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

Is 65w adapter sufficient for thinkpad x230tablet after all

X230 and later series specific matters only
Post Reply
Message
Author
wwwyanxd
Posts: 4
Joined: Fri Aug 30, 2019 1:29 am
Location: shanghai, china

Is 65w adapter sufficient for thinkpad x230tablet after all

#1 Post by wwwyanxd » Fri Aug 30, 2019 2:06 am

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
Admin Emeritus
Admin Emeritus
Posts: 20399
Joined: Mon Sep 18, 2006 5:17 am
Location: Dublin, Éire
Contact:

Re: Is 65w adapter sufficient for thinkpad x230tablet after all

#2 Post by RealBlackStuff » Fri Aug 30, 2019 2:49 am

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.
Lovely day for a Guinness! (the Real Black Stuff). And pigs CAN fly!
Check out The Boardroom for Parts, Mods and Other Services.

dr_st
Moderator
Moderator
Posts: 8118
Joined: Sat Oct 29, 2005 6:20 am
Location: Israel

Re: Is 65w adapter sufficient for thinkpad x230tablet after all

#3 Post by dr_st » Fri Aug 30, 2019 3:53 am

RealBlackStuff wrote:
Fri Aug 30, 2019 2:49 am
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.
wwwyanxd wrote:
Fri Aug 30, 2019 2:06 am
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.
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

axur-delmeria
Senior ThinkPadder
Senior ThinkPadder
Posts: 2367
Joined: Mon May 28, 2012 5:49 am
Location: Metro Manila, Philippines

Re: Is 65w adapter sufficient for thinkpad x230tablet after all

#4 Post by axur-delmeria » Fri Aug 30, 2019 6:01 am

IMO better safe than sorry. One of my 65w chargers conked out recently, so I replaced it with a 90w.
Daily driver: X220 4291-C91 i7-2620M

Backup: X601 Core 2 Duo T8100
Toy: X60F Core Solo U1300
On loan: X220 4291-P79 i5-2520M
In pieces: two retired but working X61Ts
RIP: 760XD 9546-U9E; X61 7676-A24; and a BOE-Hydis HV121P01-100 in failed SXGA+ mod
:cry:

RealBlackStuff
Admin Emeritus
Admin Emeritus
Posts: 20399
Joined: Mon Sep 18, 2006 5:17 am
Location: Dublin, Éire
Contact:

Re: Is 65w adapter sufficient for thinkpad x230tablet after all

#5 Post by RealBlackStuff » Fri Aug 30, 2019 6:29 am

The 90W is most likely needed if you also have an Ultrabase hooked up.
Lovely day for a Guinness! (the Real Black Stuff). And pigs CAN fly!
Check out The Boardroom for Parts, Mods and Other Services.

dr_st
Moderator
Moderator
Posts: 8118
Joined: Sat Oct 29, 2005 6:20 am
Location: Israel

Re: Is 65w adapter sufficient for thinkpad x230tablet after all

#6 Post by dr_st » Fri Aug 30, 2019 8:04 am

RealBlackStuff wrote:
Fri Aug 30, 2019 6:29 am
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).
axur-delmeria wrote:
Fri Aug 30, 2019 6:01 am
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.
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

wwwyanxd
Posts: 4
Joined: Fri Aug 30, 2019 1:29 am
Location: shanghai, china

Re: Is 65w adapter sufficient for thinkpad x230tablet after all

#7 Post by wwwyanxd » Fri Aug 30, 2019 8:15 am

axur-delmeria wrote:
Fri Aug 30, 2019 6:01 am
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
Posts: 4
Joined: Fri Aug 30, 2019 1:29 am
Location: shanghai, china

Re: Is 65w adapter sufficient for thinkpad x230tablet after all

#8 Post by wwwyanxd » Fri Aug 30, 2019 8:33 am

RealBlackStuff wrote:
Fri Aug 30, 2019 2:49 am
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 :cry:

wwwyanxd
Posts: 4
Joined: Fri Aug 30, 2019 1:29 am
Location: shanghai, china

Re: Is 65w adapter sufficient for thinkpad x230tablet after all

#9 Post by wwwyanxd » Fri Aug 30, 2019 8:37 am

dr_st wrote:
Fri Aug 30, 2019 8:04 am
RealBlackStuff wrote:
Fri Aug 30, 2019 6:29 am
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).
axur-delmeria wrote:
Fri Aug 30, 2019 6:01 am
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
Moderator
Moderator
Posts: 8118
Joined: Sat Oct 29, 2005 6:20 am
Location: Israel

Re: Is 65w adapter sufficient for thinkpad x230tablet after all

#10 Post by dr_st » Fri Aug 30, 2019 8:38 am

Reports closed, no reason to cry... :)
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

onespeedbiker
Freshman Member
Posts: 116
Joined: Sun Jun 23, 2019 10:42 pm
Location: Santa Cruz, CA

Re: Is 65w adapter sufficient for thinkpad x230tablet after all

#11 Post by onespeedbiker » Sun Oct 06, 2019 12:31 pm

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

Post Reply
  • Similar Topics
    Replies
    Views
    Last post

Return to “ThinkPad X230 and later Series”

Who is online

Users browsing this forum: Amika and 8 guests