21 August 2010


A motherboard is the main printed circuit board in a computer that carries the system buses. It holds the sockets to which all other components are connected, such as the processor, memory modules, graphics card, sound card, and all other components and peripheral devices.
The motherboard's role in a computer system can easily be described by comparing it to the human body's nervous system. The wires (nerves) on the motherboard transfer data to all the other components.

Three well known motherboard manufacturers are Asus, Gigabyte, Intel, and MSI. Buying your motherboard from one of these brand names is always a good idea, as you will know you're getting a quality product.
After reading this motherboard articles if you’re Sales Purchase & repairing old/new motherboard              
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20 August 2010



A network interface card, network adapter, network interface controller (NIC), or LAN adapter is a computer hardware component designed to allow computers to communicate over a computer network. It is both an OSI layer 1 (physical layer) and layer 2 (data link layer) device, as it provides physical access to a networking medium and provides a low-level addressing system through the use of MAC addresses. It allows users to connect to each other either by using cables or wirelessly.

An Ethernet network interface card is installed in an available slot inside the computer. The NIC assigns a unique address called a MAC (media access control) to the machine. The MACs on the network are used to direct traffic between the computers. The back plate of the network interface card features a port that looks similar to a phone jack, but is slightly larger. This port accommodates an Ethernet cable, which resembles a thicker version of a standard telephone line. Ethernet cable must run from each network interface card to a central hub or switch. The hub or switch acts like a relay, passing information between computers using the MAC addresses and allowing resources like printers and scanners to be shared along with data.
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How to Fix Computer Network Issues

How to Fix  Computer Network Issues
Network problems are annoying. It may seem impossible to fix your problems or even figure out what is wrong. If you lost your connection to the network or are having difficulties setting up your home network so that users can share files, folders and printers, the tips below can help to troubleshoot your problems.
Computer Can't Reach the Network
Step 1
Check the light on the back of your computer, near the network cable. The light should be green. If there is no light, disconnect and reconnect the cable. If there's still no light, check your connection on that other end. Make sure your network cables are securely attached to a working hub or router. Remove the cables and plug them back in to be sure. If that connection is secure, replace the network cable.
Step 2
Go into Control Panel. Double-click "System." Go to the Hardware tab. Click on "Device Manager" to open it. Look for "Network Adapters" and click the plus sign next to it. If you see an explanation point or a red X, this indicates a problem with your network card .
Step 3
Turn off your computer, unplug it and remove the connection to the monitor. Open your computer and reseat your network card by removing it and putting it back in place firmly. Put your computer back together and turn it on. If you still have an error with the network card, you'll need to replace it.
Step 4
Evaluate your network configuration if there is no problem with the network card or cable. Right-click "Network Places" on your desktop. Choose "Properties" from the menu. Look for the "Local Area Connection" icon. Right-click it and go to "Properties." Click on "TCP/IP ."
Step 5
Note your settings in TCP/IP. If there is an IP address entered, write it down, along with the subnet mask and gateway. Check working computers in your home to make sure the subnet mask and gateway are the same as yours. The IP address must be different from other network devices.
Step 6
Release your IP address if you are set up to receive an IP address automatically. Click on the Windows "Start" button, click "Run." Enter the word "cmd" in the run box. Type "ipconfig/release" at the prompt. Then type "ipconfig /renew." You should receive a new IP address. If you get an error, check your router and replace if necessary. Then type "ipconfig /flushdns" to clear your DNS settings.
Computers on the Network Can't See Each Other
Step 1
Click the "Start" button in Windows. Select "Programs" and "Control Panel." Double-click on the icon called "System." Click on the tab labeled "Computer Name."
Step 2
Write down the name of your workgroup or domain. Check your computer name. If you have older computers in your home, avoid using characters or spaces in your computer name and keep the name to eight characters or fewer.
Step 3
Right click the "Network Places" icon on your desktop. Click "Properties." On the "General" tab, make sure you have "Client for Microsoft Windows" and "File and Print Sharing for Microsoft Networks" and "Internet Protocol (TCP/IP)" installed. Check the properties of TCP/IP and write them down.
Step 4
Check the other computers in your home. They should have the same workgroup or domain as yours. They must have the Microsoft client and file and print sharing installed under network properties. If your IP address is manually entered, rather than updated automatically through DHCP, all computers should have the same subnet mask and gateway but different IP addresses.
Step 5
Turn off your PC firewall temporarily to make sure it is not blocking internal network traffic.

After these steps we are sure you’re fix your network problems if you are not fix network or Internet problem contact us http://jsminfo.blogspot.com/ and call 8800335542, 9560949000
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16 August 2010

How to solve network connectivity problems

How to solve  network connectivity problems ?

Network connectivity problems occur when one or more computers cannot communicate with other areas of the network. There are two levels of connectivity problems:
1:-           Loss of connectivity - When users cannot access areas of some part of network.
2:-           Timeout problems - Timeouts cause loss of connectivity, but are often associated with poor network performance.
Network connectivity problems have various causes but the most common causes for connectivity problems are:
(A)           Network adapters and switch ports have mismatching duplex levels or transfer speed settings.
(B)           Network adapters or switches with transmission rates of 10/100 megabits per second (Mbps) do not switch over correctly. Some autosense settings may not correctly detect the speed of some network adapters.
(C)          The network adapter is incompatible with the motherboard or other hardware or software components and drivers.
To troubleshoot network connectivity problems, follow these steps:
1.     Use the Ping  command-line tools to test basic connectivity
2.     Check the event logs for network-card-related entries or connectivity-related entries.
3.     Check whether the network adapter is on the supporting list of the Computer operating system.
4.     Check other computers that use the same default gateway that are plugged into the same hub or switch. If these computers do not experience network connectivity problems, the problem may be a faulty network adapter on one computer.
5.     Contact the vendor of each motherboard and update the BIOS of the boards to obtain the latest version.
6.     Check the network adapter and uplink hardware (hub or switch) for common settings. Make sure that all complementing network resources (network adapter, hub, and switch) are set to the same speed and duplex level.
7.     Manually set the network adapter of the computer that has connectivity problems to half-duplex and a lower speed.
8.     Swap the network cable between the failing system and the hub or switch.
9.     Replace the network adapter with a network adapter that has been tested and proven reliable. To do this, follow these steps:
1.     Remove the network adapter diagnostics program.
2.     Remove the network adapter in Network properties.
3.     Install the new network adapter.
We are sure after these steps you’re fix Network connectivity problem if you  are not  fix Network Connectivity Problems Contact JSM INFOTECH 9560949000, 8800335542