Data bus that lies between the RAM and the bottom of the keyboard got snapped while trying to upgrade the RAM. This is the cable that connects touch pad and other LEDs on the front panel. Is it possible to buy this part and replace on my own? If so, where would i get the part number?
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Dell BIOS Beep Codes: Beep Codes Possible Causes Corrective Action 1 - 2 No video card detected Reseat the video card 1 - 2 - 2 - 3 BIOS ROM checksum error 1 - 3 - 1 - 1 DRAM refresh error Reseat the memory modules 1 - 3 - 1 - 3 8742 Keyboard Controller error Reseat the keyboard connector 1 - 3 - 3 - 1 Memory defective or not present Reseat the memory modules 1 - 3 - 4 - 1 RAM failure on line xxx Reseat the memory modules 1 - 3 - 4 - 3 RAM failure on data bits xxx of low byte on memory bus Reseat the memory modules 1 - 4 - 1 - 1 RAM failure on data bits xxx of high byte on memory bus Reseat the memory modules
It is hard to tell if the touch-pad needs replacing from the information you gave. However, I can tell you that the touch-pad is NOT part of the keyboard.
There are several things the can cause the touch-pad not to work. 1) It may have been turned off in the BIOS. 2) It may have been turned off by the operating system software or 3) You may have installed a usb mouse which in some cases will override the touch-pad. 4) The touch-pad may have a bad connection into the motherboard or into the touch-pad circuits.
I wouldn't go replacing the pad until I had tried all the other possible areas because this requires a complete screw removal from the bottom, removing the display and keyboard. Then removal of the upper case of the laptop. I do this as a last resort.
Ok the RAM location is actually underneath the touch pad on the top of your keyboard. However, to get to the memory area where you can add/remove RAM cards you need to do the following:
STEP 1) On the botton the latop you should see 4 screws that have a "memory chip" ICON. These are the 4 screws you want to take out. (important note: my T60 has 4 screws with this icon, yours might have 5). Please the screws somewhere secure so they are not lost.
STEP 2) After you take out the screws noted in step 1. Flip your laptop and open it up as if you were going to type something.
On each side just below the keys pull up gently and the botton portion that has the touch pad will come up. You want to pull it back towards you. You won't be able to complete remove it away from the laptop, because there's a ribbon cable connecting the touch pad. So just move the piece back toward you out of the way (in essence peeling it back toward you).
STEP 3) You should now see the RAM card(s) they will have a bracket mechanism on each side of the RAM card, push them outward to unlock the RAM card (if your removing.
STEP 4) If your ADDING RAM. Evaluate if you need to remove existing cards or not. To install RAM you insert the new card in the slot, then push it down and it should snap int place.
STEP 5) Place the touch pad plate back into position and push it to snap down.
STEP 5) Close laptop cover, flip over and insert the screws back into their positions.
You need to remove all the screws from the back also, then remove the cover to the rear on the bottom and remove the wireless card (make note as to connection colours) and there is 2 (I think) screws under there, then one also under the battery, then the whole top opens up.
Make sure you have removed all screws from the bottom case, including the four under the rubber feet at the rear.
This was the most awful laptop I have ever worked on!
The official upgrade slot is located on the bottom of the laptop and is easy to find. Just unscrew the small cover and there it is.
The other slot requires you to unscrew the two screen bracket screws. Once you have done this, between ESC and F1, F4 and F5 and F12 and PrtSc there are small plastic rings. Put a biro nib into these and pull down. They will pop down. You can now remove the plastic cover. Unscrew the two screws marked "L9" on the bottom of the laptop which are located at the top of the memory cover. Now you can remove the keyboard. Underneath the keyboard is the second RAM slot. The SiS 650 chipset supports a max of 1GB per memory slot and since this laptop has two slots that means 2GB of RAM. I've used Kingston DDR400 PC 3200 SODIMMS.
You can also upgrade the CPU - the fastest CPU available is the Pentium-M 2.6GHz. Nothing faster will work - trust me on this. It must be a Pentium 4 Northwood architecture CPU with a 400MHz FSB. Standard P4 Northwood CPUs with the metal shim won't fit - unless you know a way of removing the shim without destroying the CPU. Best to stick with a Pentium mobile (Pentium 4 M) chip. Look on Ebay for these.
Of course the hard disk can also be upgraded - a 200GB 7200RPM 2.5" drive works a treat. Non SATA of course.
You can add wireless and USB 2.0 using PCMCIA carbus cards. I use a StarTech 54mbps wireless card with the RAlink chipset and a NEC USB 2.0 card with 4 USB ports. Both cards fit in at the same time.