Thursday, April 14, 2016

HP ProOne 400 G1 All-in-One Business PC – Error codes – Error beeps – Disassembling procedure – How to restore – Creating recovery disc – Laptop and Desktop repair and service

Category: laptop and Desktop repair and Service 

Contents of this article 

  • How to recover data 
  • Led blinking and Beep diagnosing 
  • Disassembling procedure 

HP ProOne 400 G1

How to access and run HP PC Hardware Diagnostics - UEFI
To access the UEFI diagnostics:
1. Restart or turn on the computer and press Esc repeatedly until the BIOS boot menu appears.
2. Press F2 or select Diagnostics (F2).
After pressing F2, the BIOS sequentially searches three places for the system diagnostics:
a. First – a connected USB drive
b. Second – the hard disk drive.
c. Third – in the BIOS, a core set of diagnostics (for memory and hard disk drive) that are accessible only if the USB or hard disk drive versions are not detected.
Downloading HP PC Hardware Diagnostics to a USB device
1. Go to hp WEB
2. Click the Support & Drivers link.
3. Select the Drivers & Software tab.
4. Enter the product name in the text box and click Search.
5. Select your specific computer model.
6. Select your operating system.
7. In the Diagnostic section, click the HP UEFI Support Environment link. This link provides additional information.
- or -
Click the Download button and select Run. The download includes instructions (in English) on how to install the tools on the USB device.
System Restore
If you have a problem that might be due to software that you installed on your computer, use System Restore to return the computer to a previous restore point. You can also set restore points manually.
To start System Restore:
1. Close all open programs.
2. Click the Start button, right-click Computer, and then click Properties.
3. Click System protection, System Restore, click Next, and then follow the on-screen instructions.
To add restore points manually:
1. Close all open programs.
2. Click the Start button, right-click Computer, click Properties, and then click System protection.
3. Under Protection Settings, select the disk for which you want to create a restore point.
4. Click Create, and then follow the on-screen instructions.
System Recovery when Windows is not responding
If Windows is not responding, but the computer is working, follow these steps to perform a System Recovery.
1. Turn off the computer. If necessary, press and hold the power button until the computer turns off.
2. Disconnect all peripheral devices from the computer, except the monitor, keyboard, and mouse.
3. Press the power button to turn on the computer.
4. As soon as you see the HP logo screen, repeatedly press the F11 key on your keyboard until the Windows is Loading Files… message appears on the screen.
5. Under I need help immediately, click System Recovery.
6. If you are prompted to back up your files, and you have not done so, select Back up your files first (recommended), and then click Next. Otherwise, select Recover without backing up your files, and then click Next.
7. System Recovery begins. After System Recovery is complete, click Finish to restart the computer.
8. When Windows has loaded, shut down the computer, reconnect all peripheral devices, and then turn the computer back on.
Creating recovery media
To create recovery discs:
1. Close all open programs.
2. Click the Start button, click All Programs, click Security and Protection, and then click HP Recovery Media Creation. If prompted, click Yes to allow the program to continue.
3. Click Create recovery media using blank DVD(s), and then click Next.
4. Follow the on-screen instructions. Label each disc as you make it (for example, Recovery 1, Recovery 2), and then store the discs in a secure place.
To create a recovery USB flash drive:
1. Close all open programs.
2. Insert the USB flash drive into a USB port on the computer.
3. Click the Start button, click All Programs, click Security and Protection, and then click
Recovery Media Creation.
4. Click Create recovery media with a USB flash drive, and then click Next.
5. Select the USB flash drive from the list of media. The program will let you know how much storage is required to create the recovery drive. If the USB flash drive does not have enough storage capacity, it will appear grayed out, and you must replace it with a larger USB flash drive. Click Next.
6. Follow the on-screen instructions. When the process is complete, label the USB flash drive and store it in a secure place.
Using recovery media
To perform a System Recovery using recovery media:
1. If using a set of DVDs, insert the first recovery disc into the DVD drive tray, and close the tray. If you are using a recovery USB flash drive, insert it into a USB port.
2. If the computer is not responding, press and hold the power button for approximately 5 seconds or until the computer turns off.
or
Click the Start button, and then click Shut Down.
3. Disconnect all peripheral devices from the computer except the monitor, keyboard, and mouse.
4. Press the power button to turn on the computer.
5. Press Esc as the computer is powering on to see the startup menu. Use the arrow keys to select the boot menu and press Enter. Use the arrow keys to select the location where the recovery media is inserted (USB or DVD). Press Enter to boot from that device.
6. If Recovery Manager asks if you want to run System Recovery from Media or Hard Drive, select Media. On the Welcome screen, under I need help immediately, click Factory Reset.
7. If you are prompted to back up your files, and you have not done so, select Back up your files first (recommended), and then click Next. Otherwise, select Recover without backing up your files, and then click Next.
8. If you are prompted to insert the next recovery disc, do so.
9. When Recovery Manager is finished, remove the recovery disc or the recovery USB flash drive from the system.
10. Click Finish to restart the computer.
Diagnostic front panel LEDs and audible codes
LED indication
Beep
Possible Cause
Recommended Action
Red Power LED flashes two
times, once every second,
followed by a two second
pause. Beeps stop after fifth
iteration but LEDs continue until
problem is solved.
2
Processor thermal
protection activated:
A fan may be blocked or
not turning.
OR
The heat sink/fan
assembly is not properly
attached to the processor.
1. Ensure that the computer air vents are not
blocked and the processor cooling fan is
running.
2. Open hood, press power button, and see if
the processor fan spins. If the processor fan
is not spinning, make sure the fan's cable is
plugged onto the system board header.
3. If fan is plugged in, but is not spinning, then
replace heat sink/fan assembly.
4. Contact an authorized reseller or service
provider.
Red Power LED flashes three
times, once every second,
followed by a two second
pause. Beeps stop after fifth
iteration but LEDs continue until
problem is solved.

