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You'll need to
find out which screws hold the keyboard in. Usually three or four and
are on the bottom of the laptop. After unscrewing them you'll have to
pry off the plastic part (carefully) that is just under where your
laptops screen is. Then you will see two, three, or four screws that
hold the keyboard in. Unscrew those, then gently lift up the keyboard
and you should see a small round button battery somewhere on the exposed
part. That is the CMOS/BIOS battery. (Note you might have to take more
screws out on the back if the battery is hidden under a part, but
usually it is visible and you can get to it) remove that battery for 1/2
hour or longer, and put it back. This usally will reset the bios and
its password. Also note tho, that some newer boards that won't work on,
and you'll need to buy software especially for reseting the password in
the BIOS. Youtube has some 'videos' that advertise those softwares. Try
the battery thing first tho. If uncomfortable doing that first part to
get to the battery yourself, you will want someone who knows how to take
apart a laptop to do it for you.
write it down all the bios settings. and remove laptop keyboard by removing screws back side of the laptop (small embosed picture indication remove those screws) and just lift the keyboard and search for cmos battery, see below picture , just unplug the battery and keep unpluged for minuite or two. and connect the battery. fit all the opened cover and restart . best of luck
This is a common problem with IBM Thinkpad T40, T41, and T42s. They develop video issue due to over heating. If you want a temporary solution put some pressure the mouse buttons just below the keyboard and right above the touch pad. Press firmly with your palm when you start the laptop and the display should come back on. Or hold the laptop with your four fingers underneath and thumb on the mouse pad and lift it up so that there is pressure at the point where your index & middle finger are. This will improve the contacts of the chip that is causing the graphic card to malfunction.
We fix these issues all the time. However, it is not something fixable by the end user as it needs professional repair equipment and expertise to get the job done right as it is motherboard level repair.
The cost of this repair is relatively cheap now for IBM T40/T41/T42. It should cost you roughly $80 to $120 to get it fixed (in metropolitan area, in smaller towns repair shops will rip you off). If you are quoted more, then shop around.
We provide complete laptop repair service www.laptopmart.ca Tech tips for laptops you may find useful: http://www.laptopmart.ca/techtips.html
It's possible that this is a hardware problem, but it sounds more like a loose connection to me. Start by removing the keyboard and checking all visible connections. You should be able to see the touch pad, keyboard, and screen connections with the keyboard off, and, yes, I realize that you cannot check the keyboard connection with the keyboard off, but you can when putting it back on. For some reason I keep getting people that love to point out the obvious lately, so I'll throw that in there right off the bat. Also check the hard drive to see if it's seated properly. If the problem persists, you may need to take the cases apart and check all connections on the board.
Before getting the fan replaced you may want to try to blow the fan with an air compressed duster. Worked for me. You do not need to take the laptop apart completely. There are 4 screws that holds the keyboard in place, unscrew the 4 and you should be able to pop the keyboard out. Once the keyboard is off you should be able to clean the fan.
I have a toshiba satellite p105-s6024, and have had to take it apart multiple times. I have also taken apart the a105 series, and they both presented me with this problem. i finally found the solution when i took off the top panel that houses the power button (P105), or the panel with the speakers (A105). It can be snapped off with a small flat screwdriver at about 4-5 snap points along the border of the F-keys and the black trim of the top panel. under there you will find 3 screws for the keyboard, and four screws for the monitor hinges (2 per hinge). I hope this helps! if you need pics, i'll be taking it apart again soon, just e-mail me at cytokinesis55@Yahoo.com
If you can make the problem come and go by slightly twisting or flexing the bottom (keyboard) section of the case, you may have a loose internal connector. If the laptop has been dropped recently, more probably you have a cracked land pattern on the motherboard.