Battery Review and Tips

Why not start the motherboard, while the memory issue, “Didi” sound Alert

Failure Analysis:

Possible reasons for this phenomenon is the motherboard memory slot, poor performance, the memory slot on the finger and the reed is bad; also possible that the finger on the memory, the appearance of the gold not good for a long time work, the gold surface showed a thick oxide layer, resulting in exposure to bad memory; there is a production process may be non-standard memory, fancy a bit thin, so that memory is always some gaps and slots, a little vibration, exposure may lead to poor memory, triggering the alarm phenomenon.

Failure response:

To address this SONY NP-FW50 battery phenomenon, as long as the computer case open, and remove the memory module under power, will appear in the memory or the oxide layer on the dust, wipe it with a rubber, then pull out the memory slot on the If the memory can be a thin, you can use the hot melt adhesive, the slots on both sides of the small gap filled to ensure that memory does not side to side, so that it can effectively avoid the finger being oxidized. If the above methods can not solve the trouble, you can try the replacement of the memory; replacement of memory condition, the alarm continues to appear, at this time can only replace the motherboard to try the re-

Why can not correctly identify the keyboard and mouse?

Failure Analysis:

Possible reasons for this phenomenon is the motherboard does not support the mouse, keyboard, so the system can not find the mouse, keyboard, even if you can find the mouse, the mouse does not listen to your control; or keyboard, mouse, connected to the computer, there interface loosening This will be very likely to cause, CANON BP-511A Battery , keyboard, mouse, the phenomenon of poor contact with the motherboard; there is a reason why the mouse, keyboard itself is faulty, causing the system can not be effectively recognized.

Failure response:

First check the manual to see what kind of motherboard in the end to support keyboard, mouse, and if the current use is not compatible with the motherboard, you can re-replace the motherboard is compatible with the keyboard, mouse, you can solve the problem; if the mouse and keyboard ports is loose, you can re-replacement of the keyboard, mouse interface, to ensure that connection is stable and reliable; if the above methods can not solve the problem, must check the keyboard, mouse, their own problems, such as checking its supply voltage is 5V if it does not operate properly to check the power supply should be safe there is no fuse resistance phenomenon, and if a large resistance value peace, you can use smaller wires directly connected.

Why the printer does not work?

Failure Analysis:

Rule out the printer’s own failures and software faults, the printer is not working properly, most likely due to hot plug the print cable, causing damage to the print interface.

Failure response:

To address this failure, the necessary CANON NB-9L battery replacement of the print interface chip, this chip can often be printed in the same model of the old board, you can easily find your professionals to help the print chips welded together; if the printer can support USB interfaces , then you can connect the printer to the USB interface, so what do not need to replace the print interface of the course, you can also buy a multi-function card, to re-”create” a new LPT port; However, due to “create” a new LPT port, need to go through jumper settings and software settings, there is not much expertise is best not to act rashly.

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1. Whether the virus is damaged or destroyed the core BIOS

If any of the motherboard after power is no response, neither the police, the display is not lit, then the BIOS should first consider whether the board by CIH and other viruses. When the card in a DEBUG, through the card BIOS to determine whether bright light. When the BIOS, BOOT block has not been destroyed, the display does not light after startup, PC speakers have “beep” sound the alarm; If BOOT is damaged, then power, the power and hard disk light is on, CPU fan speed, but do not start . At this time only by the programmer to rewrite the NIKON EN-EL14 battery BIOS.

2. With the detection of the motherboard into the protection of the state, when required to lift the protection of the CMOS discharge

Some motherboard with automatic detection protection, when the supply voltage is abnormal or adjusting the voltage is too high CPU overclocking situation, it will automatically lock to stop working. Performance is the motherboard does not start when the CMOS discharge can be combined with electric start. Some motherboards need to open the board the power to hold down the RESET key to unlock.
Another phenomenon is the failure to use the CR2032 CMOS battery problem with the battery, press the power switch, hard drive and power lights, CPU fan speed, but the host does not start. When the battery removed, to be able to start normally.

