jumper ezbook

Computer Board common problems and coping strategies Common failure One: no display Computer boot No show, first we have to check is the BIOS. Important hardware data is stored in the BIOS of the motherboard. At the same time the BIOS is also a more vulnerable part of the motherboard, very vulnerable to damage, once the damage will cause the system can not run, such a failure is generally due to the motherboard BIOS is CIH virus damage caused (of course, also do not rule out the motherboard

software setup. Hardware settings are more commonly used, it is divided into jumper settings and BIOS settings two kinds. 1. Jumper set overclocking. Most early motherboards used a jumper or dip switch to set the method for overclocking. In the vicinity of these jumpers and dip switches, a number of forms are often printed on the motherboard, documenting the fu

troubleshooting when the motherboard does not boot: The first thing we need to check is the BIOS. Important hardware data is stored in the BIOS of the motherboard. At the same time the BIOS is also a more vulnerable part of the motherboard, very vulnerable to damage, once the damage will cause the system can not run, such a failure is generally due to the motherboard BIOS is CIH virus damage caused (of course, also do not rule out the motherboard itself failure caused the system can not run. )。

expansion card problems, resulting in plugging such as sound card and other expansion cards after the motherboard does not respond without display. 2, jumper board in the CMOS set CPU frequency is not correct, it may also cause the failure to display, as long as the elimination of CMOS can be resolved. Clear the CMOS jumper is typically near the lithium battery on the motherboard, its default position is

looking at the motherboard instructions. 　　2. Change the motherboard jumper For some early-listed old model motherboards, because the motherboard BIOS function is relatively single, these motherboards can only use the jumper mode to turn on or off the keyboard mouse boot function. To turn off the keyboard and mouse boot function, we must change the connection status of the corresponding

First, no display on the boot Computer boot without display, the first thing we consider is the BIOS. Motherboard BIOS in the storage of important hardware data, but also the more delicate part of the motherboard, very vulnerable to damage, once the damage will cause the system can not run, such a failure is generally due to the motherboard BIOS is CIH virus damage caused (of course, also does not exclude the motherboard itself failure caused the system can not run ）。 The general BIOS is damaged

run normally. Of course, some motherboards can provide a lock on the frequency of various interfaces. Set the CPU standard FSB The current CPU standard FSB only 66MHz, 100MHz, 133MHz (already 200MHz), although the current new motherboards support "soft jumper", that is, through the "BIOS" to set the CPU FSB, but this soft jumper generally can only set a section of non-standard FSB ( Used for overclocking

Due to motherboard reasons, this type of failure is typically due to damage to the motherboard or damage to the BIOS caused by the CIH virus. After the general BIOS is damaged by the virus, the data in the hard drive will be lost, so we can determine whether the BIOS is damaged by detecting the hard drive data intact. 　　First, no display on the boot Due to motherboard reasons, this type of failure is typically due to damage to the motherboard or damage to the BIOS caused by the CIH virus. The

to overlook easily. It is generally believed that the computer black screen is a monitor and video card problem, with no other devices. In fact, because the sound card and other equipment installation is not correct, resulting in the system at the beginning of the difficult to complete, especially the hard drive of the data line and hard drive power cord plugged into error, easy to cause no display of the fault. 6. Check to see if the memory strips are in good contact with the motherboard? Res

motherboard jumper For some early-listed old model motherboards, because the motherboard BIOS function is relatively single, these motherboards can only use the jumper mode to turn on or off the keyboard mouse boot function. To turn off the keyboard and mouse boot function, we must change the connection status of the corresponding jumper. To this end we must ca

problems, resulting in plug-in such as a sound card and other expansion card after the motherboard does not respond and does not display. 2, the jumper motherboard in the CMOS set the CPU frequency is not correct, may also cause the failure to display, in this, as long as the CMOS can be resolved. To clear the CMOS jumper is generally near the motherboard lithium battery, its default location is generally

change the value of the CMOS settings caused it? Let's try this first, disconnect the power and open the chassis, and then find out the location of the CMOS jumper, as a result of a short jumper, on the motherboard to find a, but must remember the position, with jumper will clear the CMOS jumper after a few seconds,

, backup storage capability and fault tolerance, it is necessary to ensure that the system can run stably for a long time, so that the influence of the fault is localized, and the network design should be advantageous to the analysis and elimination of the fault. Second, the factory park fiber wiring System We know that from the factory to the information center of the wiring is generally more than the maximum distance of twisted-pair wiring 100 meters, so the use of optical cables for wiring.

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complete the end-to-end process in a minute. XG Fiber optic connectors can be applied to optical cables with a buffer layer diameter of 250μm and 900μm and a 2.5mm or 3mm sheath. And the characteristic index test of the connector fully meets and exceeds the tia/eia-604-3 requirements. It also uses a gray appearance to distinguish it from a traditional connector. The MT-RJ XG Connector is only half the size of the SC two-port connector, smaller than a standard RJ-45 connector, but can provide a

1. Do you see the light on the optical transceiver or optical module and the twisted pair port led? A, such as the transceiver of the optical port (FX) LED is not lit, please determine if the fiber link is cross link? The fiber jumper is connected in a parallel way and the other end is connected in a cross way. b, such as a transceiver of the light port (FX) indicator light, the B transceiver's optical port (FX) indicator is not lit, the fault is

This article mainly introduces the importance of the integrated wiring system management, the development of wiring management technology, the standard of wiring management, the management of racks and cables, and the intelligent application of wiring management. 1. Scope of cabling Management Cabling management is the wiring device for the working area between devices, cables, information outlets and other facilities, according to a certain pattern of identification and records, including: Ma

motherboard expansion slot or expansion card, resulting in plug-in such as a sound card and other expansion cards after the motherboard does not respond and does not display. 2. The jumper-free motherboard in the CMOS set the CPU frequency is not correct, may also raise does not display the fault, in this, as long as clears the CMOS can solve. To clear the CMOS jumper is generally near the motherboard lit

directions. Use the worst attenuation parameter value to determine whether your link can pass the standard. The installation standards recognize the directionality of tests on optical fibers and provide testing methods. You can splice multiple optical fibers into one Backbone link by using connectors or other methods. TIA/EIA-568-B.1 requires you to test the Backbone link at least once in one direction. In fact, it implies that two-way testing should be a good method ). Based on the same standa

What is the background of the emergence of the smart cabling system? What is the current development stage? How much space is there? It is necessary to introduce these issues in the smart cabling system that has just attracted users' attention. "The main reason why smart cabling systems began to emerge in the 1980s S was that network administrators were struggling to manually record cabling link information, they also want to monitor the cabling system in real time. In addition, due to the user'