Post Ay2IX5OO8xYw863sI4 by roskakori@graz.social
(DIR) More posts by roskakori@graz.social
(DIR) Post #Ay0DUxqMLofA3EOTia by publicvoit@graz.social
2025-09-08T16:59:58Z
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My #Lenovo #x13 manual says:"Maximum #altitude (without pressurization): 3048 m (10,000 ft)"🤔 Well, that's actually interesting to know because here in #Austria, you can easily end up working at heights exceeding that.Anybody an idea why there is this limit and why it is rather low?
(DIR) Post #Ay0F2kYeLwLYe8mh9c by publicvoit@graz.social
2025-09-08T17:17:17Z
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@michie164 Ja. Allerdings dann hätte ich aber auch erwartet, dass Aufgabegepäck im Flieger auch im ausgeschalteten Zustand ein No-Go wäre, was allerdings nicht im Manual steht.
(DIR) Post #Ay0FBDH5T7FC1hbaAS by publicvoit@graz.social
2025-09-08T17:18:49Z
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@alienghic I guess meanwhile, there is almost no laptop which contains a hard disk. Just SSDs mostly in form of NVMe/M.2.So this should not be any issue any more.
(DIR) Post #Ay0FPE55GczGa7flbc by weingrill@mastodon.berlin
2025-09-08T17:21:21Z
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@publicvoit Abgesehen von Festplatten ist die Kühlleistung von Lüftern in großer Höhe vermindert.
(DIR) Post #Ay0GLQ1d1628QDnx8S by publicvoit@graz.social
2025-09-08T17:31:53Z
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@weingrill Good point.Allerdings hätte ich hier erwartet, dass die Höhen-Werte für die starken CPU-Varianten tiefer sind als für die schwachen CPU-Varianten. Ist auch nicht der Fall. 🤷 Vielleicht ist's ja aus Faulheit nur für die stärkste Variante durchgerechnet?
(DIR) Post #Ay0GbcHdD1OT4b0uTA by publicvoit@graz.social
2025-09-08T17:34:49Z
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@alienghic Yes, that's a good one as it affects all model variants in the same way.Interesting. Didn't know that there's a max altitude for batteries. In Austria, you can take roads up to 2500m+ using electric cars ... 🤔
(DIR) Post #Ay0Gtaz4mK44FvuKqe by publicvoit@graz.social
2025-09-08T17:38:03Z
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@lettosprey Oh, I may take my notebook with me in case I need to work during breaks while skiing. Or I may work for a company that's maintaining infrastructure in those heights (lifts, buildings, ...). I can think of many reasons to do so. How often is not an argument if the hardware might be damaged on its first use above that height limit.In my life time, I was at similar altitudes multiple times. And I'm not even going for hiking that often.
(DIR) Post #Ay0HTq2IIElbMbh8KG by AnachronistJohn@zia.io
2025-09-08T17:38:36.239904Z
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@alienghic @publicvoit Yes, that hole is so there's no pressure difference between outside and inside of a hard drive.Disk heads use the Bernoulli principle to keep the heads from touching the disks. If the air is too thin, then even small jolts might cause the heads to hit the disks, or if it's thin enough, this won't work at all.Even with solid state disks, there are issues with electronics above certain altitudes. The lack of pressure can cause battery cells to expand, for instance. Another issue is heat dissipation. If you have an Intel laptop with a CPU that's putting out 90 watts worth of heat, thin air at high altitudes isn't going to cool that nearly as well and you're going to have much more throttling (or crashing, as some Intel CPUs are wont to do).
(DIR) Post #Ay0I56xwJNRIaKQmsy by Landa@graz.social
2025-09-08T17:51:21Z
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@publicvoit Kabinendruck wird im Reiseflug normalerweise auf den üblichen Druck zwischen 2000 und 3000m Höhe nivelliert (bei weniger würden Passagiere Höhenkrankheit erleiden).Das würde zu den Grenzwerten für die Lenovo Notebooks passen.@michie164
(DIR) Post #Ay0Va8ygBDj5CpuA0e by publicvoit@graz.social
2025-09-08T20:22:37Z
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@mkj @lettosprey In the cabin, not for the checked in luggage. So this should only make a difference when the device is turned on.
(DIR) Post #Ay0VkmajkejcxhmMK0 by publicvoit@graz.social
2025-09-08T20:24:33Z
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@lettosprey Well, it's the business series by lenovo, being proud of having a more robust nature including some certificates in that directory.Maybe I'm just surprised to learn that it takes special equipment for that altitudes. 🤷
(DIR) Post #Ay2IX5OO8xYw863sI4 by roskakori@graz.social
2025-09-09T17:05:46Z
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@publicvoit #Lenovo offers different products for different audiences at different prices. The #Thinkpad series supports MIL-STD 810G and works up to 4500m (15.000ft). https://www.lenovo.com/us/en/thinkpad-milspec/
(DIR) Post #Ay2e4nuLkrl4mlvkZc by publicvoit@graz.social
2025-09-09T21:07:15Z
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@roskakori Well, the x13 ThinkPads do have different max. altitudes. 🤷
(DIR) Post #Ay2u8wh0dLOOSLgfr6 by roskakori@graz.social
2025-09-10T00:07:17Z
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@publicvoit I see, so the x13 is a Thinkpad. Then I suppose you have to decide on the features that are important to you beforehand, and then check before you buy. Sadly, it seems you can't just rely on the model name.