How to Check for Dead Pixels on LCD Monitors

Portable Hard Drive Quick Defragmenter Tools For USB Drive

Here is the Portable defrag tools list that suitable stored on USB drive for hard drive defragmenter purpose. Defragment utility has been become important tools for windows user to make sure the files fragmentation is well organized and recover or repair the hard disk bad cluster.

However, the default defragment tools on Windows operating system is eventually slow and less functionality. So, below show a list of free Portable hard drive defragmenter tools can been use to defrag your hard disk for better performance and recover bad cluster. Meanwhile, this portable defrag tool doesn’t requires software installation, which you can run it directly from USB drive or removable storage drive.

Best Free Portable Hard Drive Defragmenter Tool:

WinContig – Portable Defragment Tool

Portable Defragment tool do not requires any installation directories or registry entries install on your computer. It can help windows user performs quickly defrag files and folders without having to defrag the whole disk for better optimization and performance.

PageDefrag – Portable Defrag Tools

PageDefrag uses advanced techniques to provide you what commercial defragmenters cannot: the ability for you to see how fragmented your paging files and Registry hives are, and to defragment them. In addition, it defragments event log files and Windows 2000/XP hibernation files (where system memory is saved when you hibernate a laptop).

MyDefrag ( Previously known as JKDefrag)

This defragmenter tools comes with better defrag features and GUI interface compare to JKDefrag. Meanwhile, it also integrated with Microsoft defragmentation api as the core defragmenter engine which it will load fast, low overhead, with better optimization on your hard disk performance.

Auslogics Disk Defrag – Portable Disk Defragment Tool

Auslogics Disk Defrag is a compact defragmentation tool that supports FAT 16/32, and NTFS (with compressed and encrypted files). It helps in maintaining high-level disk performance and speeding up your PC. Plus more, Auslogics Disk Defrag can also defrag removable storage media and ‘View detailed reports’ of Defragmentation Results.

With above portable hard drive defragment tools, you can easily defrag hard drive without installing defrag software on computer. If you know portable defrag tools should includes on the list, let us know via comment.

Steps to install PCI VGA(AGP) Card to Computer Mother board

One of the easiest installs on your computer is to install PCI cards. There are about a million different types of PCI cards.

To install PCI cards, you need to:

Troubleshooting a PCI card install

Here are a couple tips if you have trouble when you install your PCI card.

• If your computer doesn’t turn on make sure the power cable is plugged into the wall and plugged into the computer’s power supply.
• After installing your PCI card, if your computer turns on but beeps a couple times and the operating system does not load, repeat the install process but try the PCI card in different slots on the motherboard, it is possible that you have a bad slot.
• If all else fails when you install your PCI card, contact its manufacturer for more help.

How Monitor Fan Speeds Temperatures and Voltages in PC

Speed Fan monitors controls fan speeds, temperatures and voltages in computers with hardware monitor chips. Speed Fan can even access S.M.A.R.T. info for those hard disks that support this feature and show hard disk temperatures too, if supported. Speed Fan can even change the FSB on some hardware. At the lowest level, Speed Fan is a hardware monitor software, but its main feature is that Speed Fan can control fan speeds according to the temperatures inside your pc, thus reducing noise and power consumption.

Download Free SpeedFan 4.34

How to Replace CMOS Battery

Introduction and Lithium Battery

Every PC motherboard has a battery. That battery serves two purposes: to feed the configuration memory (also called CMOS) and to feed the real time clock of the computer (the one that show the date and the time). An indication it is time to change the motherboard battery is receiving one of the following error messages when you turn on your computer: CMOS CHECKSUM FAILURE, CMOS BATTERY STATE LOW, CMOS SYSTEM OPTIONS NOT SET and CMOS TIME AND DATE NOT SET. Another indicator of a low battery is a clock that, after being set, runs well while the computer is on, but shows the wrong time when the computer is turned on the following day (it is late). The motherboard battery can be built using three different technologies: Nickel-cadmium (NiCd), NVRAM (Non-Volatile RAM) and Lithium (Li). The Lithium battery, which is a round one (the size of a coin) and can be easily found at watchmaker's and computer parts stores, has long been the most used type. To buy one of these batteries, all you have to do is to look for a model CR2032 one. Replacing the motherboard lithium battery demands some care. It seems to be a simple task, but it is not. The lithium battery may use basically three socket types: socket with upper tab (Figure 1), socket with lateral tab (Figure 2), and the socket into which the battery stands instead of lying (Figure 3). Figure 1: Socket with upper tab. Figure 2: Socket with lateral tab. Figure 3: Another kind of battery socket. While the replacement of the battery in the socket with the lateral tab or of the one that stands is simple (Figures 2 and 3) – all you have to do is draw back the tab using your finger or a small screwdriver and replace it – the replacement of the batter that has an upper tab covering it (Figure 1) demands extra care. In this type of socket, if you raise the metallic tab to replace the battery, it will lose its pressure and will not make contact with the battery anymore, damaging the socket. In this case, the correct replacement of the battery in done pressing a small plastic lock at the side of the socket with the fingers or using a small screwdriver. That will allow the battery "to slide" laterally, not damaging the upper tab. Whatever the socket used, don't forget that the replacement of the battery should be done while the computer is off Related Articles How to Replace CMOS Battery How to Repair Monitor How to Change Mother Boards in Desktop? How to Upgrade a Computer's BIOS How to Repair SMPS Intel Atom Processor Mother Board Basics

