Take a look at our
ThinkPads.com HOME PAGE
For those who might want to contribute to the blog, start here: Editors Alley Topic
Then contact Bill with a Private Message
ThinkPads.com HOME PAGE
For those who might want to contribute to the blog, start here: Editors Alley Topic
Then contact Bill with a Private Message
T480 Modification with Thinkpad T25 7-Row Keyboard
-
- Admin Emeritus
- Posts: 23825
- Joined: Mon Sep 18, 2006 5:17 am
- Location: Loch Garman, Éire
T480 Modification with Thinkpad T25 7-Row Keyboard
LeoKim is at it again: Perfect T480 Modification with ThinkPad T25 7-Row Keyboard
Lovely day for a Guinness! (The Real Black Stuff)
Lenovo: X240, X250, T440p, T480, M900 Tiny.
PS: the old Boardroom website is still available on the Wayback Machine.
Lenovo: X240, X250, T440p, T480, M900 Tiny.
PS: the old Boardroom website is still available on the Wayback Machine.
-
- ThinkPadder
- Posts: 1464
- Joined: Fri Oct 11, 2013 7:45 pm
- Location: North Ridgeville, Ohio, United States
- Contact:
Re: T480 Modification with Thinkpad T25 7-Row Keyboard
Well, at least it's possible - though I wish he went into more detail on how to do it for those of us without a degree in electrical engineering...
Got my T480 a few weeks ago, and I have my old T25 keyboard on hand so I guess it's time to start getting the rest of the parts on order...
Got my T480 a few weeks ago, and I have my old T25 keyboard on hand so I guess it's time to start getting the rest of the parts on order...
T480 with T25 keyboard | T25 | W520 i7-2860QM·Quadro 2000m·IPS FHD | T601F T9900·NVS 140m·LED AFFS UXGA
T420 IPS FHD | X220 IPS FHD | T61p·T61·43·42p|X13 Yoga G3·220T·301·41T·24·23·22|G41|A31p·22m|i1200|TransNote
600|770Z|770|760XD|760EL|701C|755C
T420 IPS FHD | X220 IPS FHD | T61p·T61·43·42p|X13 Yoga G3·220T·301·41T·24·23·22|G41|A31p·22m|i1200|TransNote
600|770Z|770|760XD|760EL|701C|755C
Re: T480 Modification with Thinkpad T25 7-Row Keyboard
Was wondering if a CPU swap is possible instead of a keyboard swap. i.e. put a i7-8650u into a T25. i.e. if someone has the equipment and expertise to desolder and put a new one in.
Of course the BIOS has to support as well. The T480 series has been sold with 7th gen 7200u cpu etc.. That way the base, nvidia graphics , docking port are all still intact.
https://ark.intel.com/content/www/us/en ... 0-ghz.html
https://ark.intel.com/content/www/us/en ... 0-ghz.html
Both seem to have same voltage and FCBGA1356 .
Of course the BIOS has to support as well. The T480 series has been sold with 7th gen 7200u cpu etc.. That way the base, nvidia graphics , docking port are all still intact.
https://ark.intel.com/content/www/us/en ... 0-ghz.html
https://ark.intel.com/content/www/us/en ... 0-ghz.html
Both seem to have same voltage and FCBGA1356 .
-
- Freshman Member
- Posts: 58
- Joined: Sun Dec 29, 2019 4:17 am
- Location: Washington, Illinois
- Contact:
Re: T480 Modification with Thinkpad T25 7-Row Keyboard
the CPU isn't just the CPU itself for this era, it's more than that. a lot of people in the know call these new CPUs SoCs for that very reason, because it integrates a lot of components into what would be the package meant for only the CPU. they might have the same voltage and amount of solder balls, but it doesn't mean it's a straight swap with a simple UEFI modification to follow.
for example, the 8650U and the 7500U you linked has integrated chipsets. that itself is a major blockade when it comes to CPU upgrades, as it may introduce a lot of electrical signaling changes that we can't see or tell apart from doing trial and error guesses. if you were to simply switch the SoC around that has a chipset which may be different, you have to modify the UEFI as well for that to work. and modifying the UEFI to support different chipsets? that's near impossible without building an entirely new UEFI from scratch.
for the record, switching chipsets generally requires the entire motherboard to be modified too. such as the amount of layers, traces, etc. you get the idea.
