This article will introduce a somewhat age – sensitive, low – power, relatively inexpensive MiniPC: NUC7CJYH. After using it for half a year, I felt it was the right time to “play” it.
Writing in the front
A small NUC7 was purchased in early March this year. There are three reasons for purchasing this backward equipment:
- Before using CDH to run some simple services, because there is disk read and write, resulting in the disk can not sleep. Electricity does not say, there will be a faint disk running sound, can not bear. I wish I could use a different device for these services to make my ears feel calmer.
- Previously, Confluence and some services that required remote access ran on EliteDesk home servers, and I frequently rebooted the new device environment as the device was updated to “laptop.” I want a stable new environment to run them.
- I wanted the device to be quiet enough, and since it’s 7×24, I wanted it to be relatively power-efficient.
I bought a NUC8 earlier, and I am quite confident about the continuous running service of NUC, a Mini PC. However, the poor heat dissipation and high fan noise of NUC8 make me feel helpless. (For the solution, see Recent Heat Dissipation Upgrade Records of Household Equipment (NUC, Cat disk, router).) The main reason for this problem is that the CPU power consumption is too high, the chassis’s heat dissipation capacity is limited, and the built-in small fan cannot handle the heat discharge. So, can I solve this problem if I use a much lower power Celeron CPU? **
Having previously purchased j3455 (CDH DS720+) and J4125 (CDH DS 920+) equipment and used them to run some container services, I am confident in low-power cpus similar to the Celeron series. NUC has so far launched two devices with acceptable performance and low power consumption, namely NUC7PJYH (J5005) and NUC7CJYH (J4005). Although CPU named are j at the beginning, but the two belong to “pentium” and “native” two series, although the two are continuous “thousands of” naming, seemingly across a generation, but in fact the release time almost are the same, the main difference is that the former’s frequency is lower, but the core number one times that of the latter, of course, price of bare, The former is a little more expensive. Since I used to use “Celeron” series of low-power devices, and THE store I bought happened to only receive the “J4005” version, so I also bought this “low-equipped” version.
Hardware specifications and configuration list
Review the configuration of the machine again and you will find a treasure host (allowing you to save money passively) :
- Only one SATA hard disk bit is equipped.
- NVMe is cheaper than NVMe, and because the CPU is relatively weak and you don’t need to use it to run heavy software, you can end up with a smaller storage option. And because it’s SATA, any SSD can reach the bandwidth ceiling.
- Only ddr4-2400 dimMs are supported, and the upper limit is 8GB (the actual system shows that the motherboard supports 32GB memory).
- Compared with 3200/3600/4000+ frequency memory, 2400 memory price is also a lot cheaper, and even do not need to pursue multiple channels, just insert a line.
Due to NUC’s well-known “buying culture”, the new quasi-system has an actual price of 799. (prices earlier this year, should now is cheaper) before considering I just run the software mentioned in the article, and hope the machine as far as possible “keep quiet” at run time, hard disk just bought a 200 s plextor, memory, is a replacement for use before the upgrade of air that Pro gloway implement memory chips, comprehensive cost around one thousand yuan. The normal operation power consumption is between 1W and 4W, and the annual electricity cost is about 17 yuan. Considering that the machine can run continuously for 3 to 5 years (the first 3 years are officially guaranteed), the annual cost is less than 200 yuan, equivalent to about 0.5 yuan per day, which belongs to zhenxiang series.
Put away the books, throw away the specs, and see what services I ran with it.
Run the service
As mentioned above, this device is mainly used to provide the following functions: document knowledge base, page favorites, RSS, remote access, wake up network, scheduled tasks.
Document knowledge base
I initially used it to run Confluence, a well-known resource user, and the actual performance on this device is quite good. Almost all pages are open in seconds. With FRP and some front-end optimization, it can achieve a silky experience that is still open in seconds when not at home.
However, since it was officially announced that I would no longer sell licenses and only provide overseas online SaaS services, although my licenses would expire in 2022, I had to make preparations for a rainy day in consideration of long-term use. In a roundabout way, I eventually switched to an open-source solution with lower resource requirements: Outline.
Page favorites
Given the increasing rate of obsoletion on the web these days, using hyperlink bookmarks to save well-written reference material is a sure way to end up with a “404 Not Found” or “repurpose address”.
And if it’s left unorganized and piled up in the note-taking system, the note-taking system becomes bloated and stinks because of the unstructured content.
After lingering between hypothesis and ArchiveBox for a while, I finally decided to use the latter for persistent web memory for the time being. The latter, combined with Sonic (a lightweight implementation similar to ES), can easily achieve cost-effective full-text retrieval.
If you just want to completely self-manage your favorites, consider Shiori. However, in May, I provided two PR to the official, so far there has been no maintainer feedback and merger.
RSS
Miniflux is a “cost effective” self-deployment software with very low resource usage and a simple interface. You can either browse information using its own Web interface or read it using a Fever protocol compatible reader such as Reeder.
The remote access
If your network environment can provide direct links, using DDNS direct access can be very good access quality, with your own DDNS services (such as Providing DDNS services with Nginx), safe and reliable to use.
However, if you have a domestic cloud server (even 1c1G shared bandwidth small host), it is a good plan to use as a backup line. (For example, “Containerized FRP Usage Scheme”) Compared with the first scheme, there is no need to worry about the sudden change of broadband operator’s policy and the unavailability.
Wake on LAN
In contrast to this device, there are devices that I don’t want to run in the same 7×24 mode, but start up on demand and provide service.
Although the router supports wake up on the network in the background, it is not secure to directly access the main route that has the network management rights of all devices even if it is encrypted. So, I wrote a simple little service in Node for quick shutdown of specified devices and quick wake up on the network.
Schedule a task
Although all the services I use can run with Docker, and all can do scheduled tasks and Health checks through the container “Health Check” to ensure the stability of the service. However, it would be “environmentally unfriendly” to use Health Check to refresh scheduled tasks. In addition, there are occasional scheduled tasks that need to be carried out. I use a piece of software called Cronicle for task execution and monitoring.
other
Since its purchase, this device has hardly ever run a graphical interface program (BIOS Settings still have to be under a graphical interface), so if you want to know how good it is to attach a monitor or two to it, I can’t answer you.
However, in terms of using it to run the above services stably in the manner of the container, with almost no temperature throughout the machine enclosure, I think this device is a good buy.
About the use of the above software construction, first dig a pit, later slowly tidy it up.
The last
Most of the time, the problems we encounter can be solved by “the pony crossing the river”.
–EOF
We have a little group of hundreds of people who like to do things.
In the case of no advertisement, we will talk about software and hardware, HomeLab and programming problems together, and also share some information of technical salon irregularly in the group.
Like to toss small partners welcome to scan code to add friends. (To add friends, please note your real name, source and purpose, otherwise it will not be approved)
All this stuff about getting into groups
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This article is published under a SIGNATURE 4.0 International (CC BY 4.0) license. Signature 4.0 International (CC BY 4.0)
Author: Su Yang
Creation time: on October 19, 2021 statistical word count: 4311 words reading time: 9 minutes to read this article links: soulteary.com/2021/10/19/…