How to Repair Monitor

Computers are useless without a monitor. You can’t surf the Net or see what you typed on the keyboard. It’s a good thing that computer monitors are virtually trouble free. Besides checking to see if it’s plugged in and making a few adjustments there’s little you can do to fix it without specialized help. Even so, let’s take a look at how they work and how to tackle something you can fix, the monitor fuse.

How Does It Work?

A computer monitor, sister to the television monitor, displays information from a computer on a screen. The monitor uses digital values sent by a computer processor to create a stream of electrons that light up phosphors on the inside of the screen. The signals are in each of the three primary colors, combined into various color signals that seem to move across the screen. Portable computers use a screen made up of liquid crystal display (LCD) cells instead of phosphors. Computer monitors receive their signal from a monitor cable from the computer and their power from a separate electrical cord.

What Can Go Wrong?

Computer monitor problems are not always problems with the monitor. Testing of the monitor must be done with the computer . The monitor may not come on. The image on the screen may not be clear and bright

How Can I Identify the Problem?

If the monitor does not come on, make sure there is power to the electrical receptacle . Check the electrical cord . Check the connections between the monitor and the computer and make sure the computer is on. Test the line fuse (see below).

If the image on the screen is not clear and bright, check your owner’s manual for instructions on adjusting the monitor. Typically there are adjustment buttons on the monitor face below the screen.

What Parts, Materials, and Tools Do I Need?

Replacement cables and fuses are available from the manufacturer as well as from local computer shops. Tools you may need to access, test, and fix a computer monitor include these:

• Screwdrivers
• Multimeter

What Are the Steps to Fixing It?

Fix-It Tip

A computer monitor gets its instructions from a video controller card in the computer. The card may be an add-on expansion card or it may be built into the main circuit board, called the motherboard. If it is a separate card, you may need to open the computer and make sure the card is firmly connected. Also check the flat data cable that runs between the video card and the motherboard, if so equipped.

Test and replace a monitor fuse:

1. Disconnect the monitor from the electrical receptacle and from the computer processor.

2. Lay the monitor on a padded surface and remove the housing screws (some may be under pop-out tabs).

3. Slide the rear housing off.

4. Locate the line fuse typically near the power cord entrance. Remove the fuse from its holder and test it with a multimeter. Replace the fuse if it is faulty.

Caution!

For safety, follow the manufacturer’s instructions in the owner’s manual to discharge the video tube before working near it. In most cases this means using jumper wires to connect a 10,000-ohm resistor between the chassis ground or common ground and a screwdriver, and shorting the high-voltage lead by inserting the screwdriver under the suction cup.

Troubleshooting Tips for New Monitors

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Here are some basic trouble shooting tips for new monitors:

1. The picture does not appear
• Check to make sure the signal cable is firmly connected in the socket.
• Check to see if the computer system’s power is ON.
• Check that the Brightness Control is at the appropriate position, not at the minimum.
2. The Screen is not synchronized
• Check to make sure the signal cable is firmly connected in the socket.
• Check that the output level matches the input level of your computer.
• Make sure the signal timing of the computer system is within the specification of the monitor.
3. The position of the screen is not in the center
• Adjust the H-Size, H-Phase or V-Size, V-Center controls.
• Check if the signal timing of the computer system is within the specification of the monitor.
4. The screen is too bright or too dark
• Check if the Brightness or contrast control is at the appropriate position, not at the maximum or minimum.
• Check if the specified voltage is applied
• Check if the signal timing of the computer system is within the specification of the monitor.
• Especially, check the horizontal frequency.
5. The screen is shaking
• Move all objects that emit a magnetic field, such as a motor or transformer, away from the monitor.
• Check if the specified voltage is applied.
• Check if the signal timing of the computer system is within the specification of the monitor.
  

Related Articles

How to Replace CMOS Battery

How to Repair Monitor

How to Change Mother Boards in Desktop?

How to Upgrade a Computer’s BIOS

How to Repair SMPS

Intel Atom Processor

Mother Board Basics