Intel SR4850HW4 - Server Platform - 0 MB RAM Product Manual page 228

Technical Reference
6. You will see the System Options Menu shown below.
7. Use the down arrow key to select "Boot Manager". Press <Enter>.
8. Review the Boot Option Menu for the list of boot devices.
In the example below, both the USB floppy disk drive and the USB flash memory device are
detected. These are the TEAC* FD-05PUB 1026 and the IOMEGA*
Mini128MB+IOM2B52.00.
If the devices are not detected, see
228
"Troubleshooting a USB Flash Memory
Intel® Server Platforms SR4850HW4 & SR4850HW4/M Product Guide
Device".