3
Processor not installed (not
an indicator of bad
processor).
1. Check to see that the processor is present.
2. Reseat the processor.

Red Power LED flashes four
times, once every second,
followed by a two second
pause. Beeps stop after fifth
iteration but LEDs continue until
problem is solved.

4
Power failure (power
supply is overloaded).
1. Open the hood and ensure the 4 or 6-wire
power supply cable is seated into the
connector on the system board.
2. Check if a device is causing the problem by
removing ALL attached devices. Power on
the system. If the system enters the POST,
then power off and replace one device at a
time and repeat this procedure until failure
occurs. Replace the device that is causing
the failure. Continue adding devices one at
a time to ensure all devices are functioning
properly.
3. Replace the power supply.
4. Replace the system board.
Red Power LED flashes five
times, once every second,
followed by a two second
pause. Beeps stop after fifth
iteration but LEDs continue until
problem is solved.

5
Pre-video memory error.
CAUTION: To avoid damage to the DIMMs or
the system board, you must unplug the computer
power cord before attempting to reseat, install, or
remove a DIMM module.
1. Reseat DIMMs.
2. Replace DIMMs one at a time to isolate the
faulty module.
3. Replace third-party memory with HP
memory.
4. Replace the system board
Red Power LED flashes six
times, once every second,
followed by a two second
pause. Beeps stop after fifth
iteration but LEDs continue until
problem is solved.
6
Pre-video graphics error.
For systems with a graphics card:
1. Reseat the graphics card.
2. Replace the graphics card.
3. Replace the system board.
For systems with integrated graphics, replace the
system board.
Red Power LED flashes seven
times, once every second,
followed by a two second
pause. Beeps stop after fifth
iteration but LEDs continue until
problem is solved.
7
System board failure
(ROM detected failure
prior to video).

