Said to wireless routing, everyone thinks of dell inspiron e1501 series laptop cpu cooling fan above all is signal intensity, this determines the performance of wireless networks, wireless router when put in the wireless local area network (LAN) in the different position, wireless Internet signal strength will also different, so the efficiency of wireless Internet nature is different also, how to play a wireless router's maximum performance? So you finish reading this, I believe you will understand.

A wireless router, usually to the user access number is have certain restriction, if allow too many wireless Internet users access to wireless equipment of words, so the performance of the wireless devices will have been seriously affected, the access to the same wireless Internet equipment all client system, can efficient access to wireless local area network, so put in before, we should start to estimate for the wireless Internet, the number of users, to ensure that many wireless Internet users can evenly access to different wireless access equipment.

Second, if we choose wireless router antenna can be replace words, so we can replace antenna or use add feeder way, to focus placed wireless Internet equipment, at the same time by adjusting the length of the feeder to realize indirect adjustment wireless Internet antenna position purpose, this will increase the put wireless dell inspiron n3010 series laptop cpu cooling fan Internet equipment flexibility. However, need to remind you to note that, considering the wireless router's feeder length if too long, it will also affect the performance of the wireless Internet, so in the future we in the use of the antenna feeder, still need to properly control the wireless equipment feeder length.

Three, wireless router usually by two kinds of power supply mode, to equipment input power, a kind of way is through the Ethernet power supply mode input power, another way is through the external power input power. If the location of the wireless router to change often word, that we should try to choose Ethernet power supply mode wireless router, for this type of equipment in the choice put the position, not influenced by the input power control, it moves up very flexible, very convenient; Of course, if the wireless local area network to provide power interface more time, also can choose through the external power source supply methods of wireless Internet equipment, the wireless Internet equipment stability may be a little better.

Four, wireless Internet signal in the dell latitude 120l series laptop cpu cooling fan transmission process, very vulnerable to surrounding obstacles blocking, and at the same time, wireless Internet signal is blocked, the more so the Internet signal attenuation amplitude is the. When the wireless Internet environment contains obstacles have a lot of is the metal objects, so the client system wireless Internet efficiency can be severely affected, because the metal barrier can not only to wireless Internet signal transmission path for blocking, at the same time it also directly will wireless Internet signal in the transmission process of electromagnetic energy to sponges, and at the same time, automatic generation of weak current flow to the external direct drain off, so wireless Internet signal once by metal obstacles blocking later, Internet signal may directly be attenuation to zero.

Five, often, wireless router signal coverage is about 100 meters, if we put in the equipment, wireless Internet environment nearby obstacles of words, so wireless signal coverage would be smaller, considering the wireless routers use the antenna is always a omnidirectional, in 360 degrees range can launch, broadcast radio signals, so we should try to wireless equipment will be placed in the center of the local area network (LAN) in position, and at the same time ensure that this position can't have too many dell latitude d800 series laptop cpu cooling fan obstacles, many wireless Internet environment the client system may be scattered in a number of different room, at this time we placed in wireless router, might as well try to will it directly placed in different room intersection position place, I believe that is located in different room all client system can get ideal wireless signal.

Six, wireless Internet signal in the transmission process, are also vulnerable to other radio emission out signal interference, especially from use and wireless Internet node or wireless router the same frequency band equipment interference, so put in wireless router before, it is necessary for us to may need for wireless Internet access each place, of the signal interference environment evaluation, confirm whether there are near signal interference source. If existing wireless signal interference source, then we put in wireless Internet equipment, must try to avoid the signal interference or advance remove signal interference source.

Ensure wireless Internet signal can be in a relatively stable the Internet environment in the transmission, and adjust the working frequency,dell inspiron 4100 laptop cpu cooling fan in order to eliminate other source to its interference, such ability make wireless networks more stable.




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The choose and buy when mainboard to layout should pay attention to the following:

1, look for the male plate design
Front said, some motherboard manufacturer for toshiba satellite l600d-09b laptop cpu fan saving cost, lower the price, not only will the mainboard volume change little, also do not use male plate design, even in the motherboard materials on the corresponding adjustment, only satisfies chipset proposed basic performance requirements. The lower the cost of practice is to the manufacturer's main board layout design ability of a test: in a small space placed the same expansion slots, and maintain stability and limit electromagnetic interference, so that the rationality of the design of main board structure arrangement is especially important, a bit of a design is not reasonable will lead to crash.

