ThinkSystem 2U E/x16/x16 PCIe G4 Riser 1/2 option kit
This topic provides important information about ThinkSystem 2U E/x16/x16 PCIe G4 Riser 1/2 option kit. The 
option package contains the following item:
For information about installing the option product, refer to the Server hardware setup chapter in the Setup 
Guide, or go to: 
https://thinksystem.lenovofiles.com/help/topic/7D2W/server_setup.html.
To get the latest technical information and download device drivers and updates, go to:  
https://datacentersupport.lenovo.com/us/en/products/servers/thinksystem/sr665/7d2w/downloads/driver-list.
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ThinkSystem SR665 System Option Manual