Question about IBM ThinkPad T20 2647 Notebook

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What is the maxium upgrades that I can give my Thinkpad T20 Series 2647, from speed to memory and possible going from a Pentium 3 to a 4?

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You can't upgrade the processor: it's already at almost maximum and you can't change models - different socket. The maximum RAM you can install in it is 512 MB of PC100 SODIMM-SDRAM so the speed difference will be negligible.

Posted on Oct 09, 2010

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How do I remove the backup battery from my Thinkpad 2647 T23? I'm trying to remove the POP.


ThinkPad T23 2647

Manufacturer - IBM
Series - T Series
Subseries - ThinkPad T23
Machine Type - 2647

1) Remove ALL power. Remove the AC adapter (Charger), and Battery.

2) Battery removed, Battery Compartment facing you.

Look at the right inside edge. There is a small plastic cover inside the Battery Compartment.

Remove the one Philips head screw, then remove the cover.
Backup battery, CMOS battery, or RTC battery. SAME/same.
(Real Time Clock battery)

Also, here is the Service Manual,

http://www.tim.id.au/blog/tims-laptop-service-manuals/#toc-ibmlenovo

Drop down to the 8th line. (ThinkPad T20. T20 in blue)
Scroll over, and left-click right on - T23

This is a PDF file. The computer you are using now has Adobe Reader on it, which uses PDF files.

After you click on the file name, (T23), it may take up to 30 seconds, before the first page comes up.

Start on Page 66. Backup Battery is on Page 67.
OR,
In the Bookmarks menu to the left, click on -

1) The + sign to the left of -
ThinkPad T20, T21, T22, and T23 series.

2) The + sign to the left of -
Removing and replacing an FRU.
(Field Replaceable Unit)

3) Left-click right on - 1010 Battery Pack, and 1020 Backup Battery.

Nice to have when you are going to clean that puppy out.
(BUY, and wear an ESD wrist strap. Connect it's alligator clip to a good ground source.
Average price is around $3 to $6)

Also nice to have to upgrade the Processor, and a myriad of other things.

Regards,
joecoolvette

May 11, 2012 | IBM ThinkPad T23 2647 Notebook

3 Answers

I would like to nwom how much of memory this laptop support


The Thinkpad is installed with 128 MB SDRAM is standard, and is expandable to 512 MB
There are two memory slots, to expand it to 512 Mb you need two 256 Mb RAM modules and throw away the 128 Mb RAM module, but if you don't throw away this module and you insert a 256 Mb RAM module in the 2nd memory slot then your total memory would be 384 Mb.

Nov 20, 2009 | IBM ThinkPad T20 2647 Notebook

1 Answer

Laptop Not booting - No Screen


Clean your memory card, or reseat it. Clean the edge connector with soft eraser if reseating doesn't solve it. Do this when battery is disconnected, completely turn off and no other power supply is connected to it. If not maybe ram failed already. This is the first step before going to anything. For additional instructions try to find it in youtube. Post us some update.tnx

Jun 06, 2009 | IBM ThinkPad T20 2647 Notebook

1 Answer

Thinkpad T20 won't accept memory upgrade


according to ibm
you are allowed only pc100 memory with a maximum of 512mb.
when handling memory make sure you are grounded before touching any memory chips.
try getting another set of 256mb chips and grounding yourself before installing them.
Mark

May 15, 2009 | IBM ThinkPad T20 2647 Notebook

3 Answers

IBM ThinkPad T20, Intel Pentium III 700MHz Upgrade to Pentium 4?


Max CPU for IBM T20, 21, 22 is Pentium III FCPGA2 1000MHz (1GHz). Max memory is 512MB (2 x 256MB PC100/100MHz). Max hard disc is 250GB ATA. Newest BIOS is from April 2004 at the homepage Lenovo.

Nov 06, 2008 | IBM ThinkPad T20 2647 Notebook

1 Answer

Processor and Disk space


The biggest processor available for the T20 is 1ghz. Be sure when replacing the processor that you get an IBM 133mhz processor. The memory is 1g max, the machine will hold two 512mb chips, and be sure that it's PC133 memory. You can put up to a 120g hard drive in the machine, be sure the hard drive is an IDE 4200rpm drive. These are the specs for the T20, and the maximum size this machine will hold. You can go to this max or anyplace in between.

Aug 27, 2008 | IBM ThinkPad T20 2647 Notebook

1 Answer

Ibm thinkpad 2647


Your limited with the T20 series, the biggest you can go is 1ghz. Try the Pentium M chip, make sure that it's the same mhz (frequency) that's in it now, the board frequency matches the processor frequency. (either a 100 mhz or 133 mhz, you can tell by what memory it uses PC100 or PC133)

Jun 09, 2008 | IBM ThinkPad T22 2647 Notebook

1 Answer

T-20 2647 think pad


possible... run your unit in safe mode then observe it...if happens again check the memory ram... if not your hard disk is infected with virus...try scanning /cleaning drive c:

Mar 28, 2008 | IBM ThinkPad T20 2647 Notebook

1 Answer

IBM Thinkpad T20 Type 2647


I currently own 3 Thinkpad T-20 Laptops. They all have a 700 mhz processor in them, and so will yours, more than enough to run windows xp, in fact, I am running Windows XP Profession on one of them. The PC100 is the type of memory it uses, not the processor speed. i recently installed a 120 gb drive in one of them so you will have no problem installing a 20 or 40 gb drive, or larger.

Dec 08, 2007 | IBM ThinkPad T20 2647 Notebook

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