Compaq nc6400 Support Question

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Question posted by Anonymous-169774 on November 8th, 2021

When On Hp Compaq 6400 only caps lock key blinking End Screen Black Only

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Answer #1: Posted by Technoprince123 on November 8th, 2021 8:07 AM

This answer was accepted by the poster of the original question.

Technoprince123

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"Solved: Black screen on boot, caps lock blinking - Compaq Presario C... - HP Support Community - 2670987" https://h30434.www3.hp.com/t5/Notebooks-Archive-Read-Only/Black-screen-on-boot-caps-lock-blinking-Compaq-Presario-CQ57/td-p/2670987

"SOLVED: Laptop turns on but screen is black. - Compaq Presario CQ60 - iFixit" https://www.ifixit.com/Answers/View/128612/Laptop+turns+on+but+screen+is+black.

Please response if this answer is acceptable and solw your problem thanks

Answer #2: Posted by SonuKumar on November 8th, 2021 9:03 AM

SonuKumar

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https://h30434.www3.hp.com/t5/Notebooks-Archive-Read-Only/Black-screen-on-boot-caps-lock-blinking-Compaq-Presario-CQ57/td-p/2670987

https://www.youtube.com/watch?v=gE8j-RPZBmM

https://www.youtube.com/watch?v=0_PdCKEBBLk

https://www.youtube.com/watch?v=DT3hxY6m6IM

https://www.askmefast.com/Compaq_CQ57_laptop_blank_screen_and_caps_lock_button_blinks_twice-qna3560927.html

https://www.askmefast.com/Compaq_cq56_black_screen_and_caps_lock_light_keeps_flashing_and_f12_light_is_red-qna8157441.html

Please respond to my effort to provide you with the best possible solution by using the "Acceptable Solution" and/or the "Helpful" buttons when the answer has proven to be helpful.

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Related Compaq nc6400 Manual Pages

End User License Agreement - Page 1

... LICENSE AGREEMENT PLEASE READ CAREFULLY BEFORE USING THIS EQUIPMENT: This End-User license Agreement ("EULA") is a legal agreement between (a) you (either an individual or a single entity) and (b) Hewlett-Packard Company ("HP") that governs your HP product ("HP Product"), that it is provided to the terms and conditions of the software license agreement accompanying such...

End User License Agreement - Page 2

...The use the Software Product for your HP Product, whether in relation to support services related to the TRANSFER. Prior to the transfer, the end user receiving the transferred product must ...are protected by law, including but not limited to the original Software Product provided by HP unless HP provides other form, may not sublicense, assign or transfer the license or Software Product...

ProtectTools (Select Models Only) - Windows Vista - Page 4

...files and folders 29 Sending and receiving encrypted e-mail 29 Changing the Basic User Key password 30 Advanced tasks ...31 Backing up and restoring 31 Creating a backup file ... Security 32 Enabling Embedded Security after permanent disable 32 Migrating keys with the Migration Wizard 33 5 BIOS Configuration for HP ProtectTools General tasks ...35 Managing boot options ...35 Enabling and...

ProtectTools (Select Models Only) - Windows Vista - Page 5

...up an identity 50 Restoring an Identity 51 Clearing an identity from the system 51 Locking the computer ...52 Using Windows Logon ...52 Logging on to Windows with Credential ..." page to require user verification before Single Sign On 62 7 Device Access Manager for HP ProtectTools Starting background service ...64 Simple configuration ...65 Device class configuration (advanced 66 Adding a ...

ProtectTools (Select Models Only) - Windows Vista - Page 9

... HP ProtectTools Function module Computer Setup setup password NOTE Also known as : Embedded Security password Protects access to the computer contents. When used for power-on (BIOS) authentication. Smart card PIN Smart Card Security Smart card recovery file password Java™ Card PIN Smart Card Security Java Card Security Basic User Key...

ProtectTools (Select Models Only) - Windows Vista - Page 10

...recovery file Credential Manager, by IT administrator NOTE Also known as: Emergency Recovery Token Key password Protects access to the Emergency Recovery Token, which is a backup file for ...Embedded Security. Protects access to the Credential Manager recovery file. HP ProtectTools password Set in this HP ProtectTools Function module Emergency Recovery Token password Embedded Security, by IT...

ProtectTools (Select Models Only) - Windows Vista - Page 11

... creating passwords, you write down your password, do not store it backwards. ● Change passwords regularly. ENWW Managing HP ProtectTools passwords 5 You might change only a couple of letters throughout your password being compromised: ● Use passwords with... special characters and punctuation marks. ● Substitute special characters or numbers for letters in a key word.

ProtectTools (Select Models Only) - Windows Vista - Page 13

..., do not forget the smart card PIN. The smart card will be between 4 and 8 numeric characters. Select Start > All Programs > HP ProtectTools Security Manager. 3. Initializing the smart card You must be locked and made unusable unless the smart card PIN is entered. 7. In the left pane, click Smart Card Security, and then...

