Dell Desktops Power LED Flashes During a Long Boot after Changing the Memory
Summary: The following article provides information about why a Dell desktop takes a long time to boot after a memory change. The Power Light Emitting diode (LED) is seen to breathe throughout the start-up. ...
Symptoms
The desktop takes a long time to boot, and the power LED breathes throughout
You may experience the following problem after changing the Double Data Rate 5 (DDR5) memory on a Dell desktop such as the Dell Tower Plus EBT2250. The power LED breathes during the next start-up, and it takes a long time to boot. (A breathing LED is another way of saying the LED is flashing slowly.) After one to four minutes, the desktop finishes booting into the operating system.
Cause
This is due to the memory change. The Intel Memory reference code for DDR5 memory makes your desktop train the new memory after you first turn the desktop on. Turning the desktop on enables the Self-Adaptive Voltage (SAGV).
Resolution
Your desktop exhibits the expected behavior when it triggers the memory re-training after you change the memory. Your desktop needs more time to boot than usual in these circumstances. Your desktop boots to the operating system if you give it some time.