1、笔记本电脑清除密码的方法一般有四种，分别是：通用密码、跳线开关、BIOS 电池放电、笔 记本厂家提供的特殊方法一、通用密码通用密码不是每个笔记本厂家的机器都有，目前有通用密码的机型有。ASE：昭阳 7100、7110、7000：通用密码为 maximum昭阳 7200、7500、7550、6600：通用密码为 6475457CLEVO：昭阳 6100、6200、6220、6230：通用密码为 659835COMPAL：30B3 和 30W 的通用密码相同：blvjch适用机型：昭阳 1200、1210、1250 、8350、8360、8365 等。二、跳线开关FIC ：5600、5650、56
2、60、5750 清除密码跳线开关是 SW3-4，即 SW3 的第四个开关。具体方法是将电源及电池去掉，将内存盖板卸掉后即可看到 SW3（靠近BIOS），将第四个开关拨到 ON 位置，再 拨回原位即可（有的机型会重新启动）。适用机型：昭阳 6700、6800、7600、6895、7695 系列。A450 清除密码跳线开关是 SW6-6，位于内存盖板下。方法与 5600 系列相同。适用机型：昭阳 2100、6900、8010 系列。三、BIOS 放 电上面介绍的机型清除密码方法比较简单易行，剩下的其它机型就只能靠拆开机器拔掉 BIOS 电池放电来清除密码了，因为涉及拆机器，所以此方法是最麻烦的方法
3、也是清除密码最基本的方法。四、笔记本厂家提供的特殊方法FIC 6000 系列机器：利用特殊的并口短路 环 和清密码专用软盘。并口短路环的制作遵循以下原则：PIN 2 to PIN 15PIN 3 to PIN 13PIN 4 to PIN 11PIN 5 to PIN 12PIN 6 to PIN 10具体方法是将短路环接入并口，将清密码专用软盘插入软驱中，开机，看到软驱指示灯一闪即灭，此时密码已经清掉，断电重新开机即可。适用机型：昭阳 5200、6500、7250、6588、6500E。SANYO 机器设计独特，拔掉 BIOS 电池也无法清除掉密码，只能使用厂家提供的方法才能清掉：USX3P
4、：昭阳 8100、8200：厂家提供了一个专门清除密码的程序“password.exe”。具体方法：1、将两台机器用串口线连接起来（另一台机器不限机型）。2、启动另一台机器（不限机型）后执行 password.exe，程序执行后屏幕会提示要求 8100 或 8200 开机。3、将 8100 或 8200 内存盖板取下，找到电阻 R87，用 镊子将其短路，然后开机，另一台机器屏幕将会显示正在更新 BIOS 以及进度值，直到提示结束。如果不行，多试几回。SANYO FX-8/FX-8V：昭阳 9000 系列FX-8 和 FX-8V 的区别是 PCMCIA 和显示控制芯片不同，因此 BIOS信息也不
5、同。厂家为此提供了两个清除密码程序：PASSCL8 （适用 FX-8）、PASSCL8V（适用 FX-8V）。这两种机器外观一样，如何区别呢？将内存盖板卸下，在内存插槽上有一行数字，第一位为“4”表示 FX-8；第一位为“2”表示 FX-8V。具体操作步骤为：1、 制作清密 码软盘 （用 PASSCL8 制作清除 FX-8 主板密码软盘，用PASSCL8V 制作清除 FX-8V 主板密码软盘）命令格式：PASSCL8 /CRISIS 或 PASSCL8V /CRISIS 按照提示制作完成软盘。2、 保持关机状态（保证电池有电或接入 AC 适配器），软驱中插入作好的相应机型的软盘。3、 将所有扩
6、充内存拔掉4、 如果主板是 FX-8 型 ：用细针捅主机底部光 驱附近的小洞，机器将自动启动并运行软盘中程序清除掉密码。如果主板是 FX-8V 型 ：卸掉内存盖板，短路内存附近电阻 R991，机器将自动启动并运行软盘中的程序清除掉密码。如果不行，多试几回。昭阳 S300 系列笔 记本电脑清除硬盘密码程序的使用说明：1需要有 2 台联想昭阳 S300 机器，一台正常，一台需要解除密码。2.先启动要解除密码的机器，按 F2 进入 BIOS 设置，找出硬盘序列号，并记下前 8 位。3.启动正常的机器，运行 MASHDD2.EXE，会得到一个密码（注意大小写）。4.再次启动有问题的机器，在提示输入密码
7、的时候，输错 3 次，然后输入正确的密码（注意大小写）。5.完成。注意：该软件只能运用在联想昭阳 S300 机型上！昭阳 v6 清除密码方法：打开内存盖板，在内存边有两个 J1 小块，短接 5 秒中以上。昭阳 8500 系列拔掉 CMOS 电池，长时间短接 COMS 电池引角，即可放电。昭阳 X500（Cq12）Pls open the DRAM door and short J1(location in the attach file) about 3 second at least to clear password.昭阳 70/81 系列清除方法：打开内存后盖，会看到 6 个 DIP 开
8、关；将第四个 DIP 开关从 OFF 拨到ON，开机加电，再关机，将 DIP 从 ON 拨到 OFF 即可。昭阳 15清除方法：拨掉 CMOS 电池放电；CMOS 电池位置：在触控板左下角；MITAC 7233 产品对应联想机型：15XX 系列 跳线开关名称：SW2SWITCH（SW2） 1 2 3 LCD 类型ON ON ON 133 HITACHI TX34D61VC1HADOFF ON ON 121 MITSUBISHI 12。1 AA121SJ03ON OFF ON 131 HYUNDAI HT13X14OFF OFF ON 121 SANYO TM121SV-02L01ON ON O
