Question about IBM ThinkPad T20 2647 Notebook

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

I own a IBM ThinkPad T20, Intel Pentium III 700MHz running Microsoft Windows XP Professional, 512MB RAM and a 160GB Hard Drive. I'm wanting to upgrade my processor to a Intel Pentium 4, 1.5GHz. Is the Pentium III Processor the same size as a Pentium 4 Processor? and will it work/Read?

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  • Patrick Bridge
    Patrick Bridge Nov 06, 2008

    Is there anyway to get this T20 to read a 1GB RAM? Its manual says its max is 512MB. I also am going to get a WiFi card for it. Do you know if anyone has upgraded to a Intel Pentium 4 from a 3 on the T20? I want to make sure before I go out and buy a Pentium 4 Processor.

  • salolo Jan 05, 2009

    I have the same problem> Would like to know if I can put a 512 MB or a 1 GB ram memory in my T20. Also I would like to upgrade the hard drive to something above 20 GB, but I can only find 120+GB hard drives and I am not sure if my T20 can take it.

    Thank you for assistance.

    Salza


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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.

Posted on Mar 23, 2009

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Going inside a laptop is never easy. If you can find the parts and if you do the work yourself it might be worthwhile to make these changes. If you have to pay someone it could become very expensive. Sometimes it makes more sense to put the money towards something newer and avoid the hassle.

Posted on Dec 24, 2008

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It should IBM computers are one of the best ones out and there made to upgrade

Posted on Nov 06, 2008

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1 Answer

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?


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.

Oct 09, 2010 | IBM ThinkPad T20 2647 Notebook

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Can Windows XP Pro be installed on an IBM T20? I'm


yes you can. I checked e-bay and there are lots of them with windows xp.

Sep 09, 2009 | IBM ThinkPad T20 2647 Notebook

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I have a thinkpad t20 and a 570e, both with


The IBM Recovery Disk that comes with those laptops is set up for Windows 2000, not Windows XP Pro. The answer is No, you cannot use the IBM Recovery Disk for them, if you install Windows XP Pro.

However! You will have a recovery disk, because you will have the Full Installation disk for Each laptop. Windows XP Pro Full Installation Disk.

(Microsoft Users License states "One genuine copy of Windows per One computer" That means you need Two, genuine copies of Microsoft Windows XP Pro)


Sep 06, 2009 | IBM ThinkPad T20 2647 Notebook

1 Answer

Intel Pentium II Processor Upgrade


No, this highest the P-II went to was either 400 or 450 Mhz. Upgrading a thinkpad CPU may be difficult. Considering prices on used laptops now, I wouldn't think it would be worthwhile, either.

Neil

Feb 09, 2009 | Intel Pentium III , 866 MHz...

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IBM ThinkPad T41, Upgrade my Intel Centrino Processor


make sure that the socket supports your new max Intel.

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DELL OptiPlex GX150 Upgrading


The fastest processor you can install in a GX150 is a Pentium III 1.13 Ghz processor.

The Socket 370 was a design used only for P3 processors.

Max RAM for that system is 512MB no way to upgrade past that.

If you paid $100 for a GX150, you paid way too much (You can buy a refurbished Dell Dimension C521 for $225 at their refurb site)

Jan 26, 2009 | Dell OptiPlex GX150 PC Desktop

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Problem with a IBM ThinkPad T20 2647 PC Notebook


check ur hd for bad sectors...shutting down for no reason is usually this(bad sectors)
also check system information and check device manager..could be software problem/incompatabilty/no drivers installed/or two devices trying to use same resource and shutting down cos cant.

Jan 07, 2009 | IBM ThinkPad T20 2647 Notebook

2 Answers

Upgrading IBM ThinkPad T20 Intel Pentium III to Intel Pentium 4


Patrick, I'm glad to see your enthusiasm to explore and expand on your computer knowledge. Unfortunately I have to be the first to let you know that in this case your ideas on upgrading your systems by simply changing the processors just won't work.

First of all a Pentium 4 (or Centrino, which is the mobile version) literally will not fit into any of the systems you mention. All CPUs are made in specific form factors to fit into different sockets. Most Pentium 4 processors were made for Socket 478 or 478B sockets, which mean they have 478 pins on a chip roughly an inch and a quarter square. The high number of pins allow more signals and data to be passed simultaneously to the motherboard, one way the speed of the CPU operations were increased. Pentium III and older Celerons were mainly socket 370 chips on a chip almost an inch and three quarters square. The lesser number of pins were aligned in six concentric rows with a blank central square. Pentium II and even older Celerons used Socket 7 and any of a half dozen other schemes and were often put on daughtercards to make them somewhat interchangeable. It would be like trying to put a square peg in a round hole.

They also make other forms, like socket 775, 939, and the newest AM2, all of which are pin-incompatible. In certain situations there are adapters that will let you put a newer CPU into an older socket but the specific upgrades you mention have no equivalent.

There are other engineering factors to be considered as well. Not all CPUs run on the same voltage. Many desktop motherboards have been designed that are adjustable either by selecting the operating speed with jumpers (old style) or by electrically sensing the optimum speed of the CPU. Then there are the memory and bus speeds. The CPU has to be able to interact with the memory so they must share a signal speed. This is the Front Side Bus. Older Pentium 4 CPUs were designed to use PC-133 memory but more powerful CPUs. certainly any in the 2.0GHz and up range, are designed for Double Data Rate (DDR), which is PC-2100 up to PC-3200. The pin configuration of the memory is different also to reflect and optimize the faster design. Of course there is now a DDR2 design and most recently DDR3. Core-Duos and Quads use the DDR2 and DDR3 type memory.

Another factor is heat. Faster CPUs run hotter. the system must be designed to accomodate and release the greater amount of heat generated, thus there are larger heatsinks and fans and more vent holes. Otherwise the CPU would start acting erratically and eventually burn out.

Things would be slightly different if you were talking AMD chips, as the socket 472 was much more versitile and could handle a wider range of CPUs and speed, from Duron to Sempron to Athlon XP, all because of the way AMD designed their chips. Of course, they too had to upgrade to surpass physical limitations, leading to the socket 754 and other newer designs.

Desktop machines are much more flexible to upgrade because of the space available and the fact they are designed with expansion slots. If you need a higher video card to run games, or more com ports to run extra printers or whatever, you can generally place a card in a slot to add the functionality. If you reach the design limits of a motherboard you can usually swap it out. Not so with laptops.

Laptops in particular are hard to upgrade because everything is integrated into or designed to plug into the motherboard, which has to fit the case properly like a jigsaw puzzle. This is not to say it is impossible to upgrade somewhat, but usually for laptops it means putting a faster CPU of the same form. Here is an example that is specifically for the IBM T40 laptop:

http://bsnugroho.com/t40upgrade.aspx

No, if you want to upgrade to Pentium 4 or Core Duo or Core Quad speed and performance, you will have to go out and buy a laptop.

Please do not let this discourage your enthusiasm. You share the spirit of the old school to push the limits that has made all of these computer evolutions possible. Consider formal training to round out your knowledge and to expose you to more within the field.

Dec 31, 2008 | Intel (RK80532PG0881M) Pentium 4, 3 GHz...

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

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