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Step 2: Physical Installation
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To install an expansion card successfully, you need to take steps to avoid damaging the card, the motherboard, or both This means knowing how to handle a card and avoiding electrostatic discharge (ESD) or any other electrical issue You also need to place the card firmly and completely into an available expansion slot Optimally, a card should always be in one of two places: in a computer or in an anti-static bag When inserting or removing a card, be careful to hold the card only by its edges Do not hold the card by the slot connectors or touch any components on the board (Figure 52) Use an anti-static wrist strap if possible, properly attached to the PC If you don t have a wrist strap, you can use the tech way of Figure 51 avoiding ESD by touching the power supply after you remove the expansion card from its anti-static bag This puts you, the card, and the PC at the same electrical potential and thus minimizes the risk of ESD Modern systems have a trickle of voltage on the motherboard at all times when the computer is plugged into a power outlet 7, Installing and Troubleshooting Power Supplies, covers power for the PC and how to deal with it in detail, but here s the short version: Always unplug the PC before inserting an expansion card! Failure to do so can destroy the card, the motherboard, or both It s not worth the risk! Never insert or remove a card at an extreme angle This may damage the card A slight angle is acceptable and even necessary when removing a card Always screw the card to the case with a connection screw This keeps the card from slipping out and potentially shorting against other cards
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5: Installing Internal Devices
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Also, many cards use the screw connection to ground the card to the case (Figure 53) Many technicians have been told to clean the slot connectors if a particular card is not working This is almost never necessary after a card is installed, and if done improperly, can cause damage You should clean slot connectors only if you have a card that s been on the shelf for a while and the contacts are obviously dull Never use a pencil eraser for this purpose Pencil erasers can leave behind bits of residue that wedge between the card and slot, preventing contact and causing the card to fail Grab a can of contact cleaning solution and use it instead Contact cleaning solution is designed exactly for this purpose, will clean the contact nicely, and won t leave any residue You can find contact cleaning solution at any electronics store A fully inserted expansion card will sit flush against the back of the PC case assuming the motherboard is mounted properly, of course with no gap between the mounting bracket on the card and the screw hole on the case If the card is properly seated, no contacts will be exposed above the slot Figure 54 shows a properly seated (meaning fitted snugly in the slot) expansion card
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Step 3: Device Drivers
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You know from the Essentials course that all devices, whether built into the motherboard or added along the way, require BIOS For almost all expansion cards, that BIOS comes in the form of device drivers software support programs loaded from a CD-ROM disc provided by the card manufacturer Installing device drivers is fairly straightforward You should use the correct drivers kind of obvious, but you d be surprised how many techs mess this up and, if you re upgrading, you might have to unload current drivers before loading new drivers Finally, if you have a problem, you may need to uninstall the drivers you just loaded or, with Windows XP, roll back to earlier, more stable drivers
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