HOW TO CHOOSE LAPTOP BATTERY- realize from Parameter to Cell.

HOW TO CHOOSE LAPTOP BATTERY- realize from Parameter to Cell.
What is the biggest difference between laptop pc and desktop pc,I think it is “mobile ”.
This“ mobile ”computer depend on wireless network and laptop battery.
Therefore it is very important that how to choose laptop battery.
As a consumer, the simplest and directviewing method of choose laptop battery is see the quantity of cell.Mainstream laptops standard on 8 cell , 6 cell or 4cell lithium ion battery.the 4 cell battery usual be used in slimmest laptop.
The more the quantity of the cell, the more long it is Battery life.

laptop battery 6 cell
when choose laptop battery, some person pay more attention to the “mAh”. mAh is a unit of cell capacity. We can see the sign on Laptop battery says “6 cell 4400mAh” or “4 cell 2200mAh”, making it easy to believe that the Battery life depending on the cell capacity, but this is not the case.Now we need realize another parameter : watt hour.(Wh)relation between Wh with mAh.Wh÷V×1000=mAh

10.8V 5200MAH 56WH 6CELL battery
The important parameters of bettery are Voltage, watt-hour, mAh.
for example: the battery life is diffenrent when an 4800mAh lithium-ion batteries work at different voltage(10.8V, 11.1V)This difference stem from the change of watt hour.4800÷1000×10.8=51.84（Wh）
4800÷1000×11.1=53.28（Wh）4800mAh lithium-ion battery work at 11.1V have more advantages than work at 10.8v.
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IBM error fault code-IBM User Need to Know

IBM error fault code
As an IBM User,we will meet the laptop break down some time.we don’t know what to do,because we don’t know which parts is break.now, i tell you the mean of IBM error code,so you can find where the question arises.if you alway concerned our blog,you will become a proficient in laptop parts
Symptom / Error ,FRU / Action in Sequence=10X101: Interrupt failure；102: Timer failure；103: Timer interrupt failure；104: Protected mode failure；105: Last 8042 command not accepted；107: NMI test failure；108: Timer bus test failure.109: Low meg-chip select test. 1. System board.110 : (Planar parity.) 1. Go to Memory Checkout 2. DIMM card.3. Detach the expansion unit if it is attached to the computer.4. laptop motherboard.111: (I/O parity.) 1. Go to Memory Checkout2. Expansion unit or port replicator.3. System board.11XX1101: Serial_A test failure. 1. Serial device2. Communication cable 3. System board12XX1201: Serial_B test failure. 1. System board (infrared)158 : (Hard disk password was not set even though the supervisor password is set.) （ 1. Set the password for hard disk drive.159 : (Hard disk password is not set the same as the supervisor password.) 1. Set the correct password for hard disk drive.161: (Dead battery. 1. Go to Checking the Backup Battery2. Backup battery.3. System board.163: (Time and date were not set. 1. Set time and date. 2. laptop motherboard.173: (Configuration data was lost.) 1. Select OK in the error screen; then set the time and date.2. Backup battery. 3. System board.174: (Configuration error: Perform Checking the Installed Devices List before changing any FRUs.) 1. Check device configuration.2. Hard disk drive assembly.3. System board.1751772. Diskette drive assembly. 3. Diskette. 4. System board.602: (Diskette read error.)； 1. Go to Diskette Drive Checkout2. Diskette.3. Diskette drive assembly.604: (Unacceptable ID was read from the diskette drive.)； 1. Go to Diskette Drive Checkout2. Diskette drive assembly.3. System board.2402 1. TV Out Card 24XX(2401: System board video error.) ； 1. System board. 808X8081: PCMCIA presence test failure.(PCMCIA revision number also checked.)8082: PCMCIA register test failure. 1. PC Card slot assembly.2. PCMCIA device.3. System board. 860X(Pointing device error when TrackPoint is disabled.)；8601: System bus error-8042 mouse interface.8602: External mouse error.；8603: System bus error or mouse error. ； 1. External mouse. ；2. External keyboard. ；3. System board.；861X(Pointing device error when TrackPoint is enabled.)；8611: System bus error-I/F between 8042 and IPDC.8612: TrackPoint error.8613: System board or TrackPoint error. 1. Reseat the keyboard cable on the subcard.；2. Keyboard ；3. External mouse ；4. Sub card ；5. System board ；I9990301I9990302I9990305I9990301: Hard disk error. ；I9990302: Invalid hard disk boot record.；I9990305: No bootable device. ； 1. Check that the operating system is installed in the hard disk drive. If not, install the operating system.；2. Reseat the boot device.3. Check the startup sequence for the correct boot device.；4. Check that the operating system has no failure and is installed correctly.；I9990303(Bank-2 flash ROM check sum error.) 1. System board.Other codes not listed above. 1. Go to Undetermined Problems178175: EEPROM CRC #1 error.177: Supervisor password check sum error.178: EEPROM is not functional. 1. System board.17XX1701: Hard disk controller failure.1780, 1790: Hard disk 0 error.1781, 1791: Hard disk 1 error. 1. Hard disk drive2. System board183 : (Incorrect password entered at the supervisor password prompt.) 1. Have the user examine the password.184: (Power-on password check sum error.) 1. Reset the power-onpassword in Easy-Setup.185: (The startup sequence is not valid. Suspect that power was off when the startupsequence was being updated.) 1. Reset the startup sequence in Easy-Setup.186 :1. System board. 190:(A depleted battery pack was installed when the power was on.) 1. Go to Checking the Battery Pack.191XX: (PM initialization error.) 1. laptop motherboard.192: (Fan error.) 1. Measure the voltage of the backup battery. If the voltage is not correct, replace the backup battery. 2. Fan 3. System board195: (The configuration read from the hibernation area does not match the actual configuration.) 1. Check if the configuration was changed. For example, check if the DIMM card is added.
196: (A read error occurred in the hibernation area of the hard disk drive.)1. Run the hard disk drive test.2. Hard disk drive. 199XX(Resume error.) 1. System board.1XX 1. System board. 2XX 201: Memory data error.202: Memory line error 00-15.203: Memory line error 16-23.205: Memory test failure on on-boardmemory.221: ROM to RAM remap error. 1. Go to Memory Checkout.2. DIMM card.3. System board. 225(Unsupported memory module.) 1. Check if the supported DIMM is installed.2. DIMM card.3. laptop motherboard.301, 303, 304, 305, 3XX
(301: Keyboard error.) 1. Go to Keyboard or Auxiliary Input Device
Checkout2. Keyboard.3. External numeric keypad.4. External laptop keyboard.5. Keyboard/mouse cable.6. System board.601, 6XX(601: Diskette drive or controller error.)1. Go to Diskette Drive Checkout.
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How to buy and Replace a cover for your laptop

