Setting the BIOS Password
1.Restart the RH2288 V2.
2.When the screen shown in Figure 1 is displayed, press Delete as prompted. The BIOS configuration screen is displayed.
NOTE: As the message is displayed for a short time, you are advised to press and hold down Delete during startup until the BIOS setting screen is displayed.
Figure 1 BIOS startup screen

3.Select the Security tab.
The Security screen is displayed, as shown in Figure 2.
Figure 2 Security

4.Select Set Supervisor Password, and press Enter. Set a password for the supervisor, as shown in Figure 3.
Before changing the supervisor password, you need to enter the current supervisor password. The server will be locked after three consecutive failures with wrong passwords. Restart the server to unlock it.
When Supervisor Password Installed shown in Figure 4 is displayed, the password is successfully set.
NOTE: The supervisor password must meet the following requirements:•The password must be a string of 8 to 16 characters and contain special characters (including spaces) and at least two types of the following characters: uppercase letters, lowercase letters, and digits.
•The new password cannot be one of the previous five passwords.
•You are advised to change the default password upon the first startup and change the password periodically to ensure system security.
Figure 3 Set Supervisor Password

Figure 4 Supervisor Password Installed

5.Press F10.
The Exit Saving changes dialog box is displayed.
6.Select Yes to save the settings.
if you want to know more details please login this link :http://support.huawei.com/hedex/hdx.do?docid=EDOC1000010818&id=rh2285_user_0083_4&text=Setting%252520the%252520BIOS%252520Password&lang=en