Solving Cd-Rom And Dvd Problems - HP 280 G4 Maintenance And Service Manual

Memory count during POST is wrong.
Cause
The memory modules may not be installed correctly.
Integrated graphics may use system memory.
Insufficient memory error during operation.
Cause
Too many Terminate and Stay Resident programs (TSRs) are
installed.
You have run out of memory for the application.
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 CD-ROM and DVD problems

If you encounter CD-ROM or DVD problems, see the common causes and solutions listed in the following table
or to the documentation that came with the optional device.
System will not boot from CD-ROM or DVD drive.
Cause
The device is attached to a SATA port that has been hidden in the
Computer Setup utility.
Removable Media Boot is disabled in the Computer Setup utility.
Network Boot is enabled in Computer Setup.
Non-bootable CD in drive.
Boot order not correct.
Solution
Check that the memory modules have been installed correctly and
that proper modules are used.
No action required.
Solution
Delete any TSRs that you do not need.
Check the memory requirements for the application or add more
memory to the computer.
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
Run the Computer Setup utility and ensure Device Available is
selected for the device's SATA port in Advanced > Port Options.
Run the Computer Setup utility and enable booting to removable
media in Boot Options.
Run the Computer Setup utility and disable Network Boot in Boot
Options.
Try a bootable CD in the drive.
Run the Computer Setup utility and change boot sequence in Boot
Options.
Solving CD-ROM and DVD problems 67