9、FF 121 SANYO TM121SV-02L03（LVDS）121 MITSUBISHI 12.1 AA121SJ23OFF ON OFF 121 SANYO HPA LM-JK63-22NTRON OFF OFF 121 SHARP LQ 12S1LH12OFF OFF OFF 121 DSTN SR120522NTR昭阳 v701. 清除 BIOS 密码须通过主板上的 4 针跳线中的 PIN1：（拆开键盘，位于键盘下）默认为 OFF，拨到 ON，进入 BIOS 进行设置，清除密码后，将跳线拨回 OFF 即可。2. 指纹锁的强行清除，须拆下键盘，将指纹识别器与主板的连接线拔下；开机进入
10、BIOS，将指 纹识别功能 Disabled，之后再将连线接回。D500:通用密码：testeE600内存第二个插槽处有个的跳线：（ cmos_clr），找个镊子短接那两点一到两秒就行了！T600This section provides an easy step in doing system upgrades for your notebook computer.Jumper Settings (For M285 / M288 Model)This section provides a jumper setting lists of configuring the notebook.Fig
11、ure 2-5 Switch 5 Jumper SettingKeyboard Type Select ( SW5 )K/B Type Pos #1 POS #2US KEYBOARD OFF OFFRESERVE OFF ONJP KEYBOARD ON OFFUK KEYBOARD ON ONLogo Select ( SW5 )Logo Pos #3RESERVE OFFRESERVE ONPassword Override ( CMOS / RTC Data ) Jumper SettingPassword Override Pos#4Password Normal OFFClear
12、Password ONi Before doing password override, take off AC adapter and battery first.Main Board ID SelectMain Board ID Pos #5 POS #6PCMCIA USE INTA# OFF OFFRESERVE OFF ONPCMCIA USE INTB# ON OFFRESERVE ON ONCD-ROM Master / Slave SelectCD-ROM Pos #7RESERVE OFFRESERVE ONCMOS Clear SelectCD-ROM Pos #8Norm
13、al OFFClear CMOS ONi Pos # 8 is N/A Pin for reserve2.3.2 Jumper SettingSW6 / CPU VID SELECT (Only for M288 Model)Figure 2-6 Switch 6 Jumper SettingProcessor PinsPIN5 PIN4 PIN3 PIN2 PIN1 Vcc_maxOFF OFF OFF OFF OFF VRM output offOFF OFF OFF OFF ON 1.100OFF OFF OFF ON OFF 1.125OFF OFF OFF ON ON 1.150OF
14、F OFF ON OFF OFF 1.175OFF OFF ON OFF ON 1.200OFF OFF ON ON OFF 1.225OFF OFF ON ON ON 1.250OFF ON OFF OFF OFF 1.275OFF ON OFF OFF ON 1.300OFF ON OFF ON OFF 1.325OFF ON OFF ON ON 1.350OFF ON ON OFF OFF 1.375OFF ON ON OFF ON 1.400OFF ON ON ON OFF 1.425OFF ON ON ON ON 1.450ON OFF OFF OFF OFF 1.475ON OFF
15、 OFF OFF ON 1.500ON OFF OFF ON OFF 1.525ON OFF OFF ON ON 1.550ON OFF ON OFF OFF 1.575ON OFF ON OFF ON 1.600ON OFF ON ON OFF 1.625ON OFF ON ON ON 1.650ON ON OFF OFF OFF 1.675ON ON OFF OFF ON 1.700ON ON OFF ON OFF 1.725ON ON OFF ON ON 1.750ON ON ON OFF OFF 1.775ON ON ON OFF ON 1.800ON ON ON ON OFF 1.8
16、25ON ON ON ON ON 1.850V21CPU 跳 线K6 系列This section provides an easy step in doing system upgrades for your notebook computer.Jumper SettingsThis section provides a jumper setting lists of configuring the notebook.Keyboard Type SelectK/B Type Pos #1 POS #2US KEYBOARD OFF OFFRESERVE OFF ONJP KEYBOARD O
