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X220s?

X200, X201, X220 (including equivalent tablet models) and X300, X301 series specific matters only.
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Thinkpad4by3
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X220s?

#1 Post by Thinkpad4by3 » Sat Sep 16, 2017 9:05 am

Why was there no X220s or 'proper' X230s? Did they ever exist?
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axur-delmeria
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Re: X220s?

#2 Post by axur-delmeria » Sat Sep 16, 2017 9:12 am

No, AFAIK. The closest thing to an X220s is the regular X220 chassis with a ULV processor and the single heatpipe heatsink (04W0436) that weighs only 34 grams IIRC.
Daily driver: X220 4291-C91 i7-2620M

Backup: X220 4291-P79 i5-2520M
Toy: X60F Core Solo U1300
In pieces: two retired but working X61Ts
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Re: X220s?

#3 Post by dr_st » Sat Sep 16, 2017 9:33 am

As to "why": my guess is that the battery life was the biggest thing. The second Core generation (Sandy Bridge) that X220 is based on brought much improved power efficiency, which allowed the mainstream full-voltage CPUs to achieve comparable battery life to low-voltage CPUs of previous generations. Thus it was deemed unnecessary to have a whole parallel product just for the ULV CPU, although as axur-delmeria pointed out: customized-to-order X220 units with ULV CPUs and a lighter heatsink were, in fact, made.
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

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Re: X220s?

#4 Post by RealBlackStuff » Sat Sep 16, 2017 10:01 am

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Thinkpad4by3
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Re: X220s?

#5 Post by Thinkpad4by3 » Sat Sep 16, 2017 11:33 am

RealBlackStuff wrote:There is an X230s with ULV CPU (limited to CN) similar to X240s.
https://www.notebookcheck.net/Lenovo-Th ... 271.0.html
https://www.thinkscopes.com/2013/01/28/ ... ef-review/
I knew about that, but isnt truly a xx30 series. In my mind, that is an X240, as is the T430u a T440.
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.

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