Question about IBM ThinkPad T40 2373 Notebook

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Ibm t40 hi,i have ibm t40 laptop.now it has not display.when i pressed the power botton then fan is moving and but no display what is the problem? plz any idea for me.i am waiting your good answer.

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Two of the most common problems you can check yourself are a bad battery or a bad memory chip. First try starting the machine without the battery, AC only. Then remove the memory and try starting with one or the other chip in, rarely do both chips go out at the same time. If neither of these work, then I'm afraid the problem will be with the motherboard, most likely the power management chip. If this is the case you will need to take it in for a professional diagnostic. They will be able to tell you exactly where the problem is on the board and whether it's a replaceable component.

Posted on Jul 20, 2008

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IBM T40 boots up with no screen display


Hi ,
1st- How old is the notebook , 2nd - do you still have the manual for this notebook , sometimes there is a fuction button you can press to shut off the display , normally its the F1 Through F12 keys but there also might be a fuction key you have to press with the F1 button , let me know if this works , i'll be waiting .........goodluck Roy

Oct 30, 2012 | IBM ThinkPad T40 2373 Notebook

1 Answer

I have 2 ibm thinkpads t40, on one of the systems the lcd inverter and screen get no power but when i take the lcd and connect it to the 2nd ibm tkpad it works fine, What would be wrong with the one lap...


On the second Thinkpad laptop, that doesn't show a display with an LCD screen.
Plug a VGA monitor into the VGA port on the back of the laptop.
Hold the Fn key down, tap once on the F7 key (Toggle your display over to an external monitor)

Give the VGA monitor a few seconds to come on. (It's a VGA monitor)

Do you have a display on the external monitor? No? You May have a bad GPU then. (Graphics Processing Unit,

http://en.wikipedia.org/wiki/GPU )

Fix? Change out the motherboard. Possibly Ebay has one, dunno.

VGA monitor has a display? Then you may have a bad Inverter. The Inverter provides power for the LCD screen. Inverters go bad.

Are both Inverters the same? (Laptop to laptop)
BE SURE. The Inverter MUST match the LCD screen!
Check the numbers on both Inverters. If they are the same, switch the good one over to the 2nd laptop. See if you have display now.
No?
Then it's the GPU.

Service Manual for IBM Thinkpad T40,

http://tim.id.au/laptops/thinkpad/T40-T40p-T41-T41p-T42-T42p.pdf

Copy and paste the above link into your Address bar. Press the Enter key. (I don't post direct links that you just click on. I want the asker to be able to see where the link takes them, by looking at the link. I feel it helps make the asker more comfortable with my solution, knowing I have their best interest in mind.
Regards,
joecoolsvette)

(If this link doesn't work for you, come back, and let me know)

Nov 20, 2009 | IBM ThinkPad T40 2373 Notebook

1 Answer

IBM T40 2373 display cuts off.


When it cuts out can you still see the display very faintly or does it just go completely black?

Mar 10, 2009 | IBM ThinkPad T40 2373 Notebook

2 Answers

IBM ThinkPad R40 No PowerUp


If the the ram is the problem of your system, there should be a power on light on the system. indicating that some of the component of the system is not working correctly. But since you mentioned there is no light, it is the possibility that the problem is the motherboard itself.

Feb 26, 2009 | IBM ThinkPad R40 2722 Notebook

1 Answer

IBM T40 screen not working!!!! Please Help Me!!!!


check the display on external monitor, through the vga port of your laptop if the display is there then its the problem of your screen, some times this happen due to non working of the cable that gives display to the screen , its better check it by some technician

Nov 03, 2008 | IBM ThinkPad T40 2373 Notebook

1 Answer

Thinkpad T40 2373 fan replacement: long or short?



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Condition: Used
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s.gif s.gif IBM THINKPAD T40 T41 T42 CPU Short Cooling Fan FRU 91P9759 91P8393 this is the fan you need. please remember to rate the solution. will send you a link to my site with the how to disassemble and reassemble

Apr 09, 2008 | IBM ThinkPad T40 2373 Notebook

2 Answers

T40 Monitor Display


I assume you are running window XP or vista?
Go to
Start>Control Panel and look for Power Saver, or Screensaver options. There will be settings there for determining how long, if at all, your display will take to turn off.

Nov 15, 2007 | IBM ThinkPad T40 2373 Notebook

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