Is 65w adapter sufficient for thinkpad x230tablet after all

[wwwyanxd]

I'm currently using two retro thinkpads one is thinkpad w520 and another one is x230tablet.
the w520 is basically for recreational purpose, and x230tablet running on linux serve for more serious chores.
The story was like this, the w520 comes with a 170w adapter stock, it used to have no problem doing anything without battery. However after a bios update it starts to require battery inserted or it would limit cpu max frequency at 800mhz, im okay with it despite it's absurdity cause I wouldn't carry it around anyway.
But thinkpad x230tablet is another story, I maneuver it a lot and sometimes i would prefer to grab or hold it on my palm. Here comes the weirdo. without battery When running windows7 (seldom use windows on the machine) it will automatically clock down to 1200mhz, but if running linux it can running consistently at 3100mhz.
I think if it can work fine and unveil it's full capability without auxiliary power source like batteries under linux, it ought to be sufficient as well when running windows.
Question: Have they manipulated power management driver software to sell us newer machines?
I have no intention to defaming Lenovo

[RealBlackStuff]

If the X230T has an i3 or i5 CPU, 65W should be enough.
With i7 CPU the 90W should be used.

170W for the W520 should be enough for any variety without throttling.
If Windows, try an older version of Power Manager.
If Linux, install TLP, or if installed already, check the TLP settings.

[dr_st]

If the X230T has an i3 or i5 CPU, 65W should be enough.
With i7 CPU the 90W should be used.

I am not familiar with such a distinction, nor do I think Lenovo was ever mandating it. Both the i7-3520M and i5-3320M were shipped with 65W adapters, and they have the same TDP anyway.

without battery When running windows7 (seldom use windows on the machine) it will automatically clock down to 1200mhz, but if running linux it can running consistently at 3100mhz.
I think if it can work fine and unveil it's full capability without auxiliary power source like batteries under linux, it ought to be sufficient as well when running windows.
Question: Have they manipulated power management driver software to sell us newer machines?

You are not supposed to run the laptop without a battery. On a 65W PSU it will throttle down, and this has been the case on many Thinkpad generations. Use a 90W if you insist on running the machine without a battery in Windows.

[axur-delmeria]

IMO better safe than sorry. One of my 65w chargers conked out recently, so I replaced it with a 90w.

[RealBlackStuff]

The 90W is most likely needed if you also have an Ultrabase hooked up.

[dr_st]

The 90W is most likely needed if you also have an Ultrabase hooked up.

You would think that, but Lenovo was not advocating that either (the Ultrabase is typically sold charger-less).

IMO better safe than sorry. One of my 65w chargers conked out recently, so I replaced it with a 90w.

I support that. For a stationary setup I'd always go for a 90W, but I'd prefer to take a 65W on the road, cause it's lighter and more compact.

[wwwyanxd]

IMO better safe than sorry. One of my 65w chargers conked out recently, so I replaced it with a 90w.

Yeah, i think you are right, adapter would be noticeably hotter if battery is removed

[wwwyanxd]

If the X230T has an i3 or i5 CPU, 65W should be enough.
With i7 CPU the 90W should be used.

170W for the W520 should be enough for any variety without throttling.
If Windows, try an older version of Power Manager.
If Linux, install TLP, or if installed already, check the TLP settings.

nooooooo
I drink too much and mistakenly reported your post SO SORRY !!
I clinked the wrong button and i don't think there is a way to retrieve

[wwwyanxd]

The 90W is most likely needed if you also have an Ultrabase hooked up.

You would think that, but Lenovo was not advocating that either (the Ultrabase is typically sold charger-less).

IMO better safe than sorry. One of my 65w chargers conked out recently, so I replaced it with a 90w.

I support that. For a stationary setup I'd always go for a 90W, but I'd prefer to take a 65W on the road, cause it's lighter and more compact.

Sorry i just mistakenly reported your post, i drink too much and click the wrong button SOO SORRY!
im crying now
and i don't know why there isn't any crying emoji

[dr_st]

Reports closed, no reason to cry...

[onespeedbiker]

Thought I might add, I recently bought an Ultrabase series 3 (NIB $20!) for my x230 and it came with a 90w adapter. https://cgi.ebay.com/ws/eBayISAPI.dll?V ... 6928648025