T20 vs T2?

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Fidim · #1 Post by **Fidim** » Thu Aug 03, 2006 12:06 pm

Hello Guys. This is my very first post in this forum.

I was about to purchase a T22 (800Mhz, 128mb single chip, 10gb hd, some marks on the lcd) from this person that sold several for a foundation that got many Thinkpads as a donation but would only accept money. I refered a friend because i didnt have money at that time and he got it. Now, he says he doesn't have any T22 left, and the best he has now is a T20 (700Mhz, same ram and hd config as the T22, mint lcd).
I have searched the web and read the manual, and the only difference I have found is the initial equipment they were released with. Is there any important diference between the T22 and T20?
I was getting the T22 for 1300$ (of my currency), that's about 426u$s, how much should i offer for this T20? Both came with the adapter and used battery (about 40-60 minutes).
Well, thank you in advance. If the price seem too high or too low, remember I'm from Argentina.

#2 Post by **rkawakami** » Thu Aug 03, 2006 3:44 pm

Hi, and welcome to the forum.

Forum FAQ can be found at:

http://forum.thinkpads.com/viewtopic.php?t=1689

A brief description of various withdrawn Thinkpads (including the T2x series) can be found at:

ftp://ftp.software.ibm.com/pc/pcinstitu ... awbook.pdf

A quick scan of the T20 vs. the T22 says there isn't much difference other than the processor speed, the screen resolution (T20 max is 14.1" XGA and T22 max is 14.1" SXGA+), and the graphics chipset (S3 Savage IX8 for the T20 and IX8+ for the T22). I have no idea exactly what the graphics hardware differences are other than possibly support for the larger SXGA+ screen size. Both systems will use the same type of memory and same hardware (Ultrabay device, port replicator, battery, etc.).

You should probably scan recently closed eBay auctions for equivalent T20 systems and see what they have been selling at. SInce you said that the T22 sold for USD$425, I would say something around $340-$360 (15-20% less) would be about right, if that is what your local market for used Thinkpads is going for. If the battery life is 1 hour or less, then you are looking at replacing it very soon since a new battery should last at least 2-3 hours.

Fidim · #3 Post by **Fidim** » Thu Aug 03, 2006 6:49 pm

I've looked through the forum some more, and I overheard (over-read, lol) that T20 came in different mainboard flavors, one that supported processor upgrade beyond 800 mhz and one that didn't. I hoped to get some more feedback from the vast group of forum browsers in here. Thank you!

#4 Post by **rkawakami** » Thu Aug 03, 2006 6:57 pm

The Hardware Maintenance Manual lists the following motherboard FRUs:

T20 (all models except 2647-5xx, 9xx, Lxx): 12P3360
T20 (2647-5xx, 9xx, Lxx): 12P3363

I do not know the differences between them. Perhaps someone who has better experience than me can answer your question.

(edit: Looking at the T20 model numbers in the HMM, I see that the 2647-5xx, 9xx, and Lxx systems are listed with the 750Mhz processor. Is it possible to put faster processor than that in those motherboards? Hopefully somebody has tried and posted their experience here.)

shined · #5 Post by **shined** » Thu Aug 03, 2006 7:16 pm

I used to have T20 2647-41U, 700MHz Win98 model. I upgraded the CPU to 1GHz and it worked just fine. But I have heard that some people were not successful in the CPU upgrade. I don't know what were the FRU of their system boards.

So I guess the distinction might not be so clear that someone can tell beforehand. The success/failure may depend on some kind of subtle difference on each individual system boards.

Fidim · #6 Post by **Fidim** » Thu Aug 03, 2006 7:36 pm

shined wrote:I used to have T20 2647-41U, 700MHz Win98 model. I upgraded the CPU to 1GHz and it worked just fine. But I have heard that some people were not successful in the CPU upgrade. I don't know what were the FRU of their system boards.

So I guess the distinction might not be so clear that someone can tell beforehand. The success/failure may depend on some kind of subtle difference on each individual system boards.

Just to know, would you tell me what lcd panel size it had? because as i've been reading, the ones that couldn't be upgraded might just go with the smaller version (13' or so i believe) vs 14'

JVG · #7 Post by **JVG** » Fri Aug 04, 2006 2:05 am

Well, I know of at least one case of upgrading a 650MHz 13" unit to 900MHz without a glitch

Check my comments in this thread:

http://forum.thinkpads.com/viewtopic.ph ... highlight=

So this adds to the global uncertainty in this topic

!

Regards,

JOSE

Fidim wrote:
shined wrote:I used to have T20 2647-41U, 700MHz Win98 model. I upgraded the CPU to 1GHz and it worked just fine. But I have heard that some people were not successful in the CPU upgrade. I don't know what were the FRU of their system boards.

So I guess the distinction might not be so clear that someone can tell beforehand. The success/failure may depend on some kind of subtle difference on each individual system boards.
Just to know, would you tell me what lcd panel size it had? because as i've been reading, the ones that couldn't be upgraded might just go with the smaller version (13' or so i believe) vs 14'

Fidim · #8 Post by **Fidim** » Thu Aug 17, 2006 8:11 am

I finally got it, and I'm glad I did. I only have a problem now making it work with xp and the 10/100 ethernet on-board...the search feature in the forum isnt working. any idea?

dsigma6 · #9 Post by **dsigma6** » Thu Aug 17, 2006 4:55 pm

are you having a problem with drivers?

kstuart · #10 Post by **kstuart** » Fri Aug 18, 2006 1:28 am

Fidim wrote:I finally got it, and I'm glad I did. I only have a problem now making it work with xp and the 10/100 ethernet on-board...the search feature in the forum isnt working. any idea?

What is the symptom of the problem ?

egibbs · #11 Post by **egibbs** » Fri Aug 18, 2006 5:41 am

I had a T20 that I upgraded to XP with no problem, so it will work.

Note that not all T20s came with ethernet cards - some had combo cards (ethernet and modem) and some only had a modem. Both types had the ethernet connector on the back, but only the ones with combo cards had the connector actually hooked to anything inside.

Open the little square door on the bottom and look at the Mini-PCI card. If it has two sets of cables plugged into the card it is a combo card. If only one, it is a modem.

Ed Gibbs

Fidim · #12 Post by **Fidim** » Fri Aug 18, 2006 7:28 am

egibbs wrote:I had a T20 that I upgraded to XP with no problem, so it will work.

Note that not all T20s came with ethernet cards - some had combo cards (ethernet and modem) and some only had a modem. Both types had the ethernet connector on the back, but only the ones with combo cards had the connector actually hooked to anything inside.

Open the little square door on the bottom and look at the Mini-PCI card. If it has two sets of cables plugged into the card it is a combo card. If only one, it is a modem.

Ed Gibbs

This was the problem. I read Thinkpad T20 service manual and read that there are latops that come with the socket but the feature isnt in the mini pci card. I just replaced the Lucent 56K modem for the Intel 10/100 Combo. Worked just fine.

Now I'm trying to find out why battery will charge to 100% in no time and hold about 5 minutes time. I run pc-doctor battery rundown with a little charge and lasted about 20 minutes. This is in win Xp, I don't know if something like this ever happened to any of you? Changed the charger and the battery and still the same problem. They work fine on a t22, but not in my t20. Maybe a motherboard problem? Installing all OS updates now, let's see what happen.

BTW Thanks Ed!

T20 vs T2?

T20 vs T2?

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