• Standalone Server: If the server is used in standalone mode, this BIOS setting is enabled by default:
Advanced > PCI Configuration > Memory Mapped I/O Above 4 GB [Enabled]
If you need to change this setting, enter the BIOS Setup Utility by pressing F2 when prompted during
bootup.
• If the server is integrated with Cisco UCS Manager and is controlled by a service profile, this setting is
enabled by default in the service profile when a GPU is present.
To change this setting manually, use the following procedure.
Step 1 Refer to the Cisco UCS Manager configuration guide (GUI or CLI) for your release for instructions on configuring service
profiles:
Cisco UCS Manager Configuration Guides
Step 2 Refer to the chapter on Configuring Server-Related Policies > Configuring BIOS Settings.
Step 3 In the section of your profile for PCI Configuration BIOS Settings, set Memory Mapped IO Above 4GB Config to one of
the following:
• Disabled—Does not map 64-bit PCI devices to 64 GB or greater address space.
• Enabled—Maps I/O of 64-bit PCI devices to 64 GB or greater address space.
• Platform Default—The policy uses the value for this attribute contained in the BIOS defaults for the server. Use
this only if you know that the server BIOS is set to use the default enabled setting for this item.
Step 4 Reboot the server.
Cisco UCS Manager pushes BIOS configuration changes through a BIOS policy or default BIOS settings to
the Cisco Integrated Management Controller (CIMC) buffer. These changes remain in the buffer and do not
take effect until the server is rebooted.
Note
Replacing a Single-Wide GPU Card
Step 1 Remove an existing GPU card from the PCIe riser:
a) Shut down and remove power from the server as described in Shutting Down and Removing Power From the Server,
on page 29.
b) Slide the server out the front of the rack far enough so that you can remove the top cover. You might have to detach
cables from the rear panel to provide clearance.
If you cannot safely view and access the component, remove the server from the rack.
Caution
c) Remove the top cover from the server as described in Removing the Server Top Cover, on page 30.
d) Use two hands to grasp the external riser handle and the blue area at the front of the riser.
e) Lift straight up to disengage the riser's connectors from the two sockets on the motherboard. Set the riser upside-down
on an antistatic surface.
Cisco APIC M3/L3 Server Installation and Service Guide
116
GPU Card Installation
Replacing a Single-Wide GPU Card
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