From this point of view, the strength of the manufacturers can easily be in these places appear loophole, motherboard instability, poor performance are caused by. So, for consumers, if there is no special requirements, or choose the male plate design of the motherboard is better.

How to identify motherboard toshiba satellite l600d-63b laptop cpu fan is male plate design, that is about to see users to chipset mastering of the. For example a most chipset provide 6 PCI interface, but the user to the purchase of motherboard while using this chipset, but only provides four PCI interface, this is the non-state-owned plate design. In fact, in the motherboard manufacturer in the world rarely completely according to male plate design.

2, observe the CPU socket position
CPU socket position is very important. If on the mainboard is too close to the edge, then in some the space is narrow or power position not reasonable inside the case will be installed CPU radiator difficult situation (especially in the user want to change radiator and don't want to make the whole motherboards and out). By the same token, the CPU toshiba satellite l630-01s laptop cpu fan socket around the electrolytic capacitor should not get too close, otherwise one is not convenient installation radiator (and even some CPU large radiator simply can't install); for another, may damage the electrolytic capacitor.

3, observe the ATX power supply position
Almost every motherboard ATX power supply interface position is different. Reasonable position should be on the mainboard edge on one side of the right or the CPU socket and memory slot between, and should not appear in the CPU toshiba satellite l630-02s laptop cpu fan socket and left between I/O interface. This can avoid some power supply connection too short awkward, also won't appear in CPU radiator installation or influence CPU surrounding air circulation problems.

4, observe the memory slot position
Attention should be paid to the installation longer AGP display card, and graphics card adjacent memory slot buckles will can't open. If it is in memory and must take graphics down, that you will be in trouble. In addition, the memory slot also should not be too close to the right edge main board, or else it may lead to installation cd-rom drive and memory bank when collision.

5, observe the floppy drive and IDE equipment interface position
Floppy drive and IDE interface position, if in the main board by the right, need to consider whether the cd-rom will be the; If the main board on the toshiba satellite l640-00u laptop cpu fan right, it should not only consider the will to installation longer PCI interface card, also want to consider if the case is bigger, may appear IDE data line not enough long situation.

Thus it can be seen, main board structure layout problems not only may affect the stability, sometimes some details will also lead to consumers use not convenient. Strong motherboard manufacturer tend to fully consider the user convenience, for example some large capacitance shoulds not be placed in PCI slot, AGP slot near, because they have may hinder part of the expansion card insertion. And as now CPU radiator volume is more and more big, this will request the CPU socket nearby large capacity electrolytic capacitor can't from socket too close, should give huge CPU toshiba satellite l640-02v laptop cpu fan radiator reserve enough space. But at the same time, in order to improve power quality, in order to the stability of the CPU, and must be placed in the CUP plug near a large number of electrolytic capacitor. For some big manufacturer is concerned, they can be both treatment is very good, if it is a small factory of words, may not know what to do.







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The main computer chassis interconnector knowledge

Believe that everyone can easily put hardware acer aspire 5741 laptop keyboard assembly into a host, but there are many connections inside the case, they are some of the chassis signal lines, such as the hard drive power light, motherboard alarm horn, switching power supply and restart switch and front USB interface connection, etc., these connections joint laws can will floor some friends, don't be afraid, below this computer host jump line connection in the lecture.

1) chassis signal wire connection
Chassis signal wire inserted into the motherboard pin corresponding position can.

Installation disk light signal wire
In the attachment plug to find marked "H.D.D LED" type of joint, will the dowel on the mainboard mark "H.D.D" on the pin. When this line joint, computer acer aspire 5741g laptop keyboard hard disk in reading and writing, on the case of the hard disk indicating the lantern fair ablaze.

Installation restart signal wire
In the attachment plug to find marked "RESET SW" type of joint, will it received the mainboard "RST" on the pin. On the mainboard "Reset" needle connected to the chassis front "Reset" button, press the "Reset" button generates short circuit, loosen and restore open, instantaneous short circuit can make computer restarts.
Connection H.D.D LED and connection "RESET SW"

Install power switch signal wire
Press the power switch on the chassis, chassis power began to give on the mainboard equipment power supply, computer acer aspire 5741z laptop keyboard start. In the case of POWER joint some marked "MB SW," the words, some marked with "POWER SW," the words, the message is the same. In the motherboard signal pin to find corresponding pin, the dowel in on the main board of the pin.

