The battery lights come on when you turn on the power but screen stays black and has 3 or 4 beeps
SOURCE: No LCD Display, Does not Boot
I would check the power adapter with a multimeter first thing.
SOURCE: troubleshooting
OK
You will need to reset the BIOS in this computer.
When you remove the battery from the back of the computer you should see a little yellow disc about the size of a nickel. It is thje BIOS battery and it is in a plastic frame that is held in the computer with 1 screw in the corner. You need to remove the screw and then lift the free side of the battery holder and slide it towards the center of the battery box. This will unplug the wire that runs from the battery into the computer. Leave it out for about 1 minute and then slide it back into position, allowing it to plug the wire back into its socket.
Then put the screw back in and insert the mail battery back into its compartment.
Now when you turn it on it will pop up a message telling you the clock is wrong. reset it to the right time and follow the prompts to reset the BIOS. Make sure that you have the boot sequence set to boot from the CDROM ahead of the Hard drive, or you won't be able to load the OS disc.
Good luck.
I just put a new hard drive in one of these last week and it gave me a bit of a start when it wouldn't start right up.
This fixxed it right up though.
SOURCE: Thinkpad T20 no boot
The ThinkPad T20 overcharge the capacitors and this is why do not start even when the lights are on.
To fix the problem, disconnect the ac adapter and hold the on / off button for about 60 seconds. After that, reconnect5 the ac adapter and turn on the computer.
SOURCE: T23 wont boot
having same issue. how much memory (ram) do you have installed. this model t23 (2647) can only have 256MB DIMM per slot - total 512MB (although it can handle 2X512MB DIMM's) i'd try booting with only 1 256MB DIMM and if sucessful had the other.
SOURCE: T40 starts bootup, beeps five times and stops.
Probably memory. Check you manual for the POST codes.
114 views
Usually answered in minutes!
×