for example, the 8650U and the 7500U you linked has integrated chipsets. that itself is a major blockade when it comes to CPU upgrades, as it may introduce a lot of electrical signaling changes that we can't see or tell apart from doing trial and error guesses. if you were to simply switch the SoC around that has a chipset which may be different, you have to modify the UEFI as well for that to work. and modifying the UEFI to support different chipsets? that's near impossible without building an entirely new UEFI from scratch.
for the record, switching chipsets generally requires the entire motherboard to be modified too. such as the amount of layers, traces, etc. you get the idea.
send me a PM if you need something added or changed in the ThinkWiki, i might not be active all the time so please be patient
"There is always you can not think of the low price." - JD.com
"There is always you can not think of the low price." - JD.com
Re: T480 Modification with Thinkpad T25 7-Row Keyboard
Thank you ThreeIguanasPerSecond, what you said makes lot of sense with the chipset etc.
Not sure if they used old chipset and designed specific motherboards, within the same series ( i.e. 20L5 ) and created a subseries within that 20L5.
on page 78 of this pdf http://psref.lenovo.com/syspool/Sys/i_pdf/ThinkPad.pdf
The model is available for sale on amazon
https://www.amazon.com/Lenovo-Thinkpad- ... B07L6RKX2Y
From a manufacturing perspective, i.e. cost of production, would lenovo go out of their way to design whole new motherboard just to sell 2 older model i5 processors ...
Hence was hoping if the 8th generation and 7th generation support or can use same chipsets interchangeably.
Again like you said if it is a whole different chipset and components & sub components and Lenovo was willing to put in the effort just to call a T470 as T480 , they must be easily capable of making the T25 keyboard fit the newer models.
I wish lenovo gave the T25 keyboard as an option for other models or atleast for one model sometime in future which can get us through another 3 years of having a good machine!.
So far the T25 is great, does most of the things, except for running VM'.s
Not sure if they used old chipset and designed specific motherboards, within the same series ( i.e. 20L5 ) and created a subseries within that 20L5.
on page 78 of this pdf http://psref.lenovo.com/syspool/Sys/i_pdf/ThinkPad.pdf
The model is available for sale on amazon
https://www.amazon.com/Lenovo-Thinkpad- ... B07L6RKX2Y
From a manufacturing perspective, i.e. cost of production, would lenovo go out of their way to design whole new motherboard just to sell 2 older model i5 processors ...
Hence was hoping if the 8th generation and 7th generation support or can use same chipsets interchangeably.
Again like you said if it is a whole different chipset and components & sub components and Lenovo was willing to put in the effort just to call a T470 as T480 , they must be easily capable of making the T25 keyboard fit the newer models.
I wish lenovo gave the T25 keyboard as an option for other models or atleast for one model sometime in future which can get us through another 3 years of having a good machine!.
So far the T25 is great, does most of the things, except for running VM'.s
Re: T480 Modification with Thinkpad T25 7-Row Keyboard
Everybody wishes that, except brain-dead corporate execs at Lenovo apparently. Who knows, maybe one day someone will surprise us.
Thinkpad 25 (20K7), T490 (20N3), Yoga 14 (20FY), T430s (IPS FHD + Classic Keyboard), X220 4291-4BG
X61 7673-V2V, T60 2007-QPG, T42 2373-F7G, X32 (IPS Screen), A31p w/ Ultrabay Numpad
X61 7673-V2V, T60 2007-QPG, T42 2373-F7G, X32 (IPS Screen), A31p w/ Ultrabay Numpad
-
- Similar Topics
- Replies
- Views
- Last post
-
-
tips for keeping a zombie t25 keyboard alive?
by aaa » Mon Nov 13, 2023 9:19 pm » in Thinkpad T25 Anniversary/Retro - 1 Replies
- 5113 Views
-
Last post by gulencocuk
Mon Nov 20, 2023 2:31 am
-
-
-
ISO T25 US layout keyboard
by matthew28845 » Mon Jan 08, 2024 4:45 pm » in Thinkpad T25 Anniversary/Retro - 1 Replies
- 2606 Views
-
Last post by dr_st
Tue Jan 09, 2024 3:18 am
-
-
-
Sourcing the power button for my T25 mod
by LouisDK » Tue Dec 26, 2023 3:08 pm » in Thinkpad T25 Anniversary/Retro - 1 Replies
- 2558 Views
-
Last post by gulencocuk
Tue Jan 02, 2024 3:47 pm
-
-
- 1 Replies
- 2560 Views
-
Last post by Badcatalex
Fri Nov 10, 2023 11:21 am
Who is online
Users browsing this forum: No registered users and 4 guests