Can laptop hardware configuration data be changed? Something that LU Master can't even find out?
Generally, by brushing the bios, all you can do is go into the bios settings or the boot screen and see what's there.
LuMaster, the software that detects hardware, does so by reading the chips in the accessories to get the hardware information of the host.
If the content of the chip is modified to deceive you, they need to buy a burner, different chips have to buy a different connector, through the burner to burn the software into the chip, the process must be removed from the chip into the burner connector through the burner to re-burn software information, it is easy to leave traces.
And well-known manufacturers need to protect their own brand, so their software is strictly controlled, and rarely out of the country.
If not authorized by the manufacturers of national patent protection, private through other means to get their software, and through commercial activities to get the benefits of income, this behavior constitutes a violation of the law. To summarize, the risk of going to all the trouble of trying to trick you into cheating your eyes by using LU Master to detect these hardware detections is more than worth the risk! It's better to make some money by changing the parts on top of the hardware that aren't as well built and crafted, it's less risky, less costly, and easier to do seamlessly.
How to check whether a new computer is original and the real configuration?
Steps are as follows:
1, unpacking the box, be sure to pay attention to see if the box is intact, some times the box is broken is not always a problem, but the warehouse moisture, improper transportation may cause damage to the product, so do not let down your guard in the pre-opening of the box, especially ready to buy a gift of friends, if the box is not intact, you have a reason to ask for a replacement of a new machine.
2, with the help of the side of the box posters to check the machine model and configuration. Before opening the box, check the product model also need to pay attention to, when the dealer will be the laptop from the warehouse to transfer, we need to simply verify the product model and configuration, the general side of the box has the relevant content, such as Aspire5740DG-434G32Mn, experienced users will be based on the string of letters to deduce the basic configuration, for example, this product is equipped with a Core i5-430M processor The "M" at the end stands for a DVD burner, and the "n" stands for a built-in wireless card that supports the 802.11n protocol.
3, some of the time through the notebook model can be initially judged by its configuration to see the seal, check the model is the basis of the work before opening the box, verify that there is no error before the hands of the seal, do not wait to open the box only to find that the business "take the wrong" machine, buy a medium but became a low or high, to the bad business to the transformation of the opportunity.
4, - unboxing inspection need to pay attention to the first step to check whether the seal is intact, many consumers are familiar with this point, to see whether the seal has been torn traces, it is worth noting that some laptop packaging box above and below the seal design, we sometimes only notice the top of the seal, often ignoring the seal below, in fact, the laptop can also be taken out from the bottom, which needs to be This is something you need to pay more attention to.
5, box seals and transparent tape, tear open the seal before, observe whether the surface is flat, tear open the sticky part of the attention to see whether the sticky part of the uniformity, some dealers have used a hair dryer to blow open the seal, and then use both sides of the adhesive glue will be re-glued, so pay attention to see whether there are traces of artificial paste, some models of seals under the sticker with a brand logo printed on the transparent adhesive tape, the same need to check. (The fact that some branded products are not designed with adhesive tape does not indicate that they have been taken apart.)
6, the seal on the lower part of the box needs to be carefully checked, some products use double box design well, the above steps are done, we can open the notebook box, in addition to the need to be careful, it is best to choose a better environment for unpacking, there is no clutter on the writing desk or a clean table can be.
7, double-check the accessories in the box is complete, unpacking the box, we do not need to focus on the host first, first of all, the things in the box one by one out of the flat put, and in accordance with the packing list to check the box is complete (not all notebooks have a packing list), if less than one of them (the warranty and the three packs of certificates, manuals and driver CD-ROM, standard lithium-ion battery, power adapter), then at least it can indicate that the box has been unpacked or boxed with omissions, we can refuse to buy.
8, laptop purchase in the three code verification, many electronic products now have "three code verification", then what is the three code? Laptop three code refers to the SN code on the product box, the host of the SN code on the bottom of the sticker as well as the SN code on the certificate of the three packages, the new machine three code must be unified, this point for the first time friends need to remember, so as to avoid buying an unknown way of the machine, and may affect the warranty service. After checking the three codes, we can put all the energy on the host, after all, this is the box in the big things, but also in many details need to check. As of now, the top cover of the notebook is usually dominated by a piano baking paint process or a material with a frosted feel. For the former, the top cover needs to be scrutinized for fingerprints, while the latter needs to be checked for wear and tear.
