hp desktop red light flashing 4 times

There are different blinking light sequences that indicate what the issue is. For example, it can blink 3 times quickly, and then twice slowly which indicates 

The following table shows board-level LED and beep codes and the suggested recovery actions. Board-level means that the codes are built into the BIOS and operate free of the operating system. These codes are an attempt to standardize system diagnostics by incorporating them into the BIOS. note: These are not e-buzzer codes.

Hp desktop red light flashing 4 times Answer (1 of 5): Probably disk activity. It shows you when the disks are accessed but not which drive is being accessed. Since you don't tell us anything about your computer, it might be something else. Maybe it's your

Power light blinks red three times and then white two times Use this information to troubleshoot the computer. Memory is installed incorrectly or is bad.

That is a system board error generally pertaining to the memory overheating. Shut down your machine and clean it out thoroughly. If your uncomfortable doing 

The Diagnostic LED blinks red 8 times (once per second), then follows a 2-second pause, and then it beeps 8 times: This indicates an invalid system ROM based on 

Plug the power cord back in and check for the light. If it still blinks, remove the cord again and flip the little red switch near the PSU plug connection. This 

Thanks for replying. It is definitely an HP ProDesk 400 G5 Small Form Factor PC. All I can say is that it does 5 beeps with a red flashing light at each beep. These are lower-pitched beeps and sound slower in that sense? Then it does 7 higher-pitched beeps with a white flashing light at each one.

Titan · 1. Unplug your charger cord. · 2. Remove the battery. · 3. Press and hold the "Power" button for 30 seconds. · 4. Now plug back in the power/charger cord.

1/27 · In your model the 4 beep, red flashing light code means that there is a power supply overload of some kind. See the service manual at the link below, chapter 11, page 302 for how

Security is one of the greatest segments of attention to a blinking power light. When our device is showing a blinking power light, indicating that it is asleep