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A T420 with macOS High Sierra

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oeuvre
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Joined: Wed Dec 07, 2011 10:41 am
Location: New York, NY

A T420 with macOS High Sierra

#1 Post by oeuvre » Mon Mar 25, 2019 7:47 am

Hi all,

Got some pretty cool news. Found a ThinkPad T420 on eBay for $63 shipped. It is a complete rig, came with i5 2520M, 8GB RAM, 1600x900, 128GB Toshiba SSD, and 90W charger. Has HD3000 graphics. The issue was a corrupted Windows 7 install so looks like the guy didn't know how to fix or had time to deal with it.

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seller's picture, needs some cleaning up

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also had this tape and stickers on the lid

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And all cleaned up! It seems to be missing the little sticker for the LEDs on top of the case. Anyone know where I can nab that? Thanks.

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front

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rear

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side

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other side. Ditched the DVD/RW drive with a spare 2nd bay SATA caddy and tossed in another SSD in there.

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Bottom

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dat Sierra Gobi card

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Even has the NMB keyboard! Does have some shine on it though. Replaced the touchpad sticker as well

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superior OS

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modded BIOS with WiFi whitelist removed. Added a Dell DW1510 WiFi card

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desktop

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specs

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programs galore

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installing high sierra on the other SSD

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a helper! Used this guide https://josephsiu.com/convert-windows-1 ... gh-sierra/

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macOS 10.13.6 desktop

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specs + details
NetVista Sleeper i7 3770, 16GB, GTX750, 2xSSD + HD, XP/7/MacOS 10.13.6
ThinkCentre Sleeper Ryzen 7 2700, 32GB, RX580 8GB, NVMe SSD + HD, 10

dr_st
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Re: A T420 with macOS High Sierra

#2 Post by dr_st » Mon Mar 25, 2019 8:10 am

oeuvre wrote:
Mon Mar 25, 2019 7:47 am
seller's picture, needs some cleaning up
Oh God! That flash! That touchpad! I'm both blind and nauseous now.
Thinkpad 25 (20K7), X1 Carbon (20HQ), 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, A21m 2628-GXU

Thinkpad4by3
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Location: N. Bellmore, ny

Re: A T420 with macOS High Sierra

#3 Post by Thinkpad4by3 » Mon Mar 25, 2019 9:49 am

dr_st wrote:
Mon Mar 25, 2019 8:10 am
oeuvre wrote:
Mon Mar 25, 2019 7:47 am
seller's picture, needs some cleaning up
Oh God! That flash! That touchpad! I'm both blind and nauseous now.
:lol: :lol: I am too!!
Thinkpad4by3's Law of the Universe.

The efficiency of two screens equally sized with equal numbers if pixels are equal. The time spent by a 4:3 user complaining about 16:9 is proportional to the inefficiency working with a 16:9 display, therefore the amount of useful work extracted is equal.

GrifterGuru
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Location: London, UK

Re: A T420 with macOS High Sierra

#4 Post by GrifterGuru » Tue Mar 26, 2019 1:33 am

Nice to see another T420 on High Sierra ;)

I have to wonder though, Vanilla or patched?

I have my T420 quad booting by running a token W7 (purely for just two programs!!), a flavour of Linux, High Sierra AND Mojave. I had my WWAN slot going begging (empty), so slapped in an mSata and that gave me 3 SSD drives. Topped it off with an i7 and 16GB, 1600mHz RAM. Tidy little machine spec and performance wise.

I may have a complete lid available soon as I have all but a complete rebuild kit ready for my T420. Just missing the base plastic/chassis shell.

So far my X201, X220, X240, T420, T430 and M73 all run OSX. I also have 3 Tower machines running OSX.

Still haven't quite found the necessary time nor tools to try and install OSX on my L412, although I am not so bothered about that.
X31 2672-58G, M73 10AXS, M73 10AXS i7, L412 4403-72G i5,T420 4236-9N8 i7-2630QM, T430 2349-TDG, X201 3680-C85, X220 42902
Install Mojave on X220 & T420

oeuvre
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Posts: 331
Joined: Wed Dec 07, 2011 10:41 am
Location: New York, NY

Re: A T420 with macOS High Sierra

#5 Post by oeuvre » Tue Mar 26, 2019 7:53 am

I did a vanilla install, didn't use Multibeast/Unibeast at all. Does your T420 have the FHD mod?
NetVista Sleeper i7 3770, 16GB, GTX750, 2xSSD + HD, XP/7/MacOS 10.13.6
ThinkCentre Sleeper Ryzen 7 2700, 32GB, RX580 8GB, NVMe SSD + HD, 10

GrifterGuru
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Posts: 151
Joined: Wed Sep 05, 2018 10:41 pm
Location: London, UK

Re: A T420 with macOS High Sierra

#6 Post by GrifterGuru » Tue Mar 26, 2019 6:46 pm

Planning on the FHD, but ATM, no it does not.

Been too busy messing with other things to get near the T420, other than to use it.

Did you find the DSDT for the T420 per chance? Lots of install guides, only one really decent one out there and although not T420 specific, works just fine ;)
X31 2672-58G, M73 10AXS, M73 10AXS i7, L412 4403-72G i5,T420 4236-9N8 i7-2630QM, T430 2349-TDG, X201 3680-C85, X220 42902
Install Mojave on X220 & T420

oeuvre
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Posts: 331
Joined: Wed Dec 07, 2011 10:41 am
Location: New York, NY

Re: A T420 with macOS High Sierra

#7 Post by oeuvre » Wed Mar 27, 2019 7:40 am

Didn't, just used that guide I linked.
NetVista Sleeper i7 3770, 16GB, GTX750, 2xSSD + HD, XP/7/MacOS 10.13.6
ThinkCentre Sleeper Ryzen 7 2700, 32GB, RX580 8GB, NVMe SSD + HD, 10

GrifterGuru
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Posts: 151
Joined: Wed Sep 05, 2018 10:41 pm
Location: London, UK

Re: A T420 with macOS High Sierra

#8 Post by GrifterGuru » Tue Apr 09, 2019 3:14 pm

Are you getting/did you resolve the graphics glitching?
X31 2672-58G, M73 10AXS, M73 10AXS i7, L412 4403-72G i5,T420 4236-9N8 i7-2630QM, T430 2349-TDG, X201 3680-C85, X220 42902
Install Mojave on X220 & T420

oeuvre
Junior Member
Junior Member
Posts: 331
Joined: Wed Dec 07, 2011 10:41 am
Location: New York, NY

Re: A T420 with macOS High Sierra

#9 Post by oeuvre » Wed Apr 10, 2019 7:25 am

Not really actually, kind of a bummer
NetVista Sleeper i7 3770, 16GB, GTX750, 2xSSD + HD, XP/7/MacOS 10.13.6
ThinkCentre Sleeper Ryzen 7 2700, 32GB, RX580 8GB, NVMe SSD + HD, 10

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