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Connect T440p to T61 display panel?

T430-T490, T530-T590 Series
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PurpleMelbourne
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Joined: Tue Mar 29, 2016 4:19 am
Location: Melbourne, Australia

Connect T440p to T61 display panel?

#1 Post by PurpleMelbourne » Mon Jun 25, 2018 8:31 pm

The title probably gives away where I'm going with this.
Except for the display and keyboard, T440p is better than a maxed out W701. Weight of 2.2Kg vs 4.1Kg plus light and cheap 90W PSU vs heavy and expensive 230W PSU.

The T440p is the right size (horizontally 2mm bigger than required) to take a 15.0" UXGA display. The case will need to be enlarged (height) by a couple of inches (~5cm) to accommodate.
What I can find is that the T440p display is only 3mm deep while the 15" LED display is 7mm deep. But plastic is much easier for a hobbyist to change than circuitry.
Just like stretching a Hummer into a Limo... :eek:
Laser cut two cases, and plastic weld back into one?

The 730M video card in the T440p is on par with the Quadro FX3800M of the W701.
The slowest i5 4200M CPU puts out a TDP of 37W yet is 25% faster than a 3GHz T9900 of 35W.
For lower heat, the fastest "cold" 4 core CPU is the i7 4712MQ 2.3GHz @ 37W TDP which is about equal with an OC QX9300 which standard puts out 44W, and lots more when OC.
Best potential CPU of the T440p is 50% faster than the best you can put into a 17" 16:10 W701
(wiki: 3.1Ghz TDP 57W ark: i7 940XM OC@ 4.1GHz)
(wiki: 2.13GHz TDP 55W ark: i7 4940MX OC @ 3.5Ghz).

The T440p takes 32GB memory, has SATA3, USB 3.0, and probably upgradable to USB 3.1 with mini PCIe card.

:?: So... what about the screen? Electronically what does it take to add a "better" screen to one of this "new-classic" machine?
After searching around a bit (all the wrong places?) I was unable to find specific details on pinouts or socket for the internal video connection of the T440p vs the T61. So I decided i'd better just ask here :D

axur-delmeria
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Joined: Mon May 28, 2012 5:49 am
Location: Metro Manila, Philippines

Re: Connect T440p to T61 display panel?

#2 Post by axur-delmeria » Tue Jun 26, 2018 1:00 am

T440p uses eDP (embedded DisplayPort) connection to LCD.
T61 uses LVDS connection to LCD.

Not compatible.
Planned Purchase: T480s i5-8350 FHD Touch
Impulse Buy: Thinkpad not named for safety reasons :lol:
RIP: X220 4291-C91 X61 7676-A24 760XD-U9E :cry:

ndandanov
Posts: 5
Joined: Tue Dec 30, 2014 10:22 am
Location: Sofia, Bulgaria

Re: Connect T440p to T61 display panel?

#3 Post by ndandanov » Mon Jul 09, 2018 7:02 am

PurpleMelbourne wrote:
Mon Jun 25, 2018 8:31 pm
The T440p takes 32GB memory...
As far as I am aware, the Haswell platform supports up to 8GB per DIMM, so the T440p supports up to 16GB of RAM. You can however use up to 2133MHz memory clock. :)

RealBlackStuff
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Location: Loch Garman, Éire

Re: Connect T440p to T61 display panel?

#4 Post by RealBlackStuff » Mon Jul 09, 2018 7:29 am

Nope, the 4th gen. i3/i5/i7-4xxx series can take up to 32GB.

ndandanov
Posts: 5
Joined: Tue Dec 30, 2014 10:22 am
Location: Sofia, Bulgaria

Re: Connect T440p to T61 display panel?

#5 Post by ndandanov » Thu Aug 16, 2018 7:45 am

Perhaps they could if they had 4 SO-DIMM slots.
Unfortunately, the T440p has only two and is therefore limited to 16GB of RAM:
https://www.reddit.com/r/thinkpad/comme ... ram_right/

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