Может ли 7-дневная полная 100% загрузка процессора «прожечь» / «стресс-тест» повредить современный ноутбук?

Can damage? Yes. Should damage? Usually not. It will reduce the lifetime though, and I do not see any benefit of doing such an extreme burn-in for workstations or even laptops - you'd get nearly all of the benefits by running the same tests for 10-30 minutes, instead of 150 hours.

When you use a device, there's wear and tear. Lifetime of components is not infinite - many components die after a few years of normal use (some even after a few months) even though they should last forever.

There are some things to consider in your case:

• Some Notebooks are quite simply not designed to run continuously at maximum load for ~150 hours straight. For most laptops, the cooling can not keep up with running the system at max load, so when the temperature increases the system reduces max speed to protect itself from overheating. That means the system will run at full speed, get hot, throttle, get cooler, release the throttle, get hot, throttle, get cooler, et cetera. The frequency and the severity of these temperature changes depend on the laptop. This will shorten the lifetime of components.
• Anything with moving parts, such as hard disks, will degrade by being used.
• SSDs, despite having no moving parts, have limited lifetime based on how many writes are made on the disk.

Engineering always involves compromises. When designing a PC, one goal is to keep costs for production down while also keeping costs for warranty repairs/replacements down. This involves designing for the most likely usage scenarios. Unlike laptops, servers can be expected to run under load 24/7, which is why they are designed to last longer than consumer desktops and laptops. That increases their cost (just compare prices of server hard disks to those of consumer hard disks).

There are several products which will do a better and more efficient job of stress testing new hardware than simply running the CPU. Overclockers use these tools to test out how much they can overclock various pieces of hardware before the system becomes unstable. They do not run the software for a week, a few minutes will usually reveal a problem, maybe an hour if you want to really be sure.

• PassMark BurnInTest
• Prime95
• NovaBench
• 3DMark
• PCMark

I looked up some information on the brominated flame retardants the OP mentions, particularly Polybrominated Diphenyl Ethers (PBDEs), and there is concern about their bio accumulation. The CDC has a nice fact sheet about them. Note that the section entitled "What are the routes of exposure and the health effects of PBDE and PBB?" does not mention vapors from electronics. It does state that "PBDEs may enter the environment through emissions from manufacturing processes, volatilization from various products that contain PBDEs, recycling wastes and leach from waste disposal sites" citing ATSDR 2004. ATSDR's fact sheet on PBDEs in "How might I be exposed to PBDEs?" states these ways you might be exposed to PBDEs.

• The concentrations of PBDEs in human blood, breast milk, and body fat indicate that most people are exposed to low levels of PBDEs.
• You may be exposed to PBDEs from eating foods or breathing air contaminated with PBDEs.
• Workers involved in the manufacture of PBDEs or products that contain PBDEs may be exposed to higher levels than usual.
• Occupational exposure can also occur in people who work in enclosed spaces where PBDE-containing products are repaired or recycled.

In short, unless you're working directly with PBDEs and eWaste you're not going to be exposed any more than you already are.

Be sure not to confuse PBBs, which have been shown to be probably cancerous and have been banned since the 70s, with PBDEs which are still being studied and have only been partially banned.

As for "burning off" these problems, I would need a citation on that from a reputable study that A) it's even a problem to begin with and B) that running a laptop hot does anything to solve the problem. As you can see in the CDC fact sheet, the boiling point for all PBDEs is over 300C. Your CPU is not going to get much over 80C.

UPDATE @Fuhrmanator found an actual study about the chemicals coming out of computers and printers! Before you freak out about all the pretty graphs and scary chemical names, note that this is one study on a few computers and printers which is a sample size too small to draw general conclusions.

The study's conclusions about having computers and printers in a small (20m^3) room is "it's probably ok, but might accumulate, and we need more data". The relevant points are...

• "In almost all cases the computer and printer emissions give rise to concentrations well below guideline levels"
• "Formaldehyde emissions from computers and dibutylphthalate emissions from printers are possible exceptions—emissions are estimated to come close to or exceed the guideline limits"

Also note that printers are way worse than computers, laser printers worst of all.

