Question about IBM ThinkPad R40 2722 Notebook

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IMB T40 All indicator lights are flashing. Black screen and will not power up. Have tried a new battery. Soon as power button is pressed all indicator lights flash.

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Re: IMB T40

Try this: Turn off the computer. 2. Remove the battery pack. 3. Connect the ac adapter.
NEXT:Turn off the computer. 2. Visually check each piece for damage. Replace any thing damaged . 3. Remove or disconnect all of the following devices:
a. Non-ThinkPad devices
b. Devices attached to the port replicator
c. Printer, mouse, and other external devices
d. Battery pack
e. Hard disk drive
f. External diskette drive
h. CD-ROM and diskette drive in the Ultrabay
i. PC Cards
4. Turn on the computer. It should still be plugged in
5. Determine whether the problem has been solved. 6. If the problem does not recur, reconnect the removed devices one at a time until you find the failing unit. 7. If the problem remains, replace the System board .

Posted on Dec 10, 2007

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Re: IMB T40


You have to open the Notepad coz this was the dusting problem in it...

Posted on Dec 10, 2007

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Gateway NV5378u lap top, brand new battery installed and status says 100% charged. When I unplug the computer it shuts off as if there is no battery. Could the new battery be defective?

There are a few things to check. The LED lights can tell you a lot. This will tell you more about the battery:
  1. On the taskbar, double-click the power cord icon or battery icon to open the Power Meter dialog box. Note: If the power cord icon or battery icon does not appear on the taskbar, click the show hidden icons button.
  2. Press Fn+STATUS to view the power status box, which opens in the upper-left corner of the screen. The power status box shows the current power source, the battery charge level, and the power management mode.
  3. Look at the battery charge indicator (if applicable).
    • LED green - Battery is fully charged.
    • LED orange - Battery is charging.
    • LED blinking red - Battery charge is very low.
    • LED solid red - Battery is malfunctioning. Note: This LED only lights up when the notebook is connected to AC power.
  4. Press the battery meter button on the battery. The battery meter lights indicate the percentage of battery charge remaining.
  5. Wait for a Low Battery warning message to appear.
If your battery charge indicator displays what looks like an inaccurate charge, you may need to recalibrate the battery.

To recalibrate the battery as mentioned, try this:
  1. Connect the AC adapter and then turn on the notebook.
  2. As soon as it starts and you see a startup screen, press the F2 key.
  3. In the BIOS Setup utility, use the TAB key to select the Advanced menu.
  4. On the Advanced menu, select Battery Auto Learning, and then press the SPACEBAR to select Enabled.
  5. Use the RIGHT ARROW key to select the Exit menu. On the Exit menu select Exit Saving Changes, and then press ENTER.
  6. At the Setup Confirmation prompt, select Yes, and then press ENTER.
  7. The battery recalibration process begins and a screen opens showing you the progress.
  8. When the recalibration has finished, and the message "Press [Esc] key to exit" appears, press Esc. The battery charge indicator now displays an accurate battery charge.

Hope this helps!!

Oct 20, 2013 | PC Laptops

2 Answers

My 1501 Dell Inspiron turns on but I have a blank black screen. The only light that shows is the power light on the upper right side of the laptop.

Power getting to the laptop. Try first to see if this will give a screen image on an external monitor, listen for the sound of the cpu fan, hard drive and DVD rom drives clicking, see if the DVD rom drive will open if pressed.

Then remove battery and AC adaptor, press the power button for 30 secs, refit mains only and try this on mains supply (no battery)

If this fails to boot, check the light on the ac adaptor is a steady green, flashing green indicates power is not fully reaching the laptop (motherboard problems)

If it is steady and the LED power light on the laptop is steady, suspect the DC jack socket. If this feels loose or sloppy, it will need replacing, depending on the type fitted, it may be soldered onto the board, or a wired connector, which sometimes goes bad.

After that, I'd suggest that a capacitor has gone on the actual motherboard and you will need to strip the laptop to check it.

Jul 18, 2011 | Dell Inspiron 1501 Notebook

1 Answer

Hello I have an IBM T40 and I have a problem. when I connect the power cord , the battery LED lights that stay lit orange. I press POWER button and will not start. only hear a noise and flashing orange...


Remove the battery, and unplug the A/C adapter and hold down the power button, for 40 seconds.Soon your laptop will reset,and run well.Now you will install all the accessories and start.

Hope this helps you.

Feb 25, 2011 | IBM ThinkPad T40 2373 Notebook

2 Answers

My IBM T40 boots to a black screen with the "z"(light at top to right of power.

Try these steps:

1. Remove battery and unplug AC adapter
2. Press power on button for 30 seconds or so (one min is also too)
3. Attach battery and plug into wall
4. Power "ON" as normal

If you are still getting the "Z" and a black screen then I would have the video card or hard drive looked at and replaced. Start with the video card and then look at the hard drive


Feb 17, 2010 | IBM ThinkPad T40 2373 Notebook

1 Answer

"z" light comes on, then battery charge indicator -Doesn't start!

If there no indicator of power on the laptop , There could be two problems either the AC adapater is bad or the motherboard connector pin or board is faulty.
If you see power light activity , but the screen is blank. try connecting an external monitor to the laptop. Press the Fn+ F8 key to toggle the screen to the external display. If you see the display on the external screen then the LCD is bad . Otherwise its your video card.

Thanks for using fixya

Aug 14, 2009 | IBM ThinkPad T40 2373 Notebook

1 Answer

IBM T40 the battery is fully charged but will not power on with the ac

Have you disabled your battery
is your battery showing
check control panel\power options
does your battery show as 100 % charged
then you can also check device manager for battery
Let me know

Jan 29, 2009 | IBM ThinkPad T40 2373 Notebook

1 Answer

How to use the S view port - switch monitor

Press the blue FN button and one of the F1-F12 buttons. It should show two screens. Also make sure you have changed the display settings in windows. Under the advanced Tab check the box that says "extend my desktop to this screen" after selecting the 2nd screen in the window above it.

Aug 19, 2008 | IBM ThinkPad T40 2373 Notebook

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