17、N OFFUK KEYBOARD ON ONLogo SelectLogo Pos #3RESERVE OFFRESERVE ONPassword Override ( CMOS / RTC Data ) Jumper SettingPassword Override Pos#4RTC Battery Normal OFFClear (RTC) DATA ONi Before doing password override, take off AC adapter and battery first.Main Board ID SelectMain Board ID Pos #5RESERVE
18、 OFFRESERVE ONCD-ROM Master / Slave SelectCD-ROM Pos #6Master ONSlave OFFi Pos # 8 is N/A Pin for reserveS60CHKPWDISABLE ENABLESW1-3 ON OFFV71:1：MODEM 卡下面两焊点K70：Jumper SettingsThis section provides a jumper setting lists of configuring the notebook.Figure 2-5 Switch 5 Jumper SettingKeyboard Type Sel
19、ect ( SW5 )K/B Type Pos #1 POS #2US KEYBOARD OFF OFFRESERVE OFF ONJP KEYBOARD ON OFFUK KEYBOARD ON ONLogo Select ( SW5 )Logo Pos #3RESERVE OFFRESERVE ON69 系列Jumper SettingsThis section provides a jumper setting lists of configuring the notebook. The jumper switches are near the memory socket. To acc
20、ess the jumper switches, you may refer to section 2.3.3 for procedures on how to access memory socket.For CPU with SpeedStep (Geyserville) technologyPos#1 Pos#2 Pos#3 Pos#4 Pos#5 Pos#6PIII 600 / 500MHzSW4 On On On On Off OnSW5 Off On Off Off NC NCPIII 650 / 500MHzSW4 On On On On Off OnSW5 Off On Off
21、 Off NC NCFor CPU without SpeedStep (Geyserville) technologyPos#1 Pos#2 Pos#3 Pos#4 Pos#5 Pos#6PIII 450MHzSW4 On Off Off Off Off OffSW5 On On On Off NC NCPIII 500MHzSW4 On Off Off Off Off OffSW5 On On On Off NC NCCeleron 450MHzSW4 On Off Off Off Off OffSW5 On On On Off NC NCCeleron 500MHzSW4 On Off
22、Off Off Off OffSW5 On On On Off NC NCCPU Core Voltage Jumper SettingLow VoltageHigh Voltage SW5-#1SW4-#2 SW5-#2SW4-#3 SW5-#3SW4-#4 SW5-#4SW4-#5 SW4-#1SW4-#60.00v Off Off Off Off On1.30v On Off Off Off On1.35v Off On Off Off On1.40v On On Off Off On1.45v Off Off On Off On1.50v On Off On Off On1.55v O
23、ff On On Off On1.60v On On On Off On1.65v Off Off Off On On1.70v On Off Off On On1.75v Off On Off On On1.80v On On Off On On1.85v Off Off On On On1.90v On Off On On On1.95v Off On On On On2.00v On On On On OnVcore_det Jumper Setting (SW6)Sw6 Pos#3FC-PGA Processor OnMicro-PGA2 Processor OffLogo Selec
24、tion Setting (SW6)Logo Selection Pos#1 Pos#2No Logo Off OffReserved On OffReserved Off OnReserved On OnBIOS Selection Setting (SW6)Machine model Pos#3A450 OffA430 OnKeyboard Type Selection Setting (SW6)Keyboard Type Pos#4 Pos#5US Off OffJapan On OffReserved Off OnUK On OnPassword Override (CMOS/RTC
