T20 CPU upgrade?

T2x/T3x series specific matters only
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ehendershot
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T20 CPU upgrade?

#1 Post by ehendershot » Sat Feb 16, 2008 4:03 am

hey new to the board and ive got a few questions.

1.) ive got a T20 2647 - T1U. i would like to upgrade to a 1 GHz CPU but so far from what i've read ( yes the search function is your friend :D ) your stock CPU must be at least 800 MHz to upgrade to 1GHz. is this right? i just want verification since i'm currently running at 700.

2.) I also have a 2647 - 44U motherboard/base. what is the difference between the T1U and the 44U types?

3.) the 44U was my original motherboard/base and i recently bought the T1U as a replacement since the 44U didnt appear to be working. the problem with the 44U was when i pressed the power nothing happened. i tried all memory/ battery/ AC combos and nothing worked. all that would happen was the processing light came on for a brief moment when i pushed power , the battery light would go out, and the speakers would pop ( like they briefly got power ). then the battery light would come back on after a second or two. i could wiggle the power button back and forth ( press fast )and the same things would happen. is the board shot or is it salvagable? id like to keep it and "build" another Thinkpad.

i know its alot but thanks for your patience.':roll:'
Windows XP
T20
....takes a lickin and keeps on tickin.

Harryc
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#2 Post by Harryc » Sat Feb 16, 2008 6:39 am

1.) I've done this upgrade several times and the base machine always had at least 800Mhz. It is my understanding that you need a machine with at least 800Mhz to do the upgrade.
2.)
Product: ThinkPad T20 2647-44U
Original description: PIII 700MHz, (256KB), 128MB RAM, 12.0GB HDD, 14.1 XGA(1024x768) TFT LCD, 6X-2.3X DVD, Intel Mini PCI Combo card, TV out, Li-Ion battery, Win98

Product: ThinkPad T20 2647-T1U
Original description: Based on 2647-81U: PIII 700MHz (256KB) 256MB RAM, 12GB HDD, 14.1 XGA(1024x768) TFT LCD, CD-ROM, 56K Ambit Modem, RFID, TV out, Li-Ion battery, Win2000

3.) Sounds like the 'blink of death' problem. See this thread -
http://forum.thinkpads.com/viewtopic.php?t=48835

ehendershot
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Location: Watsontown, PA
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#3 Post by ehendershot » Sat Feb 16, 2008 2:05 pm

where did you get the product info from? i looked aroud ibm/lenovo's site and couldnt find squat.
Windows XP
T20
....takes a lickin and keeps on tickin.

Harryc
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Moderator Emeritus
Posts: 13228
Joined: Thu Apr 12, 2007 8:23 am
Location: Upstate New York

#4 Post by Harryc » Sat Feb 16, 2008 2:09 pm

Plug the product number into the box at this link -
http://www-307.ibm.com/pc/support/site. ... eLenovo.do

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