Shortly after completion of the POST (Power-On-Self-Test sequence of the computer), the user will be prompted to press CTRL-B to invoke FlexBoot User Interface. The user has few seconds to press CTRL-B before the message disappears.
![worddavc62ce186f1172b538198d57134c59f12.png](https://docscontent.nvidia.com/dims4/default/48697c8/2147483647/strip/true/crop/605x58+0+0/resize/605x58!/quality/90/?url=https%3A%2F%2Fk3-prod-nvidia-docs.s3.us-west-2.amazonaws.com%2Fbrightspot%2Fconfluence%2F0000018b-a9f0-da83-afdf-ffff58510000%2Fimages%2Fnetworking%2Fdownload%2Fattachments%2F144706582%2Fworddavc62ce186f1172b538198d57134c59f12.png)
To browse the menu, use the following keys:
Key | Operation |
Arrows ↑↓ | Browse options (Highlighted option is current) |
Enter | On forms – to enter menu On configurable settings – to edit configuration |
Esc | Exit current menu |
To enter the required menu, press Enter while the option is highlighted.
![worddav5c9b4e47320aee6ce80bb360500869b9.png](https://docscontent.nvidia.com/dims4/default/091ea5c/2147483647/strip/true/crop/717x390+0+0/resize/717x390!/quality/90/?url=https%3A%2F%2Fk3-prod-nvidia-docs.s3.us-west-2.amazonaws.com%2Fbrightspot%2Fconfluence%2F0000018b-a9f0-da83-afdf-ffff58510000%2Fimages%2Fnetworking%2Fdownload%2Fattachments%2F144706582%2Fworddav5c9b4e47320aee6ce80bb360500869b9.png)
For further information on FlexBoot varies menus, and the configuration options they provide, please refer to section Configuring System Settings and its subsections.