Question about HP Probook 6470b - Core I5 321

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ProBook 6470b with cooling fan problem

When I boot my laptop I get an error message saying there is the cooling fan is not working properly. Pleas advise

Posted by Anonymous on

3 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

bronk50
  • 27725 Answers

SOURCE: MY HP PROBOOK 6470B WILL NOT START UP

Step 1:
Restart your computer repeatedly tapping the f8 key to enter safe mode while the screen is black once in safe mode where the only things working will be your keyboard and mouse allowing you to attempt to repair your computer Windows Advanced Options Menu Please select an option: Safe Mode
Safe Mode with Networking
Safe Mode with Command Prompt Enable Boot Logging
Enable VGA mode
Last Known Good Configuration (your most recent settings that worked)
Directory Services Restore Mode (Windows domain controllers only)
Debugging Mode Start Windows Normally
Reboot
Return to OS Choices Menu Use the up and down arrow keys to move the highlight to your choice select safe mode with command prompt Click start run type cmd press Enter black screen should open DOS mode this will vary depending on your operating system type in net user username For eg. If you want to change administrator password , type net user Administrator It will prompt you to enter the new password. Enter the new password and the password is changed http://wiki.ljackson.us/Control_Userpasswords2 if this fails you will need to Select safe mode with networking to download you could download all of these or just one save them to a usb drive for later use if one fails to remove the password Windows Password Recovery Basic http://majorgeeks.com/CmosPwd_d239.html A CMOS BIOS password recovery tool Editors note: This tool should only be used by experienced computer users. Please see the enclosed read me if you would like to run it from Windows. Failure to follow instructions (from Windows) will cause your anti-virus to flag this as a virus. http://majorgeeks.com/Dr._Freeware_System_Utilities_d6416.html Dr.Freeware System Utilities which includes data recovery software, data backup, password reset tools for Windows helps you to maintain your system. Dr.Freeware is freeware, you can download and use it for free. http://download.cnet.com/lazesoft-recover-my-password/3000-18501_4-10973339.html
Lazesoft Recover My Password Home Edition is a very easy to use Windows password recovery freeware

http://download.cnet.com/password-cracker/3000-2092_4-10226556.html password cracker free

Posted on Feb 13, 2013

  • 1 Answer

SOURCE: Hp probook 4710s won't boot

Miltc484

Posted on Feb 22, 2013

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You may want to use Hiren's boot CD, there are some tools on it to reset BIOS passwords from different vendors.
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Try connecting it to an external monitor. If it works there, your lcd monitor needs replacing.

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The feet may have popped off the bottom, where the vents are located. Either replace the small feet (they just stick on) or set the laptop on a cooling stand so that the bottom is exposed to the air. You may also want to clean the vents.
Please remember to vote for me if you like my solution.

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I would want you to tell me if your Laptop feels hotter than usual.

If so... this in combination with the Boot device not found message means you may have two problems.

1: The hard disc is failing

2: Your cooling fan isn't working

Either one could cause the other to fail. If the hard drive is overheating the cooling fan may not be able to keep it cool enough to function properly,


If the cooling fan isn't working properly or the cooling vents are clogged the hard drive and/or the intergrated circuitry could be overheating

If you do not sense any over heating.

You hard drive may have crashed, if you have another one you can put in the laptop to see if it is recognized.

Would help to have some sort of disc you can boot off of that would recognize a hard drive such as a Linux live CD or Hiren's boot CD or some sort of PE disc. Maybe a Windows install disc. to try and find out the cause.

Good Luck

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After bios upgrade had same problem. DISCONNECT AC POWER PULLED BATTERY FOR AT LEAST 5 MINUTES THEN REATTACHED BATTERY AND FAN WORKED ON NEXT RESTART. Also make sure boot menu ( tap F12 at start-up) is set to boot from Hard Drive. I also started on battery power with no ac adapter.

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