HP EliteDesk 800 95W G4 Maintenance and Service Guide - Page 71

Solving hard drive problems, Boot Options

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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. 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. Disk transaction problem. Cause Either the directory structure is bad or there is a problem with a file. Solution 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. Drive not found (identified). Cause Cable could be loose. The system may not have automatically recognized a newly installed device. The device is attached to a SATA port that has been hidden in Computer Setup. Drive responds slowly immediately after power-up. Solution Check cable connections. See reconfiguration directions in the Solving hardware installation problems on page 74 section. If the system still does not recognize the new device, check to see if the device is listed within Computer Setup. If it is listed, the probable cause is a driver problem. If it is not listed, the probable cause is a hardware problem. If this is a newly installed drive, run the Computer Setup utility and try adding a POST delay under Advanced > Boot Options. Run the Computer Setup utility and ensure Device Available is selected for the device's SATA port in Advanced > Port Options. Run Computer Setup and increase the POST Delay in Advanced > Boot Options. Solving hard drive problems 63

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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.
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.
Disk transaction problem.
Cause
Solution
Either the directory structure is bad or there is a problem with a
file.
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
.
Drive not found
(identified).
Cause
Solution
Cable could be loose.
Check cable connections.
The system may not have automatically recognized a newly
installed device.
See
reconfiguration
directions in the
Solving hardware installation
problems
on page
74
section. If the system still does not
recognize the new device, check to see if the device is listed within
Computer Setup. If it is listed, the probable cause is a driver
problem. If it is not listed, the probable cause is a hardware
problem.
If this is a newly installed drive, run the Computer Setup utility
and try adding a POST delay under
Advanced
>
Boot Options
.
The device is attached to a SATA port that has been hidden in
Computer Setup.
Run the Computer Setup utility and ensure
Device Available
is
selected for the device's SATA port in
Advanced
>
Port Options
.
Drive responds slowly immediately after power-up.
Run Computer Setup and increase the POST Delay in
Advanced
>
Boot Options
.
Solving hard drive problems
63