Dell Latitude CPX - Notebook Repair Manual

Disclaimer This information is provided as an "At Your Own Risk" procedure. I can not absolutely assure that it is safe for any or all equip

The hard drive caddy is pulled and slid outwards until it is free from the laptop assembly. The next thing that needs to be done is the removing of

The keyboard is then lifted upwards and out of the main laptop assembly, except for 2 thin connection cables. The keyboard can then be lain perpendicu

The cable can then be pulled from the connector.

Step Two Taking it apart, continued. The rest of the disassembly process. The next thing that needs to be done is removing of the palmrest. (Thi

Now the latch pictured here must be released from its hold on the bottom of the case. I used a small flat screwdriver to gently pry it back while ea

The official repair manual for this laptop stated that the display must be removed before the palmrest can be taken off. But, as you can see, for any

After these screws are removed, the screen can be lifted straight up and away. The motherboard is the next part to be removed. This model has 2 s

* For this model, these are the only screws that need to be removed on the motherboard! There are other screws which may look as though they need to b

The motherboard is now released from the bottom of the case and the unit is placed in its normal position on a flat surface. Applying a steady ge

And then it can be lifted straight up and away from the bottom of the unit's case.

¾ Thieves steal according to opportunity, and even if they are aware that a laptop might be protected by a password, they will likely steal it anyway

Step Three Reorienting things just a tad. In order to clear the password on the chip, some of the laptop must be put back together. This is becau

Up to this point we have something that looks like this: Now the palmrest is be put back on.

The video connector is plugged back in. And the palmrest connector is also plugged back in.

The keyboard is also reconnected. The smaller Keyboard cable is slid back into its connector, and is held fast by closing the connector as shown is

And finally, this one screw is used to hold the keyboard in place while the work of clearing the password is performed. Now the laptop is ready t

Now, you are probably thinking to yourself 'Wait a minute! I just put almost the entire laptop back together! The wascally wabbits that made thi

The paperclip is then unbent and, stripped of its paper-clipping function, is reformed into a totally new implement which looks like this: Next,

A closer look. And the best shot I could take showing its location.

Now that the chip has been located, a closer look must be taken at the actual chip itself. This is both because this procedure will involve working

You can use the direction of the writing and / or the location of the small indented spot shown in the bottom left hand corner of each chip to identif

Introduction An explanation of what's going on with the laptop. This is the prepatory section where I explain some things about the chip, CMOS

The laptop will turn on, and a screen like this should appear. Fn-X may be pressed if desired. Also, setup may be entered by pressing F2. And the pa

Also note that all system passwords have been cleared. But you can not use the password feature anymore, because the chip has been cleared of its i

Afterwards So, now you want your own password. This page will show how a new password can be set and everything returned to normal. Now that the

It also contained 3 other pieces of information, which are referred to as 'Tags.' * As far as I know, these tags are only used for dell lap

Remember, this can only be done once without clearing the chip again. Once the Service Tag is in place, the BIOS setup can be entered, and a primary

The CD or DVD drive is removed by pulling on this handle (which may be held in by a screw.) The hard drive cover is locked in place by a double loc

Removing the hard drive will prevent any erroneous information that may develop while working with the chip from causing a password to appear

(However if working conditions require it, it is possible to remove the entire keyboard by disconnecting 2 ribbon cables that plug into the main circ

From here the chip may be accessed in somewhat cramped conditions if further disassembly is not considered prudent. (Further disassembly shown farthe

The blue arrows indicate screws that must be removed. The red arrows indicate the location of latches holding the cage onto the motherboard which ar

If a certain laptop does not correspond to any of these diagrams, more information might be found on the web, or, anyone not reading for informational

The cage can then be lifted up like this... and then finally pulled out, revealing the chip The following 2 pictures show the location of the

As show here, the chip can easily be accessed and jumped. This arrangement also offers the best chances for removal and replacement. (Actua

Latitude C400 Short circuit the the marked pins red or purple on 24c02 during booting. If this don´t work, short direct after you pushed power. If