Install power light signal wire
Will the attachment plug "POWER LED" type of joint and find out the dowel on the mainboard mark "POWER LED" on the pin. When it connects, start the computer, the power indicator light will be lighted, said power supply has been opened for us.
Connection "MB SW" and connection "POWER LED"

Installation SPEAKER
Will the acer aspire 5741zg laptop keyboard attachment plug "SPEAKER" type of joint and find out the dowel on the mainboard mark "SPEAKER" pin, the joint used to connect a motherboard alarm sound PC SPEAKER, some PC SPEAKER is independent. Independent PC SPEAKER and connection "SPEAKER"

2) installation USB front line
Now the mainboard has lead to the USB interface, but front USB interface need in the chassis interconnector to use.
After above steps, the completion of the chassis internal equipment installation and connection.
In this way, easily pick good host computer acer aspire 5742 laptop keyboard chassis internal connection.





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The notebook computer hard disk noise of the causes and repair methods

I recently discovered in playing games or watching hd movies after exit, hard disk dell inspiron b130 series laptop cpu cooling fan will have "snickering" voices, why hard disk will be abnormal sound, notebook hard disk abnormal noise will not affect the life of the hard disk?. Follow the below to view the cause of abnormal sound hard disk and the method of resolution.

The reason is in the system of free time, hard disk head will be home, for some hard disk speaking, head home will bring about such cryptids, on the surface will not affect the normal use, but should pay attention to, once head home to 100000 times, read disk will appear delay, pause and reaction, and head home 600000 times, hard disk basically one foot in the grave. Therefore,dell inspiron e1501 series laptop cpu cooling fan whether out of to reduce noise pollution consideration, or out of hard disk maintenance consideration, should reduce the number of hard disk head position, in the system spare time don't let hard disk head home, we can through the setting DiskInfo software to realize.
Hard disk abnormal sound solution

1, operation DiskInfo software, the software will automatically detect hard disk all kinds of information, and in the task bar icon display hard disk usage rate.

2, double-click the taskbar software dell inspiron e1505 series laptop cpu cooling fan icon, and then will pop up software main interface, in the "function" under the menu select "advanced features".

3, and then select "AAM/APM control", and click "AAM" project "enable" button, will slide block move to "quiet mode" position, which can reduce the hard disk power consumption and the work noise.

4, click "APM" project "enable" button, will slide block move to "performance mode" position, so only in shutdown in hard disk head will be home.

Because work head not home, so hard disk earthquake resistance will be reduced, so hard disk of abnormal sound can solve, use this way, laptop computers dell inspiron m140 laptop cpu cooling fan don't violent vibration, the proposal on solid using a notebook on the table when using this way.







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Graphics common troubleshooting

Common fault one: show no boot
Such fault general because graphics and motherboard bad contact or motherboard toshiba satellite a10 sp129 laptop cpu cooling fan slot have caused problems. For some integrated graphics motherboard, if memory Shared main memory, it is required to pay attention to the position of the memory bank, generally in the first memory bank slot should be inserted in a memory bank. Due to the graphics cause boot show no fault, after startup generally will be issued a long two short bumming (for AWARD BIOS for video card).

Common fault 2: display flowers screen, see not clear handwriting
This kind of failure is usually due to a display or video card does not support high resolution and cause of. Flowers screen can switch startup mode to the safe mode, and then in the Windows 98 to enter the display Settings, 16 color state click on the "application", "ok" button. Restart, Windows 98 system normal mode delete graphics driver program, and then restart the computer toshiba satellite a15 s127 laptop cpu cooling fan. Also don't enter the safe mode, in pure DOS (henan emba) environment, editing SYSTEM. The INI file, will display. DRV = pnpdrver to display. DRV = VGA. DRV, save exit, and then in the Windows update driver.

Common fault 3: color display is not normal, this kind of failure usually have the following reasons:
1. The graphics card and display signal wire bad contact
2. Display their own fault
3. In some software running in the color is not normal, general common in old machine, in the BIOS has a school
Check the color options, its open can
4. Graphics damage;
5. Display was magnetization, this kind of phenomenon is toshiba satellite a15 s129 laptop cpu cooling fan generally with magnetic objects can too close to be caused by, magnetic change after may cause show scenes appear deflection phenomenon.

Common fault 4: system halted
Such fault appears more commonly found in main board and the graphics card not compatible or motherboard and graphics bad contact; graphics
And other expansion card not compatible can also cause system halted.

