Frequently Asked Questions

  • How to Install CPU Cooling Fans?

    The CPU cooler is a heatsink/fan assembly that draws excess heat away from the processor. Fitting a more effective, efficient cooler is relatively easy, and a potential benefit is that it can help alleviate overheating problems.


    1. Before attaching a new cooling fan, apply a thin layer of thermal paste to the top of the processor chip.
    2. Place the cooling fan over the processor – there's a plastic frame to ensure it's correctly positioned over the CPU.
    3. Lock the cooling fan in place with a pair of spring clips or a series of plastic studs that lock into the mounting frame. Make sure that these are firmly fastened.
    4. Plug in the power cable from the cooling fan and your system is ready to go.

    Tips & Warnings

    The fan on the cooler assembly draws its power directly from the motherboard – there will usually be a connector for this, near the CPU socket. Consult your motherboard manual if you need help locating it.

    Always read your manual before installing CPU cooling fans to check for compatibility issues.

  • How long can I use the Paper Shredder continuously?

    Continuous operations should not exceed 3 minutes. When shredding for a long period of time or leacing the shredder's power switch ON while paper is jammed, the motor may become overheated and stop. If this occuers, move the switch OFF and allow the motor to cool for 30 minutes before resuming operation.

  • I set the Power Switch to the ON/AUTO position but nothing happens.

    As a safety feature, the waste basket must be placed under the head unit, creating a magnetic seal, or the shredder will not function.

    Once the Power Switch is set to ON/AUTO, the shredder is on Standby. Nothing will happen until you try to shred something; at that time the shredder will automatically pull the Paper/CD/Credit Card

  • My Shredder is jammed. How can I get it back working?

    In the unlikely event of a paper jam, please set the Power switch to the reverse (Rev) position. This clears the cutters of paper that have not passed through.

    If Rev does not clear the jam, slowly toggle the shredder's power switch back and forth between the ON/AUTO and REV positions.

    Caution: Rapid switching may damage the shredder.

    Also, make sure the waste basket is not full; a full waste basked can cause a paper jam.

  • Can I get replacement discs or a product key for the software that came with my Dynex product?

    Bundled software and related product keys were provided on a one-time basis with the purchase of your Dynex product. Unfortunately, replacement installation discs or product keys are not available through Product Support. You can purchase a full working version of your software, or consider searching on the Internet for similar software that's open source or freeware/shareware.

    If you've lost the discs but still have the product key, try downloading a demo version of the software from the software developer's website. Some demo versions of software can be upgraded to the full versions by entering a valid serial number. You can also ask them if they are willing to send you a new disc (media, shipping, and handling charges may apply).

  • How do I replace the power supply in my computer?

    If your computer's power supply fails, it cannot be repaired and you'll need to replace it. You may also need to upgrade the power supply to provide more power to your computer for high-end graphic cards.

    Warning: Always disconnect power before opening your computer case and working inside.

    Caution: To avoid damaging components with electrostatic discharge, wear a grounding strap whenever you work on internal components.

    1. Turn off your computer and unplug the power cord from the back of the computer.
    2. Open the computer case, then locate the power supply. The power supply is the metal box that sits at the back of the computer case, usually toward the top, and has several cables coming out of it that connect to other components inside the computer.
    3. Make note of where each of the power supply's cables are connected in your computer case. You can wrap tape around the cables to label them. This will help you connect the new power supply when it's installed.
    4. Disconnect the power supply cables from the components inside your computer case.
    5. Remove the screws that attach the power supply to the case, then remove the power supply. There are usually four screws, and they are unscrewed from the outside of the case at the back.
    6. Place the new power supply in the power supply bay of your computer case.
    7. Secure the power supply to the case with the screws you removed previously.
    8. Refer to the notes you took in Step 3 to connect the power supply cables to the motherboard the same way they had been connected. Make sure the cables are securely connected.
    9. Close your computer case and reconnect power.
    10. Turn on the computer and test the operation of the drives to make sure they are operating correctly.
  • How do I troubleshoot my computer’s power supply problems?

    If your computer turns itself off and on intermittently, won't turn on at all, or has one or more drives that don't work, you may have a problem with the power supply. Try these troubleshooting steps to identify the problem:

    Warning: Always disconnect power before opening your computer case and working inside.

    Caution: To avoid damaging components with electrostatic discharge, wear a grounding strap whenever you work on internal components.

    1. Plug a different electronic device into the power outlet you have the computer connected to. If the new device also experiences problems, the problem is with the outlet's wiring. If the new device works fine, the problem is likely with your computer.
    2. Replace your computer's power cable. If the computer works afterward, the old cable was the problem.
    3. Turn off your computer, then unplug the power cord from the back of the computer.
    4. Open the computer case and visually inspect the power supply for any obvious damage. If it fell out of the power supply bay or has scorch marks on it, it cannot be repaired, and it must be replaced.
    5. Make sure that the power supply's cable to the motherboard is securely connected to the motherboard.
    6. Plug the power cord back into the computer while the case is still open, but do not yet turn on the power switch. Put on a grounding strap, then ground yourself by touching a bare metal surface (other than the computer).
    7. Use a multimeter set to DC voltage to test the power supply. Disconnect one of the cables running from the power supply to any other device, such as a drive, then turn on the computer. Attach the multimeter's red probe to the yellow wire on the power cable, then attach the black probe to the black wire on the power cable. If the multimeter's reading does not equal 12 volts, the power supply must be replaced.
  • How to Check Power Supply Voltage?