ProtectTools (Select Models Only) - Windows Vista - Page 31

...computer to use the embedded chip as Microsoft® Outlook and Internet Explorer) for HP ProtectTools. This software module provides the following security features: ● Enhanced Microsoft Encryption...protecting user data ● Data management functions, such as backing up and restoring the key hierarchy ● Support for third-party applications (such as an authentication factor when ...

ProtectTools (Select Models Only) - Windows Vista - Page 32

...risk, it is highly recommended that your preferences and exit Computer Setup, use the arrow keys to select File > Save Changes and Exit. Under Embedded Security, if the device ...accept the changes to Enable. 7. Open Computer Setup by turning on -screen instructions. 26 Chapter 4 Embedded Security for HP ProtectTools. Failure to select Security > Setup password, and then press enter....

ProtectTools (Select Models Only) - Windows Vista - Page 33

...token password, and then click Next. 6. The Embedded Security User Initialization Wizard opens. The HP ProtectTools Embedded Security Initialization Wizard opens. 2. Set and confirm an owner password, and then... to set up a basic user account at the far right of the Basic User Keys for all users. Initializing the embedded security chip In the initialization process for Embedded Security...

ProtectTools (Select Models Only) - Windows Vista - Page 76

... basic user account 28 Basic User Key password changing 30 setting 28 biometric readers 47 BIOS administrator ...Computer Setup setup password changing 42 setting 41 Credential Manager for HP ProtectTools account, adding 53 account, removing 53 administrator tasks ...identity, removing 51 identity, restoring 51 Java Card, registering 47 locking 52 logging on 45 logon password 4 logon specifications 59 logon ...

ProtectTools (Select Models Only) - Windows Vista - Page 77

... stringent security 42 E Embedded Security for HP ProtectTools backup file, creating 31 basic user account 28 Basic User Key 28 Basic User Key password, changing 30 certification data, restoring 31...24 user, creating 22 L locking workstation 52 M managing identity 50 N network account 53 O owner password changing 32 definition 4 setting 27 P password Basic User Key 30 changing owner 32 changing ...

Notebook Tour - Page 8

... sound is in standby. When the battery reaches a critical low-battery condition, the battery light begins blinking rapidly. Blinking amber: A battery that is on . Lights Component (1) Power lights * (2) (2) Wireless lights† (2) (3) Caps lock light (4) Num lock light (5) Volume mute light (6) Battery light 4 Chapter 1 Components Description On: The computer is the only available...

Notebook Tour - Page 27

... C cable RJ-11 (modem) 18 caps lock light 4 Certificate of Authenticity label 19 ...key identifying 7 function keys identifying 7 H hard drive bay, identifying 14 headphone (audio-out) jack 12 hotkeys battery charge information 8 decreasing screen brightness 8 displaying system information 7 increasing screen brightness 8 initiating standby 7 setting ambient light sensor 8 switching screen...

Notebook Tour - Page 28

...caps lock 4 drive 5, 9 mute 4 num lock 4 power 4, 9 volume 4 wireless 4, 9 lock...num lock light 4 O operating environment specifications 21 operating system Microsoft Certificate of Authenticity label 19 Product Key 19 optical drive, identifying 11 P PC ... screen brightness hotkeys 8 screen image, switching 8 security cable slot 10 serial number, computer 19 service tag 19 slots memory module 14 PC ...

Notebook Tour - Windows Vista - Page 8

... a wireless local area network (LAN) device and/or a Bluetooth® device, is turned on . Blinking amber: A battery that is the only available power source has reached a low battery level. Lights Component (1) Power lights* (2) (2) Wireless lights† (2) (3) Caps lock light (4) Num lock light (5) Volume mute light (6) Battery light 4 Chapter 1 Components Description On: The computer is...

Notebook Tour - Windows Vista - Page 26

... C cable RJ-11 (modem) 18 caps lock light 4 Certificate of Authenticity label 19 compartments...key identifying 7 function keys identifying 7 H hard drive bay, identifying 14 headphone (audio-out) jack 12 hotkeys battery charge information 8 decreasing screen brightness 8 displaying system information 7 increasing screen brightness 8 initiating Sleep 8 setting ambient light sensor 8 switching screen...

Notebook Tour - Windows Vista - Page 27

...jack 11 num lock light 4 O operating environment specifications 20 operating system Microsoft Certificate of Authenticity label 19 Product Key 19 optical drive light 11 optical drive, identifying 11 P PC Card slot ...jack 11 S screen brightness hotkeys 8 screen image, switching 8 security cable slot 10 serial number, computer 19 service tag 19 Sleep hotkey 8 slots memory module 14 PC Card 12 security...

Power - Page 15

... (factory setting). or system-initiated standby. ● The power lights are turned on , press fn+f3. ● The power lights blink. ● Select Start > Turn Off Computer > Stand ● The screen clears. ENWW Initiating or resuming from standby Task Procedure Result Initiate standby. ● With the computer on . ● Your work returns...