Common fault five: screen abnormal noise point or design
This kind of failure is usually due to the graphics memory problems or graphics and motherboard bad contact cause. Need to clear clean graphics goldfinger site or replace graphics.

Common fault 6: graphics driver program lost
Video card driver loaded, running after a period of time the toshiba satellite a15 s1292 laptop cpu cooling fan drivers are automatically lost, this kind of fault is generally in graphics by poor quality or graphics and motherboard not compatible, make graphics temperature is too high, resulting in system operation instability or appear crash, the only change video card.

In addition, there is a kind of special circumstances, before can be loaded with graphics driver program, but in graphics driver program load into, into the Windows there was a crash. Replaceable other types of graphics in load the driver, insert the old graphics resolved. If it can't solve the fault, then explaining the registry fault, to the registry in henan from toshiba satellite a15 s157 laptop cpu cooling fan an line recovery or reinstall the operating system can.




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The mouse only quantitative index is the samsung np n145 jpm3 laptop keyboard interpretation of the degrees, explain degree also called resolution, and image correlation is an important concept, it is a measure of the technical parameters of image detail expressive force. But the explanation degree type has a lot of, its meaning is different. Explain degree with each inch can be produced on the points that DPI (DotsPerInch) to measure. To explain degrees from three aspects to determine: optical parts, hardware and software part. But the mouse explanation degree and no special software to measure, light see manufacturers released by the numerical are not reliable. So this time we design a new scheme to test the performance of the mouse. A brief introduction of steps:

1, on a piece of white paper on 2 cm draw a straight line, don't think 2 cm distance is very short, this 2 cm with the mouse reaction on the screen distance is almost 20 cm! (for ease of measurement, the display USES a 800 x600x16bit resolution.

2, open Photoshop, create a new blank documents, size for 500 x1200 pixel.

3, choose 9 pixel brush to draw down the samsung np n150 ja05 laptop keyboard mouse movement trace (with a square box pressure online on boundary, in case the mouse go wide), then carefully and uniform to school official cites use the mouse to carry off over the line.

4, finally use Photoshop scale measure off the mouse pointer on the screen moving distance.

5, this distance reflect the mouse explanation degrees, the mouse to explain the degree, the corresponding pointer on screen moving distance is bigger also.

What say here can be observed the change of the screen, can be cursor movement one (or N) pixels, also can be in FPS game turned to 10 degrees. This change can be made by the mouse drive or software (game) Settings to change, but one of the most basic, the most subtle change can only be cursor movement 1 pixel. We discussed here is 1 pixel change. But the mouse must move minimum distance, is the reciprocal DPI. If the mouse is 200 dpi,samsung np n150 ja07 laptop keyboard then the mouse A must move 1/200 inch, screen cursor movement 1 pixel. And the other one each 800 dpi mouse B, simply moving 1/800 inch, the cursor can move 1 pixel.

This is the first layer in the sense of precision difference, is the mouse to tiny moving response ability. When the mouse B moved 1/200 inch, screen cursor can move four pixels. The samsung np n150 jp06 laptop keyboard show as A result of which the mouse B cursor movement speed is faster than the mouse A 4 times (by this time the mouse itself movement speed is the same). So in the same mouse movement distance, DPI value low mouse A can obtain higher cursor movement speed? (note, is the cursor speed)?

Of course no problem, drive to an accelerated went. A not mobile 1 pixel, but four pixels, then it can and mouse B the cursor movement speed. But the new problem and produced, mouse 1 itself fast moving may also can't see, when the mouse moves slowly, you will find the mouse on the screen cursor always only in a multiple of 4 number of pixel stay, the mouse cursor beating the mobile. This is the samsung np n150 jp0b laptop keyboard second in the sense of precision difference, is the mouse to the screen pixels control ability. So high DPI mouse, can be made by small operation get high response, and at the same time maintain a high level of pixels control ability.

Teach you four recruit easily get Windows system optimization

System with long, each part will have redundancy, ibm lenovo thinkpad x200s series laptop cpu cooling fan bloated local influence system speed. In order to make the system run more fluent, we will often through the manual Settings or tool the system optimization. For beginners, manual setting place too much, the process is relatively complex, and system optimization is a often of work to do, so suggest or use special optimization software to optimize is more convenient. Many friends are familiar with "super rabbit" this kind of optimization tools, its function is strong, but it's still not enough ShaGuaHua, this period we introduce a small tool XPy, just simple steps, can let the system to optimize.