How to buy and Replace a a Cover for your laptop-www.laptoppartwholesale.com
You need to replace your laptop cover if it is damaged or has visible scratches.A cover protects your laptop computer and determines the peripherals and accessories you can carry with it.With a variety of options available in the market, you can ensure that your new cover meets your current requirement and the growing need of the future.we suggest buy laptop case in ebay or www.laptoppartwholesale.com. if you cann’t find it,you will book it from this web.of course,you must know the model No or laptop parts No you want.Follow these steps to ensure proper replacement of the cover for your laptop .1.Prepare the laptop for disassembly2.Remove the keyboard .3.Turn the computer upside down with the rear panel towardyou.4.Remove the twoT8M2.5×11.0 screws 1 and the four screws that secure the switch cover tothe computer.5.Turn the laptop computer display-side up with front toward you.6.Open the laptop computer as far as possible.7.Disconnect the power button board cable from the laptop systemboard.8.Insert a thin flat-bladed tool under the hinge cover sections of the switch cover and lift up until the switch cover disengages from the laptop.9.Remove the switch cover.10.Close the computer and turn it upside down with the rearpanel toward you.11.Remove the following screws:1 Two screws from the computer bottom2 Two screws from the computer rearpanel One screw from the computer laptop battery bay12.Remove the two Torx8 T8M2.5×7.0 screws 1 that secure the display assembly to the computer.Lift the display assembly 2 straight up and remove it.13.Remove the display bezel.14.Remove the display hinges.15.Remove the four mylar screw covers and the four screws that secure the display panel to the display enclosure.Remove the two screws that secure the display inverter to the display enclosure.Remove the display panel and display inverter from the display enclosure.16.Remove the inverter.17.If it is necessary to replace the wireless antenna transceivers and cables, remove the two screws that secure the left and right transceivers to the display enclosure.Remove the wireless antenna cables 2 from the clips in the display enclosure.Detach the wireless antenna transceivers 3 from the display enclosure.Remove the wireless antenna transceivers and cables.18.Turn the computer right-side up with the front toward you.19.Disconnect the following cables from the system board:1 TouchPad cable 2 Fingerprint reader board cable3 Smart card assembly cable.20.Remove the microphone from the clip in the top cover and the cable from the routing clips in the top cover.21.Swing the rear edge of the top cover 1 up and forward until the left and right sides disengage from the baseenclosure.Remove the top cove.22.Remove the laptop motherboard for bottom cover.
Now,all cover be dismantle apart.
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How to Replace IBM Thinkpad Cooling Fan

