Acer Aspire X1420G Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 43

Gently pull up the expansion board to remove it from the mainboard.

Page 43 highlights

3. Remove the screw from the expansion board bracket opposite the PCI_1 slot. 4. Gently pull up the expansion board to remove it from the mainboard. Aspire AX1400 Service Guide 35

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