Oracle X7-8 Service Manual page 151

For example, see callout 1.
Use a stylus to press one or both ATTN buttons on the DPCC front.
3.
The ATTN buttons alert the system to a request to remove a PCIe card. When the system has
acknowledged the request, the server takes the device offline and lights indicators for each slot.
When the indicators are lit on fast blink, you can safely remove the component.
If only a single PCIe card is present, press only the corresponding ATTN button. For
Note -
button locations, see
4. To unlock the DPCC lever, lift the release latch and pull the lever downward,
away from the server.
"Dual PCIe Card Carrier (DPCC) Indicators" on page
Remove a DPCC
68.
Servicing Components 151