Is your IBM ThinkPad notebook running too hot? Replace that dusty, failing old heatsink fan unit with new orignail IBM laptop parts!let your laptop run more faster.The correct replacement part, a few small hand tools and basic maintain skill is all that’s necessary.you can find original IBM fan in www.laptoppartwholesale.com
Part 1
How to Remove laptop Keyboard
1.power off the laptop, remove the laptop battery and remove all screws on the underside of the laptop identified . Remove These attach to the laptop keyboard.2.Open the cover of laptop. Use your finger to begin pressing the keyboard out through the small hole inside the battery compartment. Your finger presses on the underside of the laptop keyboard button section.3.Slip a screwdriver underneath the keyboard button section you pushed out in the previous step. Pulling up and away from the laptop, maintain pulling-pressure in the middle of the laptop keyboard. Locking edge tabs on the keyboard keep it in place. As you continue pulling this laptop keyboard up and away, it releases from the tabs as it flexes. then you can pull outward helping to free it from these tabs.Popping the keyboard free from all its edges, pull it towards you at an upward angle releasing the rear of the laptop keyboard.
part 2
How to Remove laptop Fan
1. it is a necessary to Remove the volume and power button plastic cover. By pushing each corner slightly towards the space bar, each corner of the cover releases and can be lifted up slightly. Finally, pop the panel’s center free. Lifting from the rear, swing the cover toward the front clearing the buttons and lifting it free.
2.Remove the 6 screws securing the cooling fan. Gently lift the laptop fan on an angle upwards noting how its plug wire is routed to the laptop motherboard. Gently unplug it and remove the fan assembly. You may have to lift the plastic boarder a little to free the fan assembly.
3.install the new or replacement laptop fan in the reverse of the removal process making sure it is seated firmly on the motherboard and its exhaust is flush with the vent panel.
4.Route the fan’s power wire, plugging its connector firmly into the socket. Mount the fan with its screws and replace the switch cover if it was removed earlier.
5.Install laptop keyboard pressing down on the edges making sure to get them under the locking tabs before pressing down firmly on the keyboards center where the trackpoint stick is. This ensures the keyboard’s connector is seated properly. Replace all screws removed, insert battery and connect power supply.
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Tags: IBM ThinkPad, Laptop Fan, laptop keyboard, laptop parts

How to Replace IBM Thinkpad Cooling Fan

Is your IBM ThinkPad notebook running too hot? Replace that dusty, failing old heatsink fan unit with new orignail IBM laptop parts!let your laptop run more faster.The correct replacement part, a few small hand tools and basic maintain skill is all that’s necessary.you can find original IBM fan in www.laptoppartwholesale.com
Part 1
How to Remove laptop Keyboard
1.power off the laptop, remove the laptop battery and remove all screws on the underside of the laptop identified . Remove These attach to the laptop keyboard.2.Open the cover of laptop. Use your finger to begin pressing the keyboard out through the small hole inside the battery compartment. Your finger presses on the underside of the laptop keyboard button section.3.Slip a screwdriver underneath the keyboard button section you pushed out in the previous step. Pulling up and away from the laptop, maintain pulling-pressure in the middle of the laptop keyboard. Locking edge tabs on the keyboard keep it in place. As you continue pulling this laptop keyboard up and away, it releases from the tabs as it flexes. then you can pull outward helping to free it from these tabs.Popping the keyboard free from all its edges, pull it towards you at an upward angle releasing the rear of the laptop keyboard.
part 2
How to Remove laptop Fan
1. it is a necessary to Remove the volume and power button plastic cover. By pushing each corner slightly towards the space bar, each corner of the cover releases and can be lifted up slightly. Finally, pop the panel’s center free. Lifting from the rear, swing the cover toward the front clearing the buttons and lifting it free.
2.Remove the 6 screws securing the cooling fan. Gently lift the laptop fan on an angle upwards noting how its plug wire is routed to the laptop motherboard. Gently unplug it and remove the fan assembly. You may have to lift the plastic boarder a little to free the fan assembly.
3.install the new or replacement laptop fan in the reverse of the removal process making sure it is seated firmly on the motherboard and its exhaust is flush with the vent panel.
4.Route the fan’s power wire, plugging its connector firmly into the socket. Mount the fan with its screws and replace the switch cover if it was removed earlier.
5.Install laptop keyboard pressing down on the edges making sure to get them under the locking tabs before pressing down firmly on the keyboards center where the trackpoint stick is. This ensures the keyboard’s connector is seated properly. Replace all screws removed, insert battery and connect power supply.
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Tags: IBM ThinkPad, Laptop Fan, laptop keyboard, laptop parts