EEVblog #1279 - Best Dumpster PC Find Yet!

The best dumpster PC find yet!
Some software hacking required to defeat Windows 10 security though.

#DumpsterDiving #Windows10 #Lenovo

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[EEVblog]

And UPDATE: The machine also has a secure TPM crypto chip in it, nice!

[BGTech]

I wish I had one of those Magic dumpsters

[freednighthawk]

*attempts to hack the user password*

Lenovo: I'm sorry Dave, I'm afraid I can't do that.

[DTAChako]

The power connector has three connections: Vcc, Ground and Sense. Sense is the middle connector, ground is in the two contacts you already identified. The Vcc contacts are facing the ground contacts on the middle plastic part. They are a bit hidden.
These Lenovo chargers are not smart. They have a specific resistance connected between the sense and ground so the device knows how much power it can draw or if it wants to run at all.

[hotlavatube]

(enters console)
c:\override all security
Are you sure? Y
All security overriden. Welcome Superuser.

[brumbymg]

If I had access to that dumpster room ....


Well, let's just say finding a home for things would be my challenge - and one of those things would be me.

[dylanmonahan]

Came for the title, stayed for the enthusiasm! Your positivity is contagious, Dave! That little walk-through on removing the OS password was an unexpected bonus :) Keep-em comin', mate!

[mbirth]

4:27 ... If you look closely, the icon above the power jack shows "-" on the outer ring, "+" on the inner ring and then there's the dot in the middle for the centre sense pin.

[EEVblog]

I think I'll try and use this as a large screen capture drawing tablet. My Microsoft surface is messy for this, but this has the perfect 1920x1080 screen capture area, the touch screen, and support for a 2nd monitor to use for recording monitoring.

[acerIOstream]

Allow me to jump in and defend this AC jack for a moment.


These rectangular jacks were originally found on the T*4*-series of Lenovo laptops as a replacement to the barrel jack.
They have a greater shear resistance comparatively to the barrel jacks of yore due to the increased soldered area to the circuit board and the reduced height, making them much sturdier and harder to rip off than a barrel jack.


These days, we have USB C, and it's all nice and standard :)

[drcybr]

That connector is a special Lenovo one, like the big round one. They used the round one until 3rd gen und the square one until 8th or 9th gen. Since then they use USB-C.

[aviramiancovici]

well - that was a classic horror movie opener - "I've found this aio computer in the dumpster and there's nothing wrong with it!"

[Spirit]

Windows exploitation with Dave, now on SECVblog

[Pete]

Today I learned that windows password security is even worse than I thought it was.

[HalfMonty]

I love that you showed off this hack. It's one of my favorites. It's funny that since the XP days, they not only didn't fix this simple hack but made it easier where you don't even need to boot from a disk or thumb drive.

[JerryDodge]

Wait, wait, wait... Avast AND Norton?! BAHAHAHA No wonder you found this thrown out!

[DannyBokma]

Its actually quite a nice connector, survived many years of abuse on all my thinkpads.

[metallitech]

"I'm sorry Dave, I'm afraid I can't do that."

[Orbis]

I really had a struggle when I came across those big yellow barrel connectors on the far left at 5:04. They also have a center pin, but it was not connected in my case. There are two seperate tubes in the outer "ring" and the inner one was positive...

[fluffyty]

I got one of these machines with an i7 from the dumpster about 6 months ago! Use it every day. It’s very nice.