Lenovo H420 Desktop - Manual (Page 33)

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Hardware Replacement Guide
Replacing a PCI or AGP adapter
Attention:
Do not remove the computer cover or attempt any repair before reading the
“Important safety information” in the Safety and Warranty Guide that was
included with your computer or in the Hardware Maintenance Manual (HMM)
for the computer. To obtain copies of the Safety and Warranty Guide or
HMM, go to the Support Web site at: http://consumersupport.lenovo.com.
To replace an adapter:
1. Remove the computer cover. Refer to “Removing the computer cover”.
2. Remove the screw that secures the latch to the chassis, open the adapter
latch and remove the adapter by pulling it straight out of the adapter
connector.