And the report does conclude that "'Aging' of computers led to a reduction in chemical emissions". While it doesn't say anything about running at 100% CPU, running it for a couple days in a well ventilated place before putting it into cramped quarters might help.

7-дневный прожиг не должен повредить ваш ноутбук, и если он это сделает, то он изначально был неисправен. Мой ноутбук без каких-либо проблем работает над проектами распределенных вычислений в рамках BOINC уже более 7 лет, и температура ЦП все время была между 70-80 ° C.

На самом деле, я думаю, что даже могут быть некоторые преимущества! Повторный нагрев и охлаждение сокращает срок службы различных электронных компонентов и может усугубить проблемы с холодными паяными соединениями, если таковые имеются. Термопаста на процессоре может ухудшаться медленнее, когда температура высокая, но стабильная. Постоянно работающий вентилятор ЦП на одной и той же скорости также может быть лучше, чем его циклическое переключение с 10% до 100% при изменении нагрузки.

Я понимаю, что это всего лишь анекдотические доказательства, но мой опыт, похоже, говорит о том, что в этом есть доля правды.

Изменить: Чтобы решить вопрос жизни SSD, вам, вероятно, не нужно слишком беспокоиться. Современные твердотельные накопители могут выдерживать огромное количество операций записи, семь дней тестирования ничтожны по сравнению с тем, что может выдержать диск. Ребята из The Tech Report решили провести эксперимент и надругаться над несколькими SSD, пока они не умрут. Некоторые даже пережили колоссальный петабайт записанных данных.

http://techreport.com/review/27062/the-ssd-endurance-experiment-only-two-remain-after-1-5pb

В ответ на ваш отредактированный вопрос дизайн ноутбука является результатом компромисса между множеством факторов: размером, весом, временем автономной работы, производительностью, охлаждением и т. Д. Средний пользователь не будет использовать 100% ЦП на неигровом ноутбуке для больше, чем на секунду или две *, поэтому обычным компромиссом является снижение охлаждающей способности в обмен на более тонкий компьютер.

Нет, ваш ноутбук не предназначен для работы на 100% ЦП в течение нескольких часов подряд. Из-за других защитных мер, таких как тепловое дросселирование процессора, это не должно приводить к отказу компьютера в течение гарантийного периода. Предупреждение о том, что процессор не будет перегружен, вероятно, уменьшит продажи и не даст никаких преимуществ производителю, поэтому его не будет.

* Например, я запускаю программное обеспечение для мониторинга системы на своем рабочем столе, которое регистрирует загрузку процессора. Самый большой всплеск неигровых процессоров за последнюю неделю длился менее пяти секунд.

This is in response to your recent edits.

CPU Issues

Even if I knew the specifications of your system, I could only speculate about your hardware. However, you can hit the Googles and find out if other people have had problems with your laptop model or its constituent parts...so I'll leave that as an exercise for you.

However, there is some general information I can give that's true for both AMD and Intel processors. When AMD or Intel release a new line of processors, they come out with different processors at different clock rates. For example, they might have 1.8 GHz, 2.3 GHz, 2.8 GHz, and 4 GHz. Now, people get the impression that these four types of processors are different, but they're really not. They all go through the exact same manufacturing process. In fact, a 2.3 GHz CPU could have been right behind a 4.0 GHz CPU on the conveyor belt at some point.

What's the difference, then, between the two? Intel tests their processors themselves - their own kind of stress-test - and they test all of the CPUs the same. The resulting frequencies are determined by the stability of the CPU under test. If the CPU can run at 4.0 GHz and remain stable, then Intel sell's it as a 4 GHz processor (in some cases, these are their 'extreme' edition processors, which sell at $1,000+). If the CPU has too many manufacturing defects, then it won't be stable at 4 GHz, but it might be stable at one of the lower frequencies, like 1.8 GHz.

