installation of the hard disk screws on both sides of the screw screw
9, the Power supply box power cord and hard drive data cable connected to the motherboard power box to the hard disk power supply of the split line do not forget to the hard drive to connect
10, to here basically the assembly is completed if you want to add graphics and optical drive can be completed after these steps to continue the installation
11, in the insertion of small joints, loo
First of all, to solve the computer speakers have a murmur of the idea is to first exclude the speaker is not the problem, and then eliminate the system and sound card driver, equalizer settings, such as software problems, if the above methods are not the cause of the problem, then you can consider is not the motherboard above the audio part of the The bottom line indirectly leads to the occurrence of such situations.
First the Speaker power supply alone, such as a USB charger for mobile phones
thing to note is to unscrew the cover, upgrade the memory, the first to shut down, unplug the power adapter, remove the battery, in addition to a winter in the hands of static electricity, in the replacement of memory before the first touch metal, Lest accidentally let electrostatic breakdown motherboard.
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electrostatic, should wash hands beforehand, or touch a metal conductor, to eliminate its own static electricity.
7, self-diagnosis
In the course of operation, we should pay attention to the operation of computer parts, such as making abnormal noises, frequent crashes, peculiar smell, etc. At this point, to cool off the power, you can open the chassis cover to see if there are any signs of loosening the fan and other parts. Because the
1.BIOS Setup Issues
One of the BIOS settings is an automatic boot, check the automatic boot function is set to "Enabled", so that the computer will automatically boot at the time set.
The BIOS also has a call automatic power-on function, check whether open, must be closed.
2. Hardware failure
If you confirm that the problem is not BIOS setup, it may be electrostatic or hardware failure, you must take the following steps
First to the motherboard d
When cleaning a computer screen, it is best to use a softer cloth to wipe.
The trick is to turn off the computer screen for a long time.
In daily work and life, if you do not use the computer for a long time, through the keyboard function keys temporarily only the LCD screen power off, so that not only can save power and prolong the screen life. In the process of closing the LCD screen do not force too large, and do not place foreign bodies between the keyboard and display screen, so
1, the first notebook of external power unplug, the use of battery power supply, if the leakage of the situation disappears, it is the problem of the socket wire; First unplug the external power supply, using battery power. If not disappear suggest to take to repair, if leakage condition disappears, then indicate is the problem of socket ground wire;
2, confirm that the socket has no grounding, you can use a simple method is a pen or multimeter to test the socket, if the ground voltage is zero,
time can not give power to the machine, lest cause short-circuit and other unnecessary losses. Humidity is too low easy to produce static electricity, the same use of accessories is unfavorable. In addition, the dust content in the air has a greater impact on the computer. The dust is too big, will corrode each part, the chip circuit board for a long while, the content is too small, will produce the electrostatic reaction. Therefore, the computer roo
power to the motherboard? We let the user carefully examine the battery seat on the motherboard, especially the shrapnel at the bottom. The shrapnel is resilient and can be well contacted with the battery, which is not the cause of the problem.
3. Electrostatic interference
Is it possible that the motherboard has accumulated a large amount of static electricity, causing interference to the motherboard line? We let the user find a wire, tied to the
of the distortion caused by it is limited to the refutation of some "burning friends" high-end speech, in fact, jitter The distortion that can be caused is much smaller than other distortions generated by the circuit itself, so that the effects can be ignored.
Compared with the jitter can bring the impact of sound quality, amplification circuit has a significantly greater impact. Because of the technical limitation of the amplification circuit components, the output signal of the digital analo
and drive type corresponding inconsistent, version inconsistent. This problem is very simple to solve, the original graphics driver uninstall reinstall.
The way to uninstall the drive is: My Computer--right "properties"--hardware--Device Manager--Display card--right--uninstall. The way to detect whether a graphics driver is a problem is simple: In Windows XP, for example, if the computer is booting into a scrolling wait screen, if the XP logo is correctly displayed red on the system but cannot
clear pause, when the above problems, you should look at the DMA mode of your hard disk is not by the Windows system itself shut down. To see if your system turns on DMA mode:
A. Double-click Administrative Tools, and then double-click Computer Management;
B. Click System Tools, and then click Device Manager.
C. Expand the IDE ATA/ATAPI controller node;
D. Double click on your "Primary IDE controller";
2, the CPU and fan is normal operation and enough refrigeration
When the CPU fan speed
Liquid crystal display screen (LCD Panel)
Long time does not use the computer, may through the keyboard function key temporarily only then the liquid crystal display screen power supply closes, besides saves the electricity also to extend the screen life.
Do not force the lid on the LCD screen or place any foreign body between the keyboard and the display screen to avoid damage to the internal components caused by the heavy pressure on the cover glass.
Do not touch the surface of the screen w
CRT Tube Focusing performance: CRT projector to the input of the source signal decomposition to the R (Red), G (green), B (blue) Three CRT tube on the screen, under high pressure, light-emitting, after the signal amplification and convergence, the large screen display color image. CRT tube Focusing is divided into three kinds of electrostatic focusing, magnetic focusing and electromagnetic composite focusing, the application of electromagnetic composi
article will be the relevant knowledge of the printer, in order to enable users to really enjoy the good printer for us to bring the wonderful!
First, the development of printers, market situation
Depending on the output effect, the printer is mainly divided into laser printers, inkjet printers, stylus printers and other special function printers; For many ordinary users, needle printers and other special features of the printer is not a lot of opportunities, so the focus of this article is t
Not long ago, the notebook computer keyboard suddenly failed, some key invalid phenomenon. After the understanding that the keyboard is broken, through the demolition of the self-replacement after the return to normal. The following is the general process of replacement, for reference only
1, first prepare all the necessary tools and instruments. There's a static wrist here. Can prevent electrostatic, protect electronic components from breakdown
2
directly from the bottom to send out, so the phenomenon of the folder is greatly reduced. However, some printing paper in the printer "flip-body" design of the printer, it is relatively easy to appear the phenomenon of cardboard. In addition, as a result of electrostatic absorption of multiple sheets of paper, or printing paper uneven warping, it is possible in a variety of inkjet printers appear folder paper phenomenon. In this case, you must not be
cleaning. However, this removal of the hard drive is to be careful. There is a great deal of learning.
1, can not touch the hard disk on the back of the circuit board, because in the climate is dry, people may have static electricity in hand, in this case, touch the hard disk on the back of the circuit board, "electrostatic" may damage the hard disk on the electronic components, resulting in a hard drive failure.
2, take the hard drive when you sho
, the spirit of the network security Gateway VS-100U3 Safety Gateway products for the standard 1U structure, the use of anti-static electrolytic plate machine over the shell, this shell can effectively prevent electrostatic and electromagnetic interference, the stability of the product is advantageous; the fuselage color is black design, the appearance is solemn and generous (Figure 6) The front of the chassis is the product model identification area
because 485 communication using differential mode communication principle, twisted pair of anti-interference is the best. It is extremely wrong not to use twisted-pair wires.485 bus must be hand-held hand-type bus structure, resolutely eliminate star-type connection and fork connection.Equipment power supply of AC and chassis must be real grounding, and good grounding.There are many places on the surface of the triangle plug, in fact, there is no grounding, be careful. When the grounding is goo
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