Question about IBM ThinkPad T21 Notebook

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Laptop won't boot

When I try to start my IBM T21, I get nothing but a millisecond green light on my hard drive icon on the keyboard. I've tried with and without a battery, and have tried a different DIMM. Could this be my CMOS or maybe the MB gone bad (the battery does charge)? Thank you...

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  • 78 Answers

This could be an indicator of one of two things: 1. Bad motherboard 2. Short circuit. If you can, disconnect the CD-Rom drive, hard-drive AND the keyboard if possible. If you turn the laptop upside down you can normally see the screws relating to each of these components. Do one at a time and test to eliminate them. M

Posted on Aug 21, 2007

  • Brykx Sep 06, 2010

    Try to hold the "Fn" key then press the power button

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1 Answer

Need info about series


The type of drive is IDE and 2.5- Inch for all those models.

T20, T21, T22, T23 --- 2647 all use the same IDE type of drive.

These you can buy for example in ebay. Search for laptop hdd ide 2.5inch or similar.

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check in bios is your hard drive visible and check boot options. If hard drive is visible try to install operating system.

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| | Installing this wireless adapter couldn't have fried the motherboard, right? ||I would not have thought so .. the software may have caused an issue --- as the PC boots tap F8 you should get a menu - choose "last known good configuration" ---- if that does not work, reboot and again tap F8 as it boots and this time choose safemode - then see if you can restore start>programs>accessories>system tools>system restore> choose a date to before the data you installed the wireless adapter software

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1 Answer

The motherboard in my t21 2648 has died. The hard


Dear I have one IBM T21 laptop,last few months Laptop not working,when I given a laptop technician,he told me motherboard power ic(switching ic)is faulty.Iam staying in Kuwait..but that IC not getting at market..so please gude me where I can get this IC or any equlent is avaliable please inform me.
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my e-mail ID:[email protected]

Dec 23, 2009 | IBM ThinkPad T21 2648 Notebook

1 Answer

How large of a hard drive is supported on the ibm t21


The ThinkPad T21 is a laptop with a single drive bay.
You cannot setup this laptop with two hard drives in any RAID configuration.
You can add an external USB hard drive and copy/backup data to this hard drive.
OR
You can connect this laptop to a network and copy/backup data to another computer/server on the network.

Mar 16, 2009 | IBM ThinkPad T21 2647 Notebook

1 Answer

Ibm thinkpasd T21 wont boot


You will need to do a system repair with your recovery or operating system disc. If the repair won't take, the reformat the hard drive and install a new operating system. If the hard drive will not format, or you have any issues during or after the install, then the hard drive has failed and will need replaced.

Aug 27, 2008 | IBM ThinkPad T21 Notebook

1 Answer

My ibm wont start up??????


The problem is going to be with either the operating system or the hard drive, and you will need an operating system disc in order to solve this problem. After acquiring an operating system disc you can try an operating system repair. If the repair doesn't take, then try to reformat the drive (NTFS) and install a fresh version of the operating system. If you have any problems during or after the format and fresh install, then the hard drive has failed and needs replaced. A hard drive failure is the most common with this type of problem, but occasionally the operating system will glitch and cause it. Either way you will need an operating system disc if you plan on fixing this yourself.

Jul 23, 2008 | IBM ThinkPad T21 Notebook

2 Answers

IBM T21 doesn't start


try to start it with the battery out by pluging it straight, the battery is dead and its causing problems

Mar 13, 2008 | IBM ThinkPad T21 2647 Notebook

3 Answers

IBM T21


i have the same problem. actually its a common problem for many T21 and other old IBM laptops.
i searched that you have to take all power (batery, adaptor)
press the power 10 times and press it for 30 secs then reinsert the battery or adaptor and try to power it on.
they say its done to discharge a certain capacitor that got overcharged after overcharging the battery.
that worked for me before but now my T21 wont start any more with this process.

May 20, 2007 | IBM ThinkPad T21 Notebook

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