Latitude C600 / Inspiron 4000 The Chip is on the bottom side of motherboard, under the PCMCIA card slots. Short circuit the 24C02 chip during booti

Latitude C610 / Inspiron 4100 The chip is located on the underside of the laptop. (the bottom) It can be accessed by removing the RAM memory cover, a

Latitude C640 /C540 Inspiron 4150 The Chip 24c02 24c04 or 24c05 is on the bottom of the motherboard just to the left of DIMM 1. Short the marked pins

Inspiron 8500 / 8600 / Latitude D800 Precision M60 The chip (24u04) is located on top of the motherboard under the hard-drive caddy approx 50mm i

Latitude D400 Short circuit the 24c04 or 24c05 during booting

Latitude D410 Chip is next to WLAN modul. Short pin 3 and 6, when the machine give's first sight of dell logo

Latitude D500 / D505 Latitude D510 Short circuit the 24c04 or 24c05 during booting and release when the cursor at the display flashes. If this d

Latitude c610 Yes Yes Picture included. Latitude c640 Yes Yes The Chip is on the bottom of the motherboard just to the left of DIMM 1. L

Latitude D600 / Inspiron 600m Take out the hdd. Short circuit the 24c04 or 24c05 during booting and release when the cursor at the display flashes

Latitude D610 Chip 24c04 or 24c05 is beside modem compartment at the backside. Short pin 3 and 7 wile booting. Sorry for the bad Photo. If you hav

Latitude D810 Take out the hdd. Short circuit the 24c04 during booting.

Inspiron 3500 Short circuit the 24c164 chip during booting. If this doesn’t work, desolder the backup battery and waited 30 min and it erased the c

Inspiron 1200/2200/ Latitude 110L Short the 24C04 while booting. If the red jumper don´t work because it´s a different chip, try the other short p

Inspiron XPS Gen2 / M170 / 9300 The chip (C24O4N) is located on the bottem of the laptop right next to the two DIMM slots. short the pins (3 and

Latitude X1 Short the 24C04N while booting.

Latitude CPIA The chip on this model is located under the processor itself. The only method I have been told of, (as I have not had a chance to work

Latitude CPIx Latitude CPX

Latitude L400 As you can see from the above picture, the Latitude L400 comes in a thin leather case. It is quite stylish, save for the fact that the

Inspiron 2650 ? not tested no Info Inspiron 510m Yes Yes 24c04 eeprom is under a piece of black sheet under the pcmcia socket Inspiron

A password screen locks us out of the laptop. But not to be defeated, we just get out our tools. This laptop is rather easy, and only requires the r

This slide plate just above the keyboard needs to be pushed towards the left. It may help to lift up on the right side slightly while pushing it

Now the single keyboard connector is removed and the keyboard is pulled off the unit. This connector is one of the ones that can be taken off and

The CMOS battery is held onto the motherboard by a sticky glue. A flat tipped screwdriver or other prying device is used to gently pry it upwards

The pernicious CMOS battery is held victoriously. This is it. The final, last part of clearing this laptop. After waiting about five minutes, it ca

Extraneous Some unnecessary information about the chip. This page is dedicated to somewhat trivial information about the 24C02 non-volatile RAM chi

I have seen and heard about people who offer to sell new blank 24C02 chips to people, so they can unsolder their old one, and then re-solder

and then hoping that it works. Now, if someone really does need a chip, (If this pertains to you, I'll bet you wish you hadn't been so ha

I saw one on a DVD decoder card, (hmm...) and I heard about a similar chip (24C16) being in a satellite receiver box. (I wonder what they could be do

The information in the chip can be read / written with a special device called an EEPROM reader or programmer; or a PICprog (Programable Integrated Ci

Inspiron 1100 Yes Yes Chip is on the bottom of the board. 24c168 is near the B ram connector Inspiron 1200 2200 Yes Yes Picture included. Inspiron

* NOTE: There are a few things that should be addressed before you continue... I will list them quickly here. Some of these laptops may have an add

(Remember that SIMM / DIMM memory modules / sticks are always extremely susceptible to ESD damage at any humidity, under any environmental conditions,