25、Data) Jumper Setting (SW6)SW6 Pos#6RTC Battery Normal OffClear (RTC) DATA OnBefore doing password override, take off AC adapter and battery first.Password Override ( CMOS / RTC Data ) Jumper Setting ( SW5 )Password Override Pos#4Password Normal OFFClear Password ONi Before doing password override, t
26、ake off AC adapter and battery first.Main Board ID Select ( SW5 )Main Board ID Pos #5 POS #6PCMCIA USE INTA# OFF OFFRESERVE OFF ONPCMCIA USE INTB# ON OFFRESERVE ON ONCD-ROM Master / Slave Select ( SW5 )CD-ROM Pos #7RESERVE OFFRESERVE ONi Pos # 8 is N/A Pin for reserveL510：打开键盘可以看到 BIOS 电池，拔掉 BIOS 电源
27、线，即可。Please find the switch on Mianboard near printer connecter & audio DJconnecter, mover the switch 1 to ON, then will by pass BIOS checking.510 硬盘密码的问题，出于安全考虑，如果忘了，就要换硬盘,所以，务必要求客户牢记密码。V80：V31Jumper SettingsThis section provides a jumper setting lists of configuring the notebook.Switch 1Keyboard T
28、ype SelectK/B Type Pos #2 POS #3US KEYBOARD OFF OFFRESERVE OFF ONJP KEYBOARD ON OFFUK KEYBOARD ON ONDVDSELLogo Pos #1Select CD-ROM OFFSelect DVD ONPassword Override ( CMOS / RTC Data ) Jumper SettingPassword Override Pos#4RTC Battery Normal OFFClear (RTC) DATA ONi Before doing password override, tak
29、e off AC adapter and battery first.V32将 sw3 的 pin2 打到 on 就可以了，不过这个 sw3 比较难找，它的位置在主板的 pc 卡槽的里面，在 modem 卡下面，基本上放一下电和换块主板差不多。E100拔除 CMOS 电池。K31/21Keyboard Type SelectK/B Type Pin #2 Pin #3US KEYBOARD OFF OFFRESERVE OFF ONJP KEYBOARD ON OFFUK(GR) KEYBOARD ON ONPassword Override ( CMOS / RTC Data ) Jumpe
30、r SettingPassword Override Pin #4RTC Battery Normal OFFClear (RTC) DATA ONBefore doing password override, take off AC adapter and battery first.CD-ROM Master / Slave SelectCD-ROM Pin #6Master OFFSlave ONPin # 1 & # 5 are N/A Pin for reserveY810 如何清 pwd键盘接口处有跳线，将 SW1 拨到 8 即可 clear bios pwdS180 如何清 pw
31、dSW1 4Password Normal OFFClear Password ONY520 BIOS 密码清除To switch “SW1“,“1ON“, we can by pass the password checking.(beside audio DJ control panel FPC connecter)K71：拔 CMOS 电池，如果不能清除，需要将电池的两个接口短路（时间比较久）。E360Dip Switch (SW3)KeyboardSelect1 Bit1Refer to the below table 1.K/B controllerPort 60*1Keyboard
32、Select2 Bit2Refer to the below table 1.K/B controllerPort 61*1Sign On Loge Bit3 Base on customer request K/B controllerPort 63*1Password Bit4 This bit is for password override. ON: Override OFF: Available (factory setting)K/BControllerPort 64For M/B version Bit5ReservedK/B controllerPort 62*1Reserve Bit6ReservedN.CCSEL Bit7ON : connect to GNDOFF : NCRTC Clear Bit8ON : COMS SRAM ClearOFF : Reserved