9, body details do not give up, the configuration is to reflect the parameters of product performance, and interface layout as an aspect of ease of use, the attention of the user is increasing day by day, in fact, in the process of checking the machine docking checking is also essential. Among them, the USB2.0 interface and computer lock hole most commonly used in the environment of the noisy computer city, in order to achieve the purpose of improving the operating experience and anti-theft, some merchants will use an external mouse and computer lock, and therefore may cause some wear and tear on the interface parts of the laptop, which need to pay more attention to this point.
10, around the body of the various interfaces to check whether the gold finger scratches, is the basic method to test the battery is new, although the prototype in the store most of the external power supply, but also some of the few molecules have problems. After a period of use, the cooling window located on the side and bottom of the body will often have dust intrusion, inspection should pay more attention to such parts.
Open the notebook optical drive, check the optical drive metal parts whether there is wear and tear, inhalation optical drive is very important, a friend of the side had told the author, a few years ago, a purchase experience, its discovery of the optical drive also put a WindowsXP installation disk, encountered such a situation, we have to resolutely return the replacement.
11, cooling window and screws check, gold fingers and bottom feet check, the bottom of the body of the feet and screws are often ignored by friends of the purchase of the machine, in fact, the notebook was placed as a prototype, the bottom corner of the wear and tear is still quite large, the new machine's rubber feet are usually smooth, no dirt, prototype due to the long time placed in the booth in this regard may reveal traces, if found body If you find scratches on the screws, then you need to be even more vigilant.
12, piano lacquer top cover is easy to leave fingerprints, frosted texture top cover is easy to cause scratches, after checking the top cover, we open the screen, you can feel the damping strength of the spindle, in general, the damping is large may be the manufacturer's design as if you think that the spindle is too loose, it is likely that the machine had been used as a trial prototype in the store.
13, the screen spindle damping is usually not too loose, for work reasons, in the store can often be seen in the experience of the product consumers, in addition to the screen "pointing" in addition to the keyboard or the use of a few touchpad are "routine", so in addition to the body of the consumer, the touchpad is a "routine", so in addition to the body of the consumer, the touchpad is a "routine". "Therefore, in addition to the top cover of the body, the keyboard, the wrist rest and the touchpad where the C surface in the inspection of the machine especially need to pay attention to.
14, the keyboard and the touchpad surface whether there is oil stains, wrist rest on the sticker is not flooded with burlap, experienced friends know that some of the parts of the use of ABS plastic due to prolonged use is easy to leave behind the oil stains and dirt. When checking the machine, you need to check whether the keyboard, touchpad surface is brand new, whether the keycaps are too loose, whether the various logos on the wrist rest have traces of wear and tear burlap, are an important means of identifying new products.
Replacement of a graphics card, the computer can boot up normally but the monitor does not have a signal is how?
Hello can be used in the following ways:
1, exclusion method: first of all, look at the replacement of the graphics card model is compatible, for example, before the old graphics card is ATI, but the replacement of the NVDIA graphics card, if this is certainly not. The old graphics card driver is still on the computer, the replacement of the new graphics card is not compatible with the old, certainly not.
2. It is recommended that you find a compatible graphics card, first of all, install the old graphics card. Then, after booting up the computer and displaying normal, go to the control panel to uninstall the graphics card driver; then turn off the computer. Then unplug the old graphics card and insert the new one. After that, you should be able to enter the system and display. Of course, the screen may be distorted. It doesn't matter, just download the appropriate drivers and install them.
Videocard (Videocard, Graphicscard) full name display interface card, also known as the display adapter, is the most basic configuration of the computer, one of the most important accessories. As an important part of the computer mainframe, the graphics card is a digital-to-analog signal conversion device that provides the output to display graphics.
The graphics card is connected to the computer's motherboard, which converts the computer's digital signals into analog signals for the monitor to display, and at the same time, the graphics card still has the ability to image processing, which can assist the CPU to work and improve the overall operating speed.
Hope to help you
What does display adapter mean?
The full name of the graphics card is display interface card, also known as display adapter, is the most basic configuration of the computer, one of the most important accessories.
Graphics card as an important part of the computer mainframe, is the computer for the digital-analog signal conversion equipment, bear the task of output display graphics graphics card connected to the computer's motherboard, it will be the computer's digital signals into analog signals so that the monitor to display out, at the same time the graphics card is still an image processing capabilities, can assist the CPU to work, to improve the overall speed of operation. The purpose of the graphics card is to convert the display information required by the computer system to drive the monitor, and provide progressive or interlaced scanning signals to the monitor to control the correct display of the monitor is connected to the monitor and the motherboard of the personal computer is an important component of the "human-computer dialogue" is one of the important equipment.