Datasheet

Principles of Laptops and Portable Devices
69
Disassembling a Notebook PC
There are many designs of notebook PC cases, and each one disassembles a little differ-
ently. The best way to determine the proper disassembly method is to consult the documen-
tation from the manufacturer.
Some models of notebook PCs require a special T-8 Torx screwdriver. Most PC toolkits
come with a T-8 bit for a screwdriver with interchangeable bits, but you may find that the
T-8 screws are countersunk in deep holes so that you can’t fit the screwdriver into them. In
such cases, you need to buy a separate T-8 screwdriver, available at most hardware stores or
auto-parts stores.
Prepare a clean, well-lit, flat work surface, assemble your tools and manuals, and ensure
that you have the correct parts. Shut down the PC, unplug it, and detach any external devices
such as an external keyboard, mouse, or monitor.
Many laptop manufacturers will consider a warranty void if an unauthorized
person opens a laptop case and attempts to repair a laptop.
Removing and Replacing Disk Drives
Accessing the hard disk drive usually involves lifting the keyboard or removing it entirely.
The hard disk typically has a ribbon cable made of thin plastic; be very careful when detach-
ing it so you don’t bend or break it. The hard disk also usually has a power connector that is
smaller than that of a typical hard disk in a desktop PC. After you disconnect the hard disk,
remove the screws holding it in place and lift it out.
The procedure for removing the floppy disk and/or CD drive varies widely
depending on the model. Some notebook PCs are fully modular, so that the floppy
disk and CD drives pop out easily without any tools. On other models, you may need
to completely disassemble the PC to access them. Consult the documentation from the
manufacturer.
After you remove the old drive, insert the new one in the same spot and secure it with
screws. Then attach the power cable and ribbon cable, and reassemble the PC.
Adding Memory
Most notebook PCs have a certain amount of memory hard-wired into them that you can’t
remove. They also typically have a memory expansion slot into which you can insert a single
circuit board containing additional RAM.
If such an additional memory module has been installed, you can remove it if desired
(perhaps to replace it with one that has larger capacity). Most notebook PCs have a panel
on the bottom held in place by screws. Remove this panel to expose the memory expan-
sion slot. Then gently pull out the existing RAM module, if necessary, and insert the new
RAM module.
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