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T440s - occasion - processor&price questions

T430 and later, plus T530 and later series specific matters only
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bleda3
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Joined: Mon Jan 14, 2019 5:42 am
Location: Bern, Switzerland

T440s - occasion - processor&price questions

#1 Post by bleda3 » Sun Feb 03, 2019 3:56 pm

Hey all
I found an T440s Core i5-4300U 4GB on Ebay which I prob could buy for ~60 USD incl. shipping.
The seller has a foto of the BIOS, where processor speed states 1.90 GHz. This seems very low, as my older x220 has an Intel(R) Core(TM) i7-2640M CPU @ 2.80GHz.
On Thinkwiki T440s I see that the goes up to 2.90 GHz [Core i5-4300U I (2x 1.90 - 2.90 GHz, 3MB L3)]
Question1: 1.90 - 2.90 GHz implies, that there are different CPUs under the SerialNr 43300U or does it mean, that I can manually speed up the processor up to 2.90GHz?


The only flaws are a big crack in the screen and that the seller doesn't include the hard drive. But the T440s screen can be replaced with a lot of other screens: T440(s/p) <-> E440 <-> L440 <-> T431s Source: thinkwiki.de
So I speculate, that sooner or later I find an other cheap broken Thinkpad, so I can change the screen.
Question2:
Do you think ~60 USD incl. shipping is a good price for an T440s Core i5-4300U 4GB with a crack in the screen and without a hard drive?

Screamer
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Re: T440s - occasion - processor&price questions

#2 Post by Screamer » Sun Feb 03, 2019 5:24 pm

The serial number that you are referring to, is that processor's serial number? Or, could it be something else that you are referring to?

I suppose that the 'turbo boost' range for the Core i5-4300U is implying that it could clock up to 2.9GHz on 1 core, but sustaining that clock speed would be quite a difficult task.

Does it have any major cosmetic damage, and does it come with the charger? I believe that $60 USD is good for a functional T440s (with that crack in the display, and the lack of a hard drive), though I would reconsider if the shipping cost is way too high.

bleda3
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Re: T440s - occasion - processor&price questions

#3 Post by bleda3 » Sun Feb 03, 2019 5:52 pm

Thanks for your fast reply.

The "SerialNr" is the Number of the processor: T440s Core i5-4300U

Up to how high would you bid? The ~60 USD was a rough estimated value and maybe way to optimistic.

Tasurinchi
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Re: T440s - occasion - processor&price questions

#4 Post by Tasurinchi » Mon Feb 04, 2019 3:55 am

That 2.9GHz is the "turbo boost" info

60 USD for a T440s is cheap IMO, a new SSD won't cost much, and with a little of patience you can get a nice FHD screen (70 to 90 USD more) :wink:

You also may want to swap the button-less trackpad with a 5 button one...
IBM Convertible 5140/L40SX/220/240/240X/2*340CSE/360PE/365XD/380D/380E/380XD/380Z/390/560E/560X/2*570/2*600/600E/750Cs/755C/760CD/760EL/760XD/770E
A20p/A22p/A31/i1600/G40/R50p/R61i/S30/SL510/2*T22/4*T4x/11*T6x/6*T40x/6*T5x0/3*W5x0/W700/3*X2x/4*X3x/3*X4x/5*X6x/3*X6xT/12*X2xx/4*X30x/Z60m/3*Z61x

Screamer
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Re: T440s - occasion - processor&price questions

#5 Post by Screamer » Mon Feb 04, 2019 6:59 am

I would not bid above $140 USD for a T440s that has a barely usable screen, and a missing hard drive. This is just my opinion, though.

If it is in a good condition, and is also sold along with its charger, I would usually allow myself to bid a little higher (max $190 USD).

axur-delmeria
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Re: T440s - occasion - processor&price questions

#6 Post by axur-delmeria » Mon Feb 04, 2019 10:45 am

The reason why the i5-4300U has a lower clock speed than your X220's i7-2640M is because Intel changed its focus to reducing power consumption (thus prolonging battery life).

The i5-4300U has a TDP of 15w including the chipset, while the i7-2640M is more than twice that at 35w (chipset not included). The lower TDP allowed laptops to become lighter and smaller while increasing battery runtime.

Each succeeding generation made improvements not only in the base clock but also integrated graphics performance, while maintaining the TDP to 15w.

i5-5300U --> 2.3 GHz base, 2.9 GHz Turbo
i5-6300U --> 2.4 GHz base, 3.0 GHz Turbo
i5-7300U --> 2.6GHz base, 3.5 GHz Turbo
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:

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