A common mistake among overclockers who learn about this think they can buy the US$300 Intel processor, overclock it to the extreme edition and get more bang for their buck. In all likelihood, they can get away with it for a while, but it will succumb to instability eventually (instability in this case may or may not have anything to do with temperature). For non-overclockers, this has a different implication. If you buy a low-end processor, you're buying a processor that was in the 'not crappy enough to throw away, good enough to make some customers happy, and not good enough to make much profit' bin. If you stress out a low-end processor, it's not going to remain stable for very long. Heating it up will exacerbate its manufacturing defects sooner. Some low-end CPUs have proven to be very robust over the years; most are not so fortunate. It's really a question to ask the folks at Toms Hardware or other online hardware forums where you can have a proper discussion.

SSD Issues

This is even more speculative, since I'm not 100% sure about SSDs. The one thing that's resonating in the thread so far is that SSDs have a maximum life-time of writes. This is simply a constraint on the technology. It was a huge barrier when SSDs were starting out, and software had to be developed that would essentially load-balance writes to SSDs (completely transparent to system users, of course). I don't know the exact numbers, but let's say you can write to each memory location 1,000,000 times. During normal use, this probably means you have years if not decades to go before the physical device degrades. By doing a burn-in test, you're essentially forcing years of work on your physical devices. There's no way for me to tell you how much you degraded the SSD (if at all), but if you aged it even a year or two during that seven day test period, you would see the effects fairly quickly. Regardless of immediate degradation, you're just shooting yourself in the foot by testing your storage so rigorously. Even HDDs regularly fail. Ask a person who runs a lab, and they'll probably even be able to tell you the failure rate of their HDDs off the top of their heads.

As far as temperature goes, 40 °C sounds reasonable, but I don't know anything about SSD temperatures. You should probably search for answers (or ask here on superuser) from people who would know if there are issues with SSDs running for long periods at 40+ °C. SSDs are relatively new technology, and pushing them to their limits is bound to find issues. I'd be willing to bet that any issues you have with your SSD are more likely caused by too many writes rather than temperature. To give you a sense for the oddities of SSDs, just today on Slashdot there was an article from Samsung about SSDs taking a long time to access information that hasn't been touched in a month. On a HDD that would be a non-issue, but for SSDs it apparently is.

Running at full load makes CPU fan to pass lots of air through the heat sink. Unlike a desktop heat sink, it may be very difficult to clean up, requiring at least to open laptop and in my case even to remove the CPU. See how my laptop heat sink looked like after several years of heavy computing:

So quite often clogged heat sink means the end for the laptop.

As a result, I would recommend to avoid running laptops at full load, especially without the need. A new laptop will keep running, but it will already be some dust in the sink. Unless you have some dust-free environment like server room to burn them in, or maybe some external dust filter could help.

Desktop machine that is trivial to clean up and may even feature removable dust filters is more appropriate for computationally heavy tasks.

У меня был неоднозначный опыт работы с ноутбуками, справляющимися с теплом - проблема для многих из них заключается в том, что они излучают тепло через основание, а в некоторых ужасных конструкциях вентиляция основного вентилятора в основном направлена ​​вниз, поэтому сидение на несколько мм над столом является второстепенным. оптимальный.

Я положил свои ноутбуки, которые будут иметь большой спрос на них, на перевернутый провод «в лотке», который обеспечивает широкую поддержку с несколькими сантиметрами пространства под ним и абсолютным минимумом контакта с ноутбуком.

Большую часть времени редко можно услышать, как поклонник Macbook Pro появляется в этом положении.

Я только знал, что ноутбуки Apple нагреваются, иногда болезненно, но Lenovo ломаются и становятся очень ненадежными из-за перегрева.

In my 15 years of IT I have never heard of anyone doing such a thing, small burn ins after overclocking maybe but that's it.

Why not just buy a device then use it, if it breaks I tend to get it repaired under warranty or replace it.

I tend to not try and break my device for 7 days prior to me using it then wonder if I might have damaged it during this testing process.

There is no reason for a burn-in in a disposable device like a modern notebook. The life time of the device is only about 1 year anyway. The manufacturer will replace the DEVICE if it is defective. If you need some kind of data integrity, buy it. Buy some cloud space and mirror your configuration there.