LENOVO THINKPAD C13 YOGA CHROMEBOOK 13.3" FHD AMD ATHLON GOLD 3150C 2.4GHZ / 4GB RAM / 32GB

ton

26.05.2024

wishful thinking tells me the insane temperature when GPU stressing is due to the high tdp state of 25w, which under normal circumstanses should only be active for short periods of time. There is a chance furmark makes the processor behave abnormally (there has been GPU overheating issues with furmark in the past). The game tested should have had high temperatures too if the problem was global and not application specific.

Neenyah

29.03.2024

Quote from: Miki on March 29, 2024, 11:40:52 Quote from: Miki on March 29, 2024, 11:40:52 https://pcsupport.lenovo.com/hr/en/products/laptops-and-netbooks/thinkpad-t-series-laptops/thinkpad-t16-gen-1-type-21ch-21cj/21ch/downloads/driver-list/component?name=Power%20Management&id=E1B533C3-16CA-4FBE-8BD8-FB5D7A57F431 https://imgur.com/Fyw6lKl https://imgur.com/txgeJGD Go to Device Manager > System Devices and find Lenovo PM Device. Uninstall it and reinstall version prior to 1.69.15.0: That being said, it is not planned obsolescence, they just heavily adjusted (for the better) power curves so now it's basically flat line of CPU Package usage, same with thermals. Peak performance is slightly lower but average performance is slightly better so I like it this way on my X1 Carbon. Also literally no fan activity or noise whatsoever, I was curious if it was broken so I had to do a test in the BIOS to actually hear it. This is the current graph (for me): It starts at PL2 and then after 28 seconds if the load is still going it just flats at 23W for eternity, no drops (this was after 30 minutes). Same with other new(er) ThinkPads. No even fan noise as peak temps never exceed 81°C but they stay at exactly 80 (fan starts to spin at 81+). It used to be like this: So yeah, if you want the latter just uninstall 1.69.15.0 (and install the older version!) and you'll be fine.

NikoB

29.03.2024

The same could be required to oblige laptop manufacturers to legally declare noise levels at certain loads. Etc. and so on. All this is easy to formalize. But this is not being done. This means there is chaos in the market, which is convenient for producers, but not for consumers. Maximum formalization of the extensive characteristics of goods always leads to a more civilized and more profitable market for consumers. But this is always opposed by manufacturers and their corrupt political assistants. Consider Oregon's just-passed right-to-repair law. It sounds beautiful, but in essence it is destroyed by vile details introduced by corrupt officials and politicians. Much like a similar good law in New York State was simply buried, diluted with many vile clauses that were introduced by corrupt authorities.

NikoB

29.03.2024

This rather looks like an attempt to get rid of more specific warranty cases. First, the speed is advertised, leading to faster degradation of the power unit. Especially with Intel platforms (who would believe that the processor and motherboard of a laptop can withstand 170W on the processor even for a year?), and then quietly and sneakily they reduce consumption in order to prevent premature product failures and not be subject to an increased frequency of warranty cases. Although the artificial slowdown factor cannot be ruled out either. Why are the criminal and vile moves of manufacturers in the computer hardware market painless for them? Yes, because, unlike cars, where, as we all remember, vile manufacturers deliberately lowered emissions in tests (at the same time, engine torque and power suffered - but these were different tests!), and then, on the contrary, increased power and emissions. When this was revealed in the auto market, what did these scoundrels do? Again, by order of the authorities, they forcibly reduced the engine power to a level that complied with emission requirements. As a result, they all immediately ran into class action lawsuits in which they were forced to pay huge sums to the affected consumers after updating the car's firmware. It's just that there is complete chaos in the PC/laptop market with the connivance of vile officials and the simple idiocy of the public, stupid consumers who, having discovered this, do not try to force both the authorities and the courts to compensate them for the loss of product characteristics. Why don't they try? Yes, because these very key characteristics of the product were NOT formalized in manufacturers' declarations or for purchase purposes by consumers (and this also depends on the consumer laws of the particular country!) In order for consumers all over the world to buy exactly what they expect based on false reviews of the first batches or according to the characteristics that were in the first versions of the BIOS (or before the elimination of security "holes", after which performance suffers), we need to formalize all these requirements for hardware at the state level, obliging the same laptop manufacturers to declare all levels of laptop consumption in official company documents. After such mandatory declarations of the same levels PL1/PL2, etc. any fraud with their changes in the future in the BIOS will be automatically punished by law, because this would be a violation of the contract with the consumer. And they will automatically be subject to class action lawsuits with huge losses, which will lead to the fact that they will have to think in advance about how to realistically solve the problem of long-term reliability and they will not be able to artificially slow down the hardware without compensating everyone who bought their laptops and other hardware.

Miki

29.03.2024

As of March 2024 the long-term power limits have been decreased as follows: Best power efficiency: 18 W -> 15 W Balanced: 27 W -> 20 W Best performance: 32 W -> 25 W These limits are reached after about 5 minutes of benchmarking. Looks a bit like planned obsolescence. At 32 W the CPU temperatures were kept below 80 °C so it's not thermal throttling, just an artificial limitation.

NikoB

14.07.2023

Quote from: French User on July 14, 2023, 02:45:36 Quote from: French User on July 14, 2023, 02:45:36 This is not a problem of the adapter and router, if the test is carried out within the line of sight - 2-4m and the transmit power on the router is set to 75% (DO NOT do 100%), but on the laptop adapter to High, but as antennas (and their connectors ) and shielding the signal with a metal screen cover, which automatically blocks, if there are no plastic inserts at the antenna output point, a 180 g viewing area for reflections, and wifi works on reflections. I have the same situation where a laptop with a plastic screen cover with an older 9560 easily puts out considerably more speed than a laptop with a metal cover + AX200. There is no way to solve this problem with the antenna arrangement used in this and many other laptops with a metal screen cover.

Dario GR

14.07.2023

buena relación calidad precio

French User

14.07.2023

Thanks for the review. FYI, I just received this laptop (a 21EB0041FR, I believe only the keyboard is different from the reviewed model) and it came with a MediaTek MT7921 (PCI ID 14c3:7961, subsystem ID 17aa:e0bc) chip for the WLAN, not a Realtek one. I replaced it with an Intel AX210 but I'm getting very similar performance with both cards (around 600 Mbit/s) in iperf3 on Linux connected to Netgear R7800 or WAX214 APs. Maybe the gap would be more significant if I were using APs supporting Wi-Fi 6E but still, the MediaTek adapter seems to be of better quality than the Realtek one.

NikoB

13.06.2023

Your usage pattern differs from Lenovo's and this site's methods, which is why there is such a difference in results. However, Lenovo claims that the AMD version has 7.7 hours more battery life when playing 1080p video at 150 nits of brightness and with the default volume value, in the case of the Ideapad 3 Gaming 2022 (we were talking about it, not the subject of discussion). For the ThinkPad E14 Gen 4 (AMD), Lenovo does not give the video playback time in psref at all, which is typical, while for Intel it is 15 hours. In the Ideapad 3 Gaming series, this time is indicated for both platforms and the AMD version gives 7.7 hours more in exactly the same testing conditions, according to tests from Lenovo. So the 6800H gives 7.7 times longer 1080p/150nit video viewing time than the Intel i7 Aldel Lake generation.