First introduce my notebook, HP pavilion 14 series, purchased at the Gome store at the end of 2013. The purchase was mainly due to its relatively high cost performance. . . . This lovely little book accompanied me through a wonderful university time, immediately graduated, and reluctant to change it. . (Is writing this article with it?)

The following is the hardware information detection of Lu da Shi.

Lu da shi run points:

Reasons to purchase

A penny-a-goods statement is not bad at all. At that time, the computer came with the ubuntu system. With the help of the roommate, it installed win7 (win7 was the latest one in 2013). Then began the days of the card machine, really super slow, boot close to 2 minutes. . . What can I say again? The Poor Student Party can not be replaced with new ones. . I remember that SSDs were still expensive in 13 years. Until the second half of 2015, the boys in our class began to change the solid state. I looked at the prices. Hey, it was less than 300 in a roommate. The Samsung 750EVO was selected for the recommendation.

Taking into account his usual frequency of use and his own small treasury, decided to buy a 120G SSD to serve as a system disk, decorate the usual software is fully enough. The original computer's 1T mechanical hard disk was used to load data, but its own notebook had only one SATA port. Unlike some good machines, the mSATA hard disk was reserved. Everybody's solution was to remove the optical drive. The original hard disk was placed in solid state. , buy an optical drive hard drive bay to put the mechanical hard drive. The SSD is the system disk, and the configuration of the mechanical disk as a storage disk also requires an optical disk drive bay. It then goes to a treasure and buys an optical drive disk bracket, which completes the modification.

Optical drive bay

The original mechanical hard disk:

Appearance Gallery

Well, I bought it for 15 years. At that time, I hadn't contacted Zhang Aunt. Fortunately, the box is still in her hand.

Front of the box

The back of the box

Instructions

Open the back cover of the notebook and you can see the Samsung 750EVO lying there quietly. Too troublesome, I didn't remove it. .

Open the notebook back shell

Hard disk close-up

Close-up photo

Now the price of the 750EVO seems to have risen a lot. . .

The difference between the price of a treasure is relatively large, a certain East 399.

Samsung 750evo 120g_Taobao search Taobao search is the most intelligent product search engine, through the operation of big data, accurate understanding of goods and users, to provide accurate personalized search experience. Direct links to s.taobao.com Samsung (SAMSUNG) 750 EVO 120G SATA3 Solid State Drive 399 yuan installation is very simple, incredibly fast. 11-year computer boot only 7 seconds. And the usual waiting time has disappeared. Put the system on the SSD, and the game will play quickly. Playing lol other people have not been loaded, I have entered for a long time, burst! Very nice baby, good comment. Basic parameters: continuous reading speed of 540MB/s and continuous writing speed of 520MB/s. Random reading/writing speed is divided into Jingdong direct links.

The boot time when the solid state was just installed (the screenshots were saved in that year.)

AS SSD Benchmark Run Points:

Date:2015-12-24

Date: 2017-02-02

Samsung Magician basic information:

Date: 2017-02-02

Samsung Magician Run Points:

Date: 2017-02-02

The system now used is the win10 Enterprise Edition, which is equipped with 360 International Edition. The boot is basically about 10s.

There are no obvious cattons when you turn on the software such as the PS. It is fast and it feels good. From the above run points can also be seen, Samsung 750EVO did not slow down because of the use of a year. I didn't play games and didn't send us the feeling of playing games. . I installed all of the usual software in the solid state, booting and opening the software are flying ~ ~ mechanical hard drive stored in the usual data.

experience feelings

Samsung/Samsung 750 EVO 120G SATA3 SSD Solid State Drive: Fast, easy to install, stable to use, no obvious problems, big brand quality guaranteed. The last word summarizes, in the end the value is not worth buying, of course! By using the solid state, it is known that mechanical hard disks can only be used to store data. .

These are personal feelings, do not like not to spray.

Industrial Control PCB

What is an HDI board?

HDI is an abbreviation for high-density interconnection. It is a (technology) for the production of printed circuit boards. It is a circuit board with a relatively high line distribution density using BVH PCB technology. HDI is a compact product designed for small-capacity users. The Quick Turn PCB adopts a modular design that can be connected in parallel. One module has a capacity of 1000VA (1U height) and is naturally cooled. It can be directly placed in a 19" rack, and a maximum of 6 modules can be connected in parallel. The product adopts all-digital signal processing (DSP) technology and A number of patented technologies have a full range of load capacity and strong short-term overload capacity, regardless of load power factor and crest factor.
HDI PCB is a high-density interconnection (HDI) manufacturing printed circuit board. The printed circuit board is a structural element formed by insulating materials and conductor wiring. When the printed circuit board is made into the final product PCBA, the Originality Electronics IC, transistors (transistors, diodes), Electronic Resistor And Capacitor and various other electronic parts will be installed on it. With the help of wire connection, it is possible to form an electronic signal connection and function. Therefore, the printed circuit board is a platform that provides component connection and is used to accept the substrate of the connected parts.

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Since the printed circuit board is not a general terminal product, the definition of the name is slightly confusing. For example, the motherboard for personal computers is called the motherboard and cannot be directly called the circuit board. Although there are circuit boards in the motherboard, it is not They are not the same, so when evaluating the industry, the two are related but cannot be said to be the same. Another example: because there are integrated circuit components mounted on the circuit board, the news media call it an integrated circuit board (IC board), but in essence it is not the same as a printed circuit board.
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While electronic design is constantly improving the performance of the whole machine, it is also working hard to reduce its size. In small portable products ranging from mobile phones to smart weapons, "small" is the eternal pursuit. High-density integration (HDI) technology can make terminal product designs more compact, while meeting higher standards of electronic performance and efficiency. HDI is currently widely used in mobile phones, digital (camcorder) cameras, MP3, MP4, notebook computers, automotive electronics and other digital products, among which mobile phones are the most widely used.
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HDI PCBs are generally manufactured using a build-up method. The more build-up times, the higher the technical level of the board. Ordinary HDI boards are basically one-time build-up. High-end HDI uses two or more build-up techniques, while using advanced PCB technologies such as stacking holes, electroplating and filling holes, and laser direct drilling. High-end HDI boards are mainly used in 3G mobile phones, advanced digital cameras, IC carrier boards, etc.

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