HP EliteDesk 800 G5 Maintenance and Service Guide - Page 83

Solving hard drive problems, File Explorer

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Computer powered off automatically and the Power LED flashes Red two times, once every second, followed by a two second pause, and the computer beeps two times. (Beeps stop after fifth iteration but LEDs continue flashing.) Computer powered off automatically and the Power LED flashes red four times and then white two times. Cause Solution The heat sink is not properly attached to the processor. not spin, make sure the fan cable is plugged onto the system board header. 3. If fan a plugged in and not spinning, replace it. Power LED flashes Red four times, once every second, followed by a two second pause, and the computer beeps four times. (Beeps stop after fifth iteration but LEDs continue flashing.) Computer powered off automatically and the Power LED flashes red three times and then white four times. Cause Solution Power failure (power supply is overloaded). 1. If equipped with a voltage selector, check that the voltage selector, located on the rear of the power supply (some models), is set to the appropriate voltage. Proper voltage setting depends on your region. 2. Open the access panel and ensure the power supply cable is seated into the connector on the system board. 3. Check if a device is causing the problem by removing all attached devices (such as hard drives or optical drives and expansion cards). Power on the system. If the system enters 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. 4. Replace the power supply. 5. Replace the system board. Solving hard drive problems Hard drive error occurs. Cause Hard disk has bad sectors or has failed. Solution 1. In Windows 10, type file in the taskbar search box, and then select File Explorer from the list of applications. In the left column, expand This PC, right-click on a drive, select Properties, and then select the Tools tab. Under Error checking, click Check. 2. Use a utility to locate and block usage of bad sectors. If necessary, reformat the hard disk. Solving hard drive problems 73

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Computer powered off automatically and the Power LED flashes Red two times, once every second, followed by a two second
pause, and the computer beeps two times. (Beeps stop after fifth iteration but LEDs continue flashing.)
Computer powered off automatically and the Power LED flashes red four times and then white two times.
Cause
Solution
The heat sink is not properly attached to the processor.
not spin, make sure the fan cable is plugged onto the system
board header.
3.
If fan a plugged in and not spinning, replace it.
Power LED flashes Red four times, once every second, followed by a two second pause, and the computer beeps four times. (Beeps
stop after fifth iteration but LEDs continue flashing.)
Computer powered off automatically and the Power LED flashes red three times and then white four times.
Cause
Solution
Power failure (power supply is overloaded).
1.
If equipped with a voltage selector, check that the voltage
selector, located on the rear of the power supply (some
models), is set to the appropriate voltage. Proper voltage
setting depends on your region.
2.
Open the access panel and ensure the power supply cable is
seated into the connector on the system board.
3.
Check if a device is causing the problem by removing all
attached devices (such as hard drives or optical drives and
expansion cards). Power on the system. If the system enters
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.
4.
Replace the power supply.
5.
Replace the system board.
Solving hard drive problems
Hard drive error occurs.
Cause
Solution
Hard disk has bad sectors or has failed.
1.
In Windows 10, type
file
in the taskbar search box, and
then select
File Explorer
from the list of applications. In the
left column, expand
This PC
, right-click on a drive, select
Properties
, and then select the
Tools
tab. Under
Error
checking
, click
Check
.
2.
Use a utility to locate and block usage of bad sectors. If
necessary, reformat the hard disk.
Solving hard drive problems
73