Replace the system board.





Red Power LED flashes eight
times, once every second,
followed by a two second
pause. Beeps stop after fifth
iteration but LEDs continue until
problem is solved.
8
Invalid ROM based on
bad checksum.
1. Reflash the system ROM with the latest BIOS
image. See the “Boot Block Emergency
Recovery Mode” section of the Desktop
Management Guide for more information.
2. Replace the system board.
Red Power LED flashes nine
times, once every second,
followed by a two second
pause. Beeps stop after fifth
iteration but LEDs continue until
problem is solved.

9
System powers on but is
unable to boot.

1. Unplug the AC power cord from the
computer, wait 30 seconds, then plug the
power cord back in to the computer.
2. Replace the system board.
3. Replace the processor.
Red Power LED flashes eleven
times, once every second,
followed by a two second
pause. Beeps stop after fifth
iteration but LEDs continue until
problem is solved.

11
The current processor does
not support a feature
previously enabled on this
system.
1. Install a TXT capable processor.
2. Disable TXT in the Computer Setup (F10)
utility.
3. Reinstall the original processor.

Red Power LED flashes eleven
times, once every second,
followed by a two second
pause. Beeps stop after fifth
iteration but LEDs continue until
problem is solved.

12
MXM thermal shutdown.
1. Clean the MXM graphics card heat sink.
2. Replace the MXM graphics card heat sink.
3. Replace the MXM graphic card.

System does not power on and
LEDs are not flashing.
none
System unable to power
on.
Press and hold the power button for less than 4
seconds. If the hard drive LED turns green, the
power button is working correctly. Try the
following:
1. Replace the system board.
OR
Press and hold the power button for less than 4
seconds. If the hard drive LED does not turn on
green then:
1. Check that the unit is plugged into a
working AC outlet.
2. Open rear cover and check that the power
button cable is properly connected to the
system board.
3. Check to see if the 5V_aux light on the
system board is turned on. If it is turned on,
then replace the power button board and
cable. If the problem persists, replace the
system board.
4. Replace the AC adapter.
DISASSEMBLING PROCEDURE 
How to remove Rear cover
The computer has one main rear cover that allows access to internal components.
To remove the rear cover:
1. Prepare the computer for disassembly
2. Loosen the two captive screws at the bottom of the computer (1) to release the bottom edge of the rear cover.
3. Rotate the bottom edge of the rear cover up (2), and then lift the rear cover off of the computer (3).
How to remove Stand
The computer stand is secured to a VESA mount inside the computer chassis. You can remove the stand and install the computer on a wall, monitor arm, or other mounting fixture.
To remove the stand:
1. Prepare the computer for disassembly
2. Remove the rear cover
3. Remove the three screws (1) securing the stand to the rear cover, and then remove the stand (2).
4. Foot covers are stored on the inside of the rear cover.
Replacing a hard drive
The hard drive is located behind the rear cover on the lower left side of the computer (when viewed from behind). The drive is housed in a removable cage.
Any one of the following may be installed in the computer:
One 3.5-inch hard drive
One 2.5-inch solid state drive (SSD), self-encrypting drive (SED), or solid state hybrid drive (SSHD)
Removing a 3.5-inch hard drive
1. Prepare the computer for disassembly
2. Remove the rear cover
The hard drive cage can now be seen in the lower left side of the chassis.
3. Loosen the captive screw securing the hard drive cage in the chassis (1).
4. Slide the hard drive cage left, and then lift it out of the chassis (2)
Replacing the optical disc drive
The optical disc drive is located above the hard drive on the left side of the computer (when viewed from behind).
1. Prepare the computer for disassembly
2. Remove the rear cover
The optical disc drive can now be seen in the upper left side of the chassis.
3. Loosen the captive screw (1) through the optical disc drive bracket that secures the optical disc drive to the chassis.
4. Slide the optical disc drive left (2) to remove it from the chassis.