to the old days when you just looked at the GHz speed, you have the option on deciding between Core 2 Duo, AMD Athlon X 2 and the new Core 2 Quad. Adding more cores will give you much more performance than any clock speed increase. Why is it more important to have 2 or 4 cores in a CPU chip? We'll take a look at a typical user running multiple simple programs like Antivirus, MSN/Yahoo messenger, Internet Explorer and listening to music with Windows media player / Realplayer, running all these programs the same time on one single core just wont do. It would then require a powerful processor such as deciding between 2 or 4 core processors. We've looked at the number of cores but now the other important feature in processors is the L2 Cache and system bus, you would generally see 1MB, 2MB, 4MB, 8MB L2 cache and you will also see 800MHz to 1066MHz bus speed. These two factors can also improve your system performance by 10% to 30%. That is why a Celeron D 3.4GHz processor with 512KB L2 Cache with 533MHz bus would run slower compared to Core 2 Duo 1.8GHz with 4MB L2 cache with 1066MHz bus. The motherboard or desktop board is the body of the computer. I would consider this your 1st important choice in building a computer. Here you will be limited to what type of CPU chip you can use like Intel or AMD, you will then need to decide on which series of chip such as Athlon, Athlon X2, Core 2 Duo or Core 2 Quad to use. Next is how much RAM memory 4GB or 8GB, and what speed of RAM memory it can handle, choices are from 400MHz to 1066MHz. Most likely you would look for maximum 4GB with 533MHz to 800MHz speed memory slots. The standard connection for most hard drives, DVD Burners and Blu-Ray drives is SATA 3.0GBs, so look for 4 to 6 connectors. Another important feature is what types of ports are found in the back panel, 10/100 or 10/100/1000 network, modem, audio connections, how many USB ports it has or does it come with FireWire. Lastly the number of PCI Slots in the motherboard and how fast are they, PCI-E x16 or x8 are generally used for the video card and PCI for expansion such as a TV Tuner card. Inside the motherboard package you will find detailed information on what plugs into what. RAM (Random Access Memory) memory is used as main memory; you have area used for loading, displaying and manipulation of applications and data. RAM is purchased and installed as chips, tiny microprocessors that fit into slots provided on the motherboard. A typical memory chip is an integrated circuit (IC) made of millions of transistors and capacitors. In the most common form of computer memory, a transistor and a capacitor are paired to create a memory cell, which represents a single bit of data. The term RAM was later changed to SDRAM (Synchronous Dynamic Random Access Memory). Currently, most available motherboards use DDR2. DDR2 SDRAM or double-data-rate two synchronous dynamic random access memory offers greater bandwidth for rapid performance required for higher speed storage of the working data in a computer. RAM lives as the computer or software remains 'on'. Once it's off RAM content erases. (For permanent storage see Hard Drive). How does RAM affect your computer? Consider you have two cups, one filled with water (hard drive) and the other cup (CPU processor). RAM would be a spoon transferring the water (Information) from the filled cup to the other cup. The size of the spoon would be 1GB, 2GB or 4GB RAM and the speed at which you transfer the water is Bus speed and CAS Latency. There are many different speeds of memory such as 400MHz, 533MHz, 800MHz, and 1066MHz. Higher MHz means the more data transfers per second (MHz equals million transfers per second). The lower the CAS latency the less time it takes to fetch data. How much RAM to get depends on your software system requirements and if your running multiple programs at the same time, generally you would want to stick to 2GB RAM. Even though you might consider getting less memory now and upgrade later, the price of RAM won't make that much of difference in the future for savings. When running advanced operating systems, like Microsoft Windows Vista, you may opt for 4GB RAM, especially for advanced or server applications. For intents and purposes, you want a motherboard to accept the latest and advanced available memory. While there may be plans for more advanced DDR memory chips, the key here is what's available as you build your computer. Two fundamental drives are used in computers. Hard Drives have permanent, non-removable discs with very large storage capacities (up to Terabytes - trillions of characters). A removable disc drive reads CD, DVD, and other formats of removable discs. Capacity is rated on the capacity of each disc type.
