How to manage bios remotely on sr1630gp?

Question

SSH

There is an Intel sr1630gp server after the next reboot stopped loading. Bios beeps, the intel logo loads and that's it. When I try to enter the BIOS, it does not respond. USB key. If you turn it over, then a short squeak and that's it. Number, Caps lights won't turn on. If you leave it in this state, then after 15 minutes it reboots and everything again. I tried the jumper and reset the bios, took out the battery. Nothing helps. If you connect a network wire, then it takes ip. When it is enabled, ssh responds to its ip. But I can’t enter, because I don't know the default username and password.
QUESTION, how can I remotely connect to the BIOS and check its parameters, select boot from cd-rom and flash the BIOS. What is the default login and password and how to connect?
By ssh, if I log in as root, root says the wrong password, if root superuser immediately throws it out