Power LED flashes Red five times, once every second, followed by a two second pause, and the computer beeps five times. (Beeps stop
after fifth iteration but LEDs continue flashing.)
Cause
Memory is installed incorrectly or is bad.
Solving USB flash drive problems
If you encounter USB flash drive problems, common causes and solutions are listed in the following table.
USB flash drive is not seen as a drive letter in Windows.
Cause
The drive letter after the last physical drive is not available.
USB flash drive not found (identified).
Cause
The device is attached to a USB port that has been hidden in
Computer Setup.
The device was not properly seated before power-up.
System will not boot from USB flash drive.
Cause
Boot order is not correct.
Removable Media Boot is disabled in the Computer Setup utility.
The computer boots to DOS after making a bootable flash drive.
Cause
Flash drive is bootable.
Flash drive is defective.
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Chapter 6 Troubleshooting without diagnostics
Solution
1.
Reseat DIMMs. Power on the system.
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.
Solution
Change the default drive letter for the flash drive in Windows.
Solution
Run the Computer Setup utility and enable USB ports in Advanced >
Port Options.
Ensure the device is fully inserted into the USB port before applying
power to the system
Solution
Run the Computer Setup utility and change boot sequence in
Advanced > Boot Options.
Run the Computer Setup utility and enable booting to removable
media in Advanced > Boot Options. Ensure USB is enabled in
Storage > Boot Order.
Solution
Install the flash drive only after the operating system boots.
Try a different flash drive.