Verifying System Memory In System Setup (Bios); Testing Memory Using Epsa; Realtek Hd Audio Drivers; Thunderbolt Over Type-C - Dell Latitude 5480 Owner's Manual
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Verifying system memory in system setup (BIOS)
Steps
1. Turn on or restart your system.
2. Perform the following actions after the Dell logo is displayed
● With keyboard — Tap F2 until the Entering BIOS setup message appears. To enter the Boot selection menu, tap F12.
3. On the left pane, select Settings > General > System Information,
The memory information is displayed on the right pane.
Testing memory using ePSA
Steps
1. Turn on or restart your computer.
2. Press F12 or press Fn+PWR to invoke the ePSA diagnostics.
The PreBoot System Assessment (PSA) starts on your computer.
NOTE:
If you wait too long and the operating system logo appears, continue to wait until you see the login screen/
desktop screen. Turn off the computer and try again.
Results
If the memory test results in 25 or less errors, then the RMT basic feature automatically fixes the issues. The test will indicate
a pass result since the defect(s) have been removed. If the memory test results in 26 - 50 errors, the RMT basic feature masks
the defective memory blocks and results in pass with no memory replacement requirement. If the memory test results in more
than 50 errors, then the test is stalled and the result indicates that memory module replacement is required.
Realtek HD audio drivers
Verify if the Realtek audio drivers are already installed in the laptop.
Table 7. Realtek HD audio drivers
Before installation
Thunderbolt over Type-C
Thunderbolt is a hardware interface that combines data, video, audio, and power in a single connection. Thunderbolt combines
PCI Express (PCIe) and DisplayPort (DP) into one serial signal, and additionally provides DC power, all in one cable. Thunderbolt
1 and Thunderbolt 2 use the same connector as miniDP (DisplayPort) to connect to peripherals, while Thunderbolt 3 uses a USB
Type-C connector.
After installation
Technology and components
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