HP RP7 Maintenance & Service Guide HP RP7 Retail System Model 7800 - Page 168

Solving processor problems, Solving USB flash drive problems

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Solving processor problems If you encounter processor problems, common causes and solutions are listed in the following table. Table F-14 Solving processor problems Poor performance is experienced. Cause Processor is hot. Solution 1. Make sure the airflow to the computer is not blocked. 2. Make sure the fans are connected and working properly (some fans only operate when needed). 3. Make sure the processor heat sink is installed properly. Power LED flashes red three times, once every second, followed by a two second pause. Cause Solution Processor is not seated properly or not installed. 1. Check to see that the processor is present. 2. Reseat the processor. Power LED flashes red eleven times, once every second, followed by a two second pause. Cause Solution The current processor does not support a feature previously 1. Install a TXT capable processor. enabled on this system. 2. Disable TXT in the Computer Setup (F10) utility. 3. Reinstall the original processor. Solving USB flash drive problems If you encounter USB flash drive problems, common causes and solutions are listed in the following table. Table F-15 Solving USB flash drive problems USB flash drive is not seen as a drive letter in Windows. Cause Solution The drive letter after the last physical drive is not available. Change the default drive letter for the flash drive in Windows. 158 Appendix F Troubleshooting Without Diagnostics

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Solving processor problems
If you encounter processor problems, common causes and solutions are listed in the following table.
Table F-14
Solving processor problems
Poor performance is experienced.
Cause
Solution
Processor is hot.
1.
Make sure the airflow to the computer is not blocked.
2.
Make sure the fans are connected and working properly
(some fans only operate when needed).
3.
Make sure the processor heat sink is installed properly.
Power LED flashes red three times, once every second, followed by a two second pause.
Cause
Solution
Processor is not seated properly or not installed.
1.
Check to see that the processor is present.
2.
Reseat the processor.
Power LED flashes red eleven times, once every second, followed by a two second pause.
Cause
Solution
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.
Solving USB flash drive problems
If you encounter USB flash drive problems, common causes and solutions are listed in the following
table.
Table F-15
Solving USB flash drive problems
USB flash drive is not seen as a drive letter in Windows.
Cause
Solution
The drive letter after the last physical drive is not available.
Change the default drive letter for the flash drive in Windows.
158
Appendix F
Troubleshooting Without Diagnostics