3. Does not recognize the keyboard, mouse

There are three cases:
⑴ the general board of the keyboard, mouse, 9-pin serial port, 25-pin parallel port, GAME mouth are all peripheral equipment control chip IT8702F-A (ITE) or W83977EF-AW (Winbond) and other chip control. Some of the control board is a direct Northbridge. When not recognize the device, should first check to the keyboard, mouse, power supply of +5 V power supply is normal. If not normal, then check whether the fuse resistance power of insurance. If the insurance was high resistance state resistance, thin wires can be directly connected (some motherboards in order to save costs, the insurance after eliminating the direct use of resistance wire connection). If the normal supply of electricity, the exclusion of peripheral normal, usually because the users of the two chips after damage caused by hot plug and do not recognize the keyboard and mouse. The failure of the deal need to replace the control chip, cost about 50 yuan.
⑵ There is also a Sony NP-BN1 battery keyboard and mouse interface is loose, nodding left and right to be able to recognize the keyboard. This is because the keyboard port plug loose often, the result of poor contact, the solution to replace the keyboard and mouse ports.
⑶ keyboard or mouse is not compatible with the motherboard. Failure showed no keyboard and mouse, or boot the boot prompt press “F1″ to continue, or run around on the desktop mouse. The solution is to replace the keyboard or mouse.

4. The printer can not print

After excluding the software and the CMOS settings are not correct because the case may be in pure DOS mode, use the DIR> PRN (only part of the laser and dot matrix printer, inkjet printer and effective, it said that the printer must support DOS printing) see print correctly. Generally can not print when the plug is caused because the user charged (because the printer also uses switching power supply, while the printer chassis and the host of the casing is not common ground, the two this will be tens of volts, or even hundreds of volts of pressure poor, plug in the live process, will discharge through the internal components, the burning of the printer or print the host interface chip.) Then you can replace the interface chip on the motherboard.

There are three solutions:
⑴ through the multi-function card to add a new LPT printer port. Multi-function card for more than 386,486 times by the host, can now be found in the secondary computer market, 10 dollars a piece, but add a new LPT port to print fees, harder, you need the hardware jumpers and software installation settings, but as long as cautious have the patience to be able to get more time.
⑵ change the interface chip, a similar chip in the old general can be found on the motherboard, but CANON bp-511a battery welding is live technical, needs professional help, to spend around 50 yuan.
⑶ USB interface, using the print, this method is the most simple, but need your printer supports USB interface print.

5. USB interface, can not be used

USB interface, with hot-swappable and can provide power for the peripheral, ease of use.
There are three USB interface failure:
⑴ able to find a mobile device, the driver can be installed properly, but in my computer’s device manager the device has a yellow exclamation mark.
⑵ not be able to use high-capacity mobile hard disk, U disk can only use, MP3 and so on.
⑶ HDD USB interface, can be used in the rear, and in front of the USB interface, can not be used.

6. Damage to the power switch or RESET button

Now the market look better and attractive chassis, but also more humane, to help us come to their own machines, but is a switch on the chassis and light, headphone jack, USB jack of the poor quality of friends. If turned on, a few seconds automatically shut down, then best to open the chassis panel, check the power switch is not pressed after playing it up.

If the RESET key is pressed when the EN-EL14 battery bomb is not up, then after power because the host is always reset, so press the power switch, the host will be no response, and processing power are not the same, the power light and hard disk light does not shine , CPU fan is not turning.

Because the hard disk light and power light emitting diodes used, the working voltage is: red, green, yellow for 1.8-2.3V, the blue is 4V. Some of the motherboard because the power supply does not increase the diode current limiting resistor, the light does not take months and it broke.

If you have a headphone jack, front and rear chassis, rear headphone jack when there is not available, then most likely loose the front headphone jack reed, poor contact, resulting in open circuit due. Then detachable front panel headphone jack to the front left and right channel input and output pins welded together no problem.

If the front two USB interfaces one can, one can not use your edges on the motherboard is not an error, eight USB socket inside the reed is the poor quality, and can not be good contact with the mobile device. Additional point, some of the chassis front USB interface adds protection circuit, but sometimes because of damage caused by protection circuit components can not use the front USB interfaces, you can remove the additional protection of components can be directly used to solve the VW-VBG130 battery problem.