Increased thickness
DDR4 modules are slightly thicker than DDR3, to accommodate more signal layers.
Figure 2. Thickness difference
Curved edge
DDR4 modules feature a curved edge to help with insertion and alleviate stress on the PCB during memory installation.
Figure 3. Curved edge
Memory Errors
Memory errors on the system display the new ON-FLASH-FLASH or ON-FLASH-ON failure code. If all memory fails, the LCD
does not turn on. Troubleshoot for possible memory failure by trying known good memory modules in the memory connectors on
the bottom of the system or under the keyboard, as in some portable systems.
Realtek HD audio drivers
Verify if the Realtek audio drivers are already installed in the laptop.
Table 3. Realtek HD audio drivers
Before installation
After installation
Technology and components
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Содержание Inspiron 3520
Страница 23: ...5 Slide and lift the keyboard away from the computer Disassembly and reassembly 23 ...
Страница 31: ...5 Remove the M2x3 screws and lift the system board away from the computer 1 2 Disassembly and reassembly 31 ...
Страница 40: ...6 Slide the display assembly away from the 40 Disassembly and reassembly ...
