Hi,
While the BIOS is the latest (02.02.0005), alright, the fact the chassis fan speed is still noisy may indicate any of the following:
1. The firmware on the board is either not updated, yet, or its update did not go quite well. Hence, please, proceed as follows:
1.1. Clear the System Event Log and load up the BIOS default settings:
1.1.1. Boot into BIOS.
1.1.2. Once in BIOS, hit the F9 key to load up the BIOS default settings.
1.1.3. Go into the Server Management tab and enable the "Clear System Event Log" option.
Note: Reset any customized BIOS settings before continuing.
1.1.4. Hit the F10 to save the changes and exit.
2. See to it that the chassis lid is properly closed.
3. Ensure the firmware is up to date, as well, in accordance with the 02.02.0005 BIOS version:
You can verify this from within the "Server Management/System Information" BIOS section.
Please, find the latest BIOS/firmware package here should you need to re-run it.