HP Pro Mini 260 G9 Desktop PC Maintenance and Service Guide - Page 50

HP Pro Mini 260 G9 Desktop PC Manual

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Cause Processor thermal protection activated. A fan might be blocked or not turning, or the heat sink is not properly attached to the processor. Solution 1. Be sure that the computer air vents are not blocked and the processor cooling fan is running. 2. Open the access panel, press the power button, and see if the processor fan (or other system fan) spins. If the fan does not spin, be sure that the fan cable is plugged onto the system board header. 3. If the fan is plugged in and not spinning, replace it. Power light blinks red four times followed by a two-second pause and the computer beeps four times (Beeps stop after fifth iteration but lights continue blinking) Use this information to troubleshoot the computer. Cause Power failure (power supply is overloaded). Solution 1. If the computer has 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 be sure that the power supply cable is seated into the connector on the system board. 3. Check whether a device is causing the problem by removing all attached devices (such as hard drives or optical drives and expansion cards). Turn 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 These tables provide common causes and solutions for hard drive problems. Hard drive error occurs Use this information to troubleshoot the computer. Cause Hard disk has bad sectors or has failed. Solution 1. In Windows, 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 a drive, select Properties, and then select the Tools tab. Under Error checking, select Check. 2. Use a utility to locate and block usage of bad sectors. If necessary, reformat the hard disk. Disk drive transaction problem Use this information to troubleshoot the computer. Power light blinks red four times followed by a two-second pause and the computer beeps four times (Beeps stop after fifth iteration but lights continue blinking) 43

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Solution
Cause
1.
Be sure that the computer air vents are not blocked and the processor
cooling fan is running.
2.
Open the access panel, press the power button, and see if the processor
fan (or other system fan) spins. If the fan does not spin, be sure that the
fan cable is plugged onto the system board header.
3.
If the fan is plugged in and not spinning, replace it.
Processor thermal protection activated. A fan
might be blocked or not turning, or the heat sink
is not properly attached to the processor.
Power light blinks red four times followed by a two-second pause and the computer
beeps four times (Beeps stop after fifth iteration but lights continue blinking)
Use this information to troubleshoot the computer.
Solution
Cause
1.
If the computer has 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 be sure that the power supply cable is
seated into the connector on the system board.
3.
Check whether a device is causing the problem by removing all attached
devices (such as hard drives or optical drives and expansion cards). Turn
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.
Power failure (power supply is overloaded).
Solving hard drive problems
These tables provide common causes and solutions for hard drive problems.
Hard drive error occurs
Use this information to troubleshoot the computer.
Solution
Cause
1.
In Windows, 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 a drive, select
Properties
, and then select the
Tools
tab.
Under
Error checking
, select
Check
.
2.
Use a utility to locate and block usage of bad sectors. If necessary,
reformat the hard disk.
Hard disk has bad sectors or has failed.
Disk drive transaction problem
Use this information to troubleshoot the computer.
Power light blinks red four times followed by a two-second pause and the computer beeps four times (Beeps stop after fifth
iteration but lights continue blinking)
43