Hard Drive:
Removable Disc Drives:
Since some motherboards come with built-in video and sound cards, building a computer is even easier. For most users, word processing, emailing, spreadsheets, watching videos, photos, chess / card games, you would do fine with the built-in graphics card. The only time you would need to purchase a video card would be for 3D gaming, Video editing, or for 3D Graphics. The benefit for getting video card is to better handle the intensive 3D animations found in architectural, 3D games or just redesigning your home. Some of the choices of video cards out there vary from the amount of video memory such as 128MB, 256MB, 512MB, and 768MB. The general rule is, more memory devoted to video processing the better to handle complex and 3D graphics. Since Blu-Ray or HD DVD drives gives you high-definition images that are up to six times the detail and are eventually going to replace DVD, you would need to get a dedicated video card that will decode the massive amount of data that these drives hold, to give you sharp ultra smooth video and vivid colors in images on your HDTV or Computer LCD screens. For gamers the most important boost in running 3D games is the graphics card, there are two major types of chipsets Nvidia and Radeon. Getting a video card with one of those two would allow you to see more lighting, shadows, weather effects, increased textures and faster frame rates at higher resolutions. If you don't want the jitteriness when playing massively multiplayer online role-playing games look at spending $300 or more in a video card. An important note is when your getting a high end video card you would also need to make sure the power supply will be able to handle the video card, mostly a 550W to 700W power supply would suffice. Also when getting a video card with PCI-E x16, make sure the PCI Express slot on the motherboard is compatible. Getting a video card can improve you system power by 20% to 40% in the area of 3D and HD content, but would also increase the price of the computer by 25%. If you're composing, editing, recording music for adding a sound track to videos or for creating your own CD of your music band, getting a high quality sound card would be needed since this would let you record at higher frequency so you'll hear everything in crystal clarity. Generally the audio jacks coming out of the motherboard audio does not give you the quality you would get from a separate sound card, adding a sound card would give you up to 7.1 channel surround sound coming from DVDs or Blu-Ray when you need to connect to home theater system to provide you with THX, Dolby Digital or DTS decoding. When playing video games you will be able to locate enemies by sound from crisp gunshot sounds and explosions before you even see them with positional audio. This will also give you more than 15% game performance over ordinary motherboard audio by freeing up the CPU processor to handle enemy AI and physics. Selecting computer case is really based on ones own personal taste, black or silver, design, access to the power button, USB, FireWire ports. Computer cases come in different sizes such as desktop, mini, mid and full. If the motherboard is ATX sized it'll only fit into a mid or full sized case, where as micro ATX would fit in all. Also make sure the size of the case gives you enough room to work with in assembling your computer together and for possible future upgrades like adding more hard drives, Blu-Ray drive or memory card reader. The only time you would prefer smaller case is if your deciding to build a home theater PC and want to place it with the rest of your home theater components. In this case you would need to make sure the video card or sound card would fit inside a case like this. A decent power supply would be in the range of 400W to 550W to allow you the capability to add more hard drives or upgrades you might need in the future. Purchasing extra cooling fans for your computer is optional. The reasons for getting separate cooling fans depends on how many hard drives, DVD drives, video card or if you plan on overclocking the system. There are new cooling methods out there such as water-cooling to give you a quieter system. Another way to get quieter computer performance is replacing the CPU fan and case fans for quieter ones inside your computer. Better cooling is recommended if the room your working in gets hot. If the computer overheats the computer system will shut down, possibly losing what you were working on. The whole reason for building this computer is for running software. The most important software to get your computer running is the Operating System such as Windows Vista. Windows Vista Home Premium comes with Media Center, which is perfect for photos, music and videos. Windows Vista Business doesn't come with Media Center but does provide you with greater networking tools, such as remote access, VPN and more. Windows Vista Ultimate might be expensive to purchase but the benefit here is that you get everything Vista Home and Business has to offer. You can also install other OS such as Linux or Windows XP. The only reason for choosing Windows XP is for system capability found in business that hasn't upgraded in the past 5 years.
Preparation:
Set Up:
Opening the Case:
Fitting the power supply (if your case did not come with one):
Motherboard:
CPU processor and CPU Fan:
RAM Chip
SATA Hard Drives:
DVD Drive:
PCI-Express, PCI cards:
Plugging in Cables:
Connecting Drives:
Installing Windows Vista:
Maintenance:
Building your own PC may not be for everyone but it should be. It helps you build a desktop PC to meet and even exceed your needs. Should emergent technologies require upgrades, you can decide what you need to address and boost performance of your PC without buying a new one. For one who loves to use a PC, it's the best way to go. And J&R is your source for all the products you need.
Components
(Click here for products)
|
|
Customer Service
|
Company Information
|
Contact Us (Se Habla Espaņol)
Email
|
Certifications & Customer Ratings | ||
|
|
|
|
|
|
|
| See More Certifications & Customer Ratings | See Customer Testimonials | |||||
|
Music content © Copyright 1948 - 2008 Muze Inc. For personal use only.
Movie content © Copyright 1981 - 2008 Muze Inc. All rights reserved.
Online prices, selection, descriptions, specifications and images generally match our retail stores, but may vary and are subject to change without notice. Not all accessories pictured are included. Manufacturer rebates, terms, conditions and expiration dates are subject to manufacturers forms. Not responsible for typographical errors. © Copyright 1997 - 2008, J&R Electronics Inc. All New York Yankees' trademarks and copyrights are owned by the New York Yankees and used with the permission of the New York Yankees. |
|||||