    A power supply is an electronic assembly that supplies electrical voltage. If the power supply is part of a larger assembly, such as a computer, then the power supply is meant to provide the voltages necessary to power the rest of the electronics. One of the first steps in troubleshooting a malfunctioning electronic device is to check the voltages from the power supply. If the voltages are correct, the problem lies elsewhere. But if the voltages are not correct, then the power supply can be determined to be faulty or in need of adjustment.

    1. Connect your multimeter probes to your multimeter and turn it on. Observe the correct polarity. The red probe is the positive one, and it is plugged into the red plug on the multimeter. The black probe is the negative or common probe, and is plugged into the black plug on the multimeter.
    2. Set your multimeter function to measure either an alternating current (AC) or direct current (DC) voltage, depending on the output of your power supply. Most power supplies for commercial use produce a DC voltage.
    3. Turn on the power supply. Make sure it is plugged into the appropriate power source. Most power supplies operate by plugging into a typical 120 house circuit.
    4. Connect the multimeter probes to the power supply output terminals by touching the probes to the metal contacts. Power supply outputs are usually marked with a positive (+) sign and a negative (-) sign. Observe the correct polarity with your probes by touching the red probe to the positive terminal and the black probe to the negative terminal.
    5. Read the multimeter display for the output voltage of the power supply.

    Tips & Warnings

    If your power supply voltage is zero, your power supply might have a blown fuse or an open circuit breaker. Some power supply voltages can be extremely dangerous. Make sure you touch the output only with the multimeter probes.

  • How do I install an eSATA port?

    eSATA is a technology for connecting SATA hard drives outside your computer. This makes it easy to store files on an external hard drive for backup or portable use, similar to USB and Firewire drives, except eSATA is much faster. The biggest drawback to using eSATA devices is that they must use external power (connected to a power outlet).

    eSATA options:

    • Check your computer for an eSATA port, which will probably be labeled. The port will most often be in the next to the other ports, but sometimes it could be in the front. The port is small and rectangular, about the size of a USB connection, but a USB cable will not fit into it.
    • Install an eSATA expansion card. Purchase a card that’s compatible with the available expansion slots on your motherboard (most likely PCI or PCI Express). Disconnect power from your computer, then open the case. Insert the expansion card into an available expansion slot, then close the case and reconnect power. Install any drivers that came with the card.
    • If you have a laptop with a PC Card or ExpressCard slot, you can install an eSATA card into the slot to gain an eSATA port. Install any drivers that came with the card, and the port will work.

    Install an eSATA port bracket or a media dashboard into an available front drive bay (such as the bays that hold your CD/DVD drive). Media dashboards can include a memory card reader, headphone and microphone jacks, additional USB ports, and an eSATA port. These expansion devices connect directly to the motherboard. See the device’s documentation for full installation instructions.

  • How do I install a SATA controller card into my computer?

    Note: These instructions assume you are installing your SATA controller into a computer with PCI or PCI Express slots.

    Warning: Always disconnect power before opening your computer case and working inside.

    Caution: To avoid damaging components with electrostatic discharge, wear a grounding strap whenever you work on internal components.

    To install a SATA controller card:

    1. Purchase a SATA card that's compatible with the available expansion slots on your motherboard (most likely PCI or PCI Express) and suits your needs. If you need to connect internal devices (such as SATA hard drives or CD/DVD drives), get a SATA card with internal ports. If you need to connect external devices (such as portable hard drives), get a card with external ports. Some cards even provide both.
    2. Turn off your computer and unplug the power cord from the back of the computer.
    3. Open your computer case.
    4. Insert the expansion card into an available PCI or PCI Express expansion slot. Make sure the card is firmly seated in the expansion slot.
    5. If you need to connect internal drives to the SATA controller card's internal ports, connect them now. If you need to connect external devices to the SATA controller's external ports, you can connect them later.
    6. Close your computer case and reconnect power.
    7. Install any drivers that came with the card.
  • When I try to install the drivers for my DX-EF101 in my Windows 2000/XP/Vista I get an error message about Windows 98/Me.

    The drivers that come with the DX-EF101 are only for Windows 98 and Me. For Windows 2000, XP and Vista, the product is Plug & Play (you connect it to the USB port and it's ready to be used).

    You can check for proper installation by going to My Computer. You should have a 3 1/2 Floppy Drive. Just stick a Floppy disk in the drive and double-click the icon.