Lenovo IdeaPad Y580 Ideapad Y480, Y580 User Guide V1.0 (English) - Page 44

System Memory, during startup. The BIOS setup utility screen opens.

Page 44 highlights

Appendix. CRU instructions To make sure that the DDR3 SDRAM is installed correctly, do as follows: 1 Turn the computer on. 2 Hold F2 during startup. The BIOS setup utility screen opens. The System Memory item shows the total amount of memory installed in your computer. 40

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40
Appendix. CRU instructions
To make sure that the DDR3 SDRAM is installed correctly, do as follows:
1
Turn the computer on.
2
Hold
F2
during startup. The BIOS setup utility screen opens. The
System Memory
item
shows the total amount of memory installed in your computer.