||Here is the laptop mostly dissassembled. The
major sections can be seen here. They are from left to right; top to
1) External case
2) CPU fan and chassis
3) Drive assembly
4) Floppy drive
6) Motherboard and bottom case
7) Led indicator board (LED: Light emmiting diode, a kind of light)
9) LED housing
10) EMI Shielding for GPU (GPU: Graphics Processing Unit, AKA video card; EMI: Electro-Magnetic Interfearance, this is why sometimes your TV looks screwed up when your refrigerator kicks in, chielding helps prevent this)
Also featured in this picture, although somewhat unintentional, are the tools that I used to perform the work: A leatherman, standard screw driver set, and mini screw dirver set.
|This is the CPU used in the laptop. It is a
celeron generation 1 333-M. Celeron generation 1 is the first generation
of celerons that Intel made. They feature a 64KB L1 cache and no L2
cache. Cache is what a CPU uses to easily access sections of memory.
In a typpical compter, the memory is actually one of the slowest devices
that the CPU regularily communicates with. Cache allows the CPU to
remember the last few things that it accessed because it will probably need
these things again. Like playing an MP3, you repeat the same algorythm
for every frame of the song. There are 23.7 frames in a second. The
-M means that it is a mobile chip. Mobile chips usually under clock
them selvs to help reduce heat, and also do a lot of other things to conserve
power, such as shut down the processor for brief periods of time. I
put the pencil in the picture to give the relative size of the chip. The
black portion in the center is the actual wafer, or silicone. Everything
else is casing to allow the space for all 435 pins.
||Key components, in order of appearance, left to righ,
top to bottom:
1) Power controller
2) Monitor power interface
3) UART/EPP controller (UART: Universal Asyncronous Reciever - Transmitter; EPP: Enhanced Parallel Port, this chip runs your parallel port, serial port, Infra red dvices (if you have any), keyboard, and mouse.)
4) Monitor jack.
5) Parallel port
6) Memory (64MB)
7) Serial port
1) PCMCIA interface
2) Hard drive connector
3) CPU socket
1) Sound card, filters, and amplifier (Volume control is here also)
2) Internal mouse / keyboard connector
3) Sound controller
|4) CD-ROM / Floppy drive interface
5) CPU Voltage regulators
|The bottom side features:
1) Memory expansion module (Capable of handling up to 128MB SD-100)
1) CPU heatsink brace
2) North bridge
3) South bridge
4) PCMCIA controller
5) Audio interface jacks
1) BIOS boot rom.
2) Battery connections
||Here is the reason for my toil. The CD-ROM drive,
a 24x max cd-rom reader, and the hard drive, a 6 Gigabyte 3600 RPM drive,
ATA 33. Also, the Floppy drive is pictured here. Rest assured,
it was broken long before I started tinkering. The top shield of the
drive is in the center.
|Here is the laptop modem. It uses a connectotr commonly referred to as compact PCI, or CPCI. Many modems and laptop network cards use this same connector to interface to the laptop. This allows a manufacturer to give the option of having either a modem or a NIC for a laptop. A modem for the traveling type, and a NIC for the avid business worker. Also, since PCI is a multiple port standard, many newer mother boards have several of these connections so they can support multiple NICs, modems, or even give the user the option of what to use. The chipset is make by connexcant. This is a quite popular chipset, and is still in use by many laptops today.||
||Here are the coolant components, and bracing components
that surround the CPU to keep it cool and in place. The CPU to a computer
is a vital as the Brain is to a person. In a laptop where heat is not
as easily radiated, cooling is doubly important. This particular setup
uses a heat sink, cooling fan with temperature sensor, and a shim covering
to dissipate heat from the CPU. The shim does not cool as much as it
makes the fan more effective my directing the air flow into and out of the
laptop and across the heat sink fans (not shown). The heat sink has
a rubber like permanent potting compound to aid in heat transfer form the
CPU, note that it covers only the center area of the CPU. If you look
closely, you can see a permanent indentation in the compound from the center
of the CPU. The metal bar with the fan is to lock the heat sink down
to the CPU and provide cooling for the rest of the computer case.
|This is the Laptop Monitor. I did not disassemble
it due to the extremely sensitive nature of the monitor components, which
can break down under the the light force of a finger touch. The LED
board and LED housing reside just below the monitor and give the status of
NumLock, CapsLock, Scroll Lock, power, battery, and external power.
||The keyboard usees a modified version of the PS2 interface.
It utilizes all six pins to accomodate the mouse pointer. The
buttons are on the case and report to the computer using a seperate controller,
in much the same way that the external PS2 mouse is seperate from the internal,
yet they can all work simultaneously (for those of you who love to have mouse
and keyboard wars).
This is a standard key board and will work in most laptops that it can fit in.