Having problems with your IBM ThinkPad R40 2681 ?

I bought a new adapter still no power.no lights to indacate power

Answers :

This sounds like a bad motherboard, possibly only the charging circuit, but still will likely require a new MB.
\015\012Given the cost of a new laptop these days it is probably best to buy a new one instead of trying to repair this one.
Repair Help & Product Troubleshooting for IBM ThinkPad R40 2681

Tips for a great answer:

- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.

Suggested Questions/Answers :

Laptop Power Issues

My probleams is when starting pc and at that moment laptop noise create so whats i can do piz given reply ... Toshiba P25-S670 Notebook

Toshiba a105, wont power up, clicking sound

I seem to have the same problem. I have an a105-4134. Ive had since June of 2006 and ive kept it clean and have replaced several components throughout its life.I was working on it few days ago until it just shut off. Confused, I press the ... Toshiba Satellite A105 Notebook

Laptop Not Getting Power

There could be a number of resons for this. Some thoughts:\015\0121) Was your laptop working fine before you bought this new adapter? Eg. did it work with the previous one.\015\0122) Are you positive that it is compatible? You should chec ... Dell Inspiron 6400 Notebook

Toshiba Satellite Laptop Power Failure (A105-S1013 System Unit)

How handy are you with a digital multimeter? If the laptop is still disassembled, find the solder connections on the motherboard where the mini power cable enters the board from the jack. Plug the AC adapter in. Check to make sure you have the pro ... Toshiba Satellite A100-S8111TD Notebook

Amilo Pi 1505 battery not charging but powering AC adaptor

... Fujitsu Siemens PC Laptops

Compaq evo n610c battery not charging

Hello All;I used to have these same problems. I replace my BIOS battery, which I know was dead, because all settings get reset when I unplug the power and remove main battery. You might not have to replace it if its still good. Back to the main ... HP Compaq Evo n610c Notebook

Acer aspire 4920 charging mechanism failed

Most laptops, as in 99%, have one board and everything is on it. They don't really have a power supply since the AC adpater provides DC voltage already. There is just a voltage divider that take the incomming voltage and changes it to the various v ... PC Desktops


This is possibly an internal power Supply fault. take the battery out, plug in the adapter, IF the unit works now, you have A: A battery problem, or B: a charging circuit problem. If the unit still fails to work, the power supply in the PC has faulte ... Dell Latitude D610 Notebook

Monitor not turn on when hooked up to power supply only

Hi...there, \015\012The AC Adapter supposed to lite GREEN not red... Try a different AC Adapter if you got one..\015\012If it still the same problem after changed another AC Adapter... Then it's your backlight inverter are busted. Need t ... Computer Monitors

Flashing icon at the top right of my Dell Inspiron 6400

The first thing I would try is to get a new power adaptor. You can find a OEM on ebay probably for about $20. Just type in your model number on the search section on ebays homepage. ... Dell Inspiron 1501 Notebook

AC Adapter is beeping

90% of the time it is a short in the Plug side of the adaptor\012check the cable for kinks. Most of the time it is the plug.\012I have cut and spliced a new or used plugs. If you cut the \012plug and some of the wire off , make sure it is ... Acer Aspire 5630-6288 Notebook

Getting hot underneth

I have seen a similar issue with a Dell Inspirion 600m, the problem with that computer was the AC adaptor for what ever reason would only power the laptop but not charge the battery. I resolved the issue by replacing the AC adaptor, with a new adapto ... IBM ThinkPad T22 2647 Notebook


Yes, more than likely you will need a new power supply. You can locate them at any computer store.\015\012\015\012I hope this solution is helpful. Please remember to rate this solution. ... Dell Inspiron E1705 Notebook

I have an advent 8315 and last week i powered on and connected to the internet when it just shut down. All lights went off and would not restart or turn on since.Have never had the battery in it use only the mains adapter. Bought new mains adapter still no lights or power. My warranty ran out a month ago and my local pc world is being refurbished. I ave no clue what to do