A, what you need to do optimization

System after download and install where need optimization? First the rookie to Chou Chou, so in XPy in setting optimization options will have targeted the.

1. The page file system optimization

2. System start menu popup speed too slow, icon cache is ibm lenovo thinkpad x300 series laptop cpu cooling fan too small, need to adjust.

3. The default launched some independent service, has nothing to do with port may be safe hidden trouble.

4. Some application after installation will self-assertion in the start menu since the launch of the program to add the corresponding items (such as installation Office after some input method entries appear in the automatic item).

5. System can not be automatically according ibm lenovo thinkpad x301 series laptop cpu cooling fan to your network link mode set different maximum transmission unit equivalent; IE and connection number is too small.

6. The system default installation Microsoft offer of some software, don't need can be removed completely.

7. Software uninstall not completely, the system still have residual files or registry key.

Second, the quick setup XPy

First start XPy, in the "Settings" (set) ibm lenovo thinkpad x61 7673 laptop cpu cooling fan window choose the type of optimization, simply from the drop-down list can choose scheme. XPy besides contains "No Settings" (don't change system original Settings) outside, optimization Settings combination also contains the following modes, and every kind of mode have good match for you the related items:

"XP Antispy Settings" : anti-spyware program setting. Which can improve the ability to prevent malicious software (for Windows XP effective).

"All possible setting (Auto Detection)" : automatically detects All possible needs to adjust the project, the proposal USES.

"All Settings" : All optimization, automatically in XPy will provide optimization option All selected and applied into the system.

"Custom" : completely by the user choose our need to set up entries, but there are some difficulty for beginners.

O sprout tip: generally don't choose ibm lenovo thinkpad x61 7674 laptop cpu cooling fan"No Settings" and "All Settings," the former not optimization, while the latter may optimize excessive lead to new problems. Try to choose customizable set.

According to the different choice models still need to affirm, then click "Apply" button, in the next "Installing" dialog box, the software will be the home on the system provide necessary modifications, click the "Show Details" button to view Details. Then ask if restart to complete the final modification, restart your system will be selected according to the model optimization.

Three, system Settings, give me the right to know

XPy can also let users have to set up the system of right to know - when the mode choice, in the list, you can detailed view each mode changed exactly what project.

For example, choose "XP Antispy Settings" item,ibm lenovo thinkpad x61 7675 laptop cpu cooling fan you will find it only chooses the "General" (conventional), "Services" (Services), "Internet Explorer" (IE browser), "Windows Media Player" (Media Player), "Windows Messenger" this several, it only for these entries of small projects to carry on the revision, and spread the corresponding items, you can better understand XPy exactly what to change.

For example, in "XP Antispy Settings" (anti-spyware software pattern) expansion "Internet Explorer", we find it only in the following Settings: "Disable Automatic Updates" (prohibit Automatic Updates), Rename UPLDDRVINFO HTM. "(will UPLDDRVINFO. HTM file renaming), UPLDDRVINFO. HTM file is" Windows XP HCP URI can be directly deleting files loopholes "may be used in a document, because the browser submitted HCP URI request existing safety problems, therefore has the hackers will use the file of the ActiveX control to delete local files, this belongs to the dangerous file,ibm lenovo thinkpad x61 7676 laptop cpu cooling fan affected system including Windows XP home edition and professional edition, many security experts have suggested directly deleted, and XPy approach is to name it. If you want to under this model are fixed more depth system Settings, completely available checked.

O sprout tip: through this detailed Settings, you can completely will system optimization Settings control on palm, understand exactly what the project is modified. The comparable one by one into the system registry or service manager and other Settings much more convenient to use.

Four, give you an undo key, sorry, don't worry optimization excessive

If you graph save trouble and dark chose "All Settings", ibm lenovo thinkpad x61 7677 laptop cpu cooling fan in the discovery after restart the system operation anomaly also need not nervous, and many system set up different is, XPy provides "regret medicine", you can easily modify the previous reduction set to (a lot of software just optimization, does not give you the optimization of the right to know, let alone make you Restore previous set up), particular way is rerun XPy, in tip picture click the "Restore" button, and then click "Apply" button can return to its original state.

This mechanism, you don't have to worry about system is "optimization excessive", once the system has any exception, you can quickly restore previous state.ibm lenovo thinkpad x61 7678 laptop cpu cooling fan When you play in new system after the patch, use the system to do some XPy set-up, no doubt will be quite convenient, and the optimization effect is also very obvious.



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