I
iwilliamsJul 31, 2025
How to fix CMOS battery failure in Dell OptiPlex Small Form Factor 7020?
- MMichael ParkerJul 31, 2025
In the event of CMOS battery failure, the amber LED may blink. Replace the CMOS battery.

How to fix CMOS battery failure in Dell OptiPlex Small Form Factor 7020?
In the event of CMOS battery failure, the amber LED may blink. Replace the CMOS battery.
What happens if invalid memory is installed in Dell OptiPlex Small Form Factor 7020?
If invalid memory is installed, the amber LED may blink. Ensure the correct memory is installed.
How to fix flash corruption detected by SBIOS in Dell OptiPlex Small Form Factor 7020 Computer Hardware?
If flash corruption is detected by SBIOS, the amber LED may blink. Reflash the BIOS.
| RAM | Up to 16 GB DDR3 |
|---|---|
| Form Factor | Small Form Factor (SFF) |
| Chipset | Intel Q87 |
| Storage | Up to 1 TB HDD or 512 GB SSD |
| Graphics | Integrated Intel HD Graphics 4600 |
| Operating System | Windows 10 Pro |
| Ports | USB 3.0, USB 2.0, HDMI, DisplayPort, RJ-45, Audio jacks |
| Expansion Slots | 1 PCIe x16, 1 PCIe x1 |
| Dimensions | 29.2 x 10.5 x 36.4 cm |
| Weight | 5.6 kg |
Essential safety guidelines, ESD handling, and precautions before working inside.
Instructions for replacing power supply, processor fan, and system board.
Overview of boot, device, power, and performance settings.
Settings for TPM, passwords, and secure boot configurations.
Running system diagnostics, understanding LED codes, and OS recovery.