If you have a battery to test it with and there is still no power then a common defect is the power jack itself. You would need to have the technical proficiency to troubleshoot that circuit. If you do not have a battery to test that possibility you ... PC Desktops

My Toshiba Satellite 2415-S205 is dead as door nail, no lights, etc. I checked power supply, power jack and connection on board, all is OK. Now what, send into the shop for repair? Ted

Here are some suggestions I compiled, some you have done, thought I would throw it out there for you...\015\012\015\012 ... Toshiba Satellite 2415-S205 Notebook

I have power out of adapter but laptop is completely dead; no lights come on at all.

Laptop is dead. How to troubleshoot the problem.\015\012In this post I’ll explain h ... Toshiba Satellite A45-S150 Notebook

My acer travel mate 5710 just blipped and closed down. NOw will not even switch on. any advice how to fix? The green power light does show for one half second when I press the button but does not function to 'on' mode.

Laptop is dead. How to troubleshoot the problem.\015\012In this post I’ll explain h ... PC Laptops

Router problem. Time Warner had a internet problem last Sunday, April 26 here in the Northeast. They fixed it, but our internet still didn't function properly as it did before the TWC problem. Very slow connections and timing out most of the time. Talked to TWC tech person, and found out that internet was fine to my main computer, but when the router was hooked up the problem came back. Netgear WGR614 v4. Only thing TWC said was to try and change channel. We tried but problem still exists.

Wireless Connection Drops with Windows XP Service Pack 1\015\012 \015\012 Problem:\015\012 \015\012var js_3;function initPsDisplay(){js_3 = new PsDisplay({"info":{"controller_name":"PsDisplay","name":"PsDisplay ... PC Desktops

My hp compaq nc6400 doesn't turn on. the green

Laptop is dead. How to troubleshoot the problem.\015\012In this post I’ll explain h ... HP Compaq nc6400 Notebook

Acer will not boot up even with it being plugged in, no lights, noise, nothing

Laptop is dead. How to troubleshoot the problem.\015\012In this post I’ll explain h ... Acer Aspire 5100 Notebook

Screen went black

Plz try by resiting the ram, if the problem persist then you have problem in display adapter,send it to the vendor from whom you have bought ... Compaq Presario 700 470024-192 Notebook

My model number MX6956 MA7 I have reinstalled the laptop to when it was new, bought a new battery, bought a new power cord, and flashed the bios and after 15 minutes or so after plugging in ac power cord, the charge indicator light goes from purple to solid red. The auto-learn feature for the battery in the bios for re-calibrating the battery fails after a while of running saying, "could not get battery model".

Hi,This is a problem of most of the Motherboard on laptops, I work for dell, and some of the laptops have also this problem. But it says, battery unknown or ac adapter unknown in the BIOS, and battery cannot be charged. We usually r ... Gateway MX6956 Notebook

IBM Thinkpad T22 Battery

Did you try buyinga new battery? They only recharge so many times, you know, ... IBM ThinkPad T22 2647 Notebook

My dog chewed through the power cord on my dell D600 lap top and killed it, i bought a new power supply but it still wont start up, thinking that it may have shorted some thing out i put in a new power board but it still wont start any ideas/

Check the LED light on the Adapter , remove the battery and press the battery charge button to see if the battery has any power .If the battery LEDs turns on then the battery is charged , remove the hinge cover and press the power button using ... Dell Latitude D600 Notebook

Acer aspire 3680 laptop will not charge while plugged in wall

It appears that you have faulty laptop power connector socket.\015\012This is why it appears to work sometimes when you plug the connector into the laptop in some direction.\015\012To confirm this, wriggle the connector while you look at ... Acer Aspire 3680 Laptop
  • Start your question with What, Why, How, When, etc. and end with a "?"
  • Be clear and specific
  • Use proper spelling and grammar
all rights reserved to the respective owners || www.electronic-servicing.com || Terms of Use || Contact || Privacy Policy
Load time: 1.0306 seconds