That's what I have: Sun Fire v440 hardware problem (can't get ok>)
Now, I whant to enter as admin in ALOM
I tried to move battery from MB and from ALOM card( without power cable of course) and left if on 6 hourse with the same result.
There is still password on admin(I try serial nuber of card first 8 digit and the last and wtihout password too)
Al I can do is push Esc and see
"ALOM <ESC> Menu

f - Wait for flash download from host.
C - Copy Boot Monitor from FLASHBOAT.
j - Jump to main code (at 0x01010000).
m - Run POST Menu.
(Do not try this after a flash update of the boot monitor!)
d - play DOOM
s - Set clock speed
e - Set external and internal console serial ports baud rate
i - Set internal control serial port baud rate
t - Toggle 'OK' flag
R - Reset SC
b,h,w - Read byte/halfword/word
B,H,W - Write byte/halfword/word
r - Return to bootmon
Your selection: r

ALOM POST 1.0
Status = 00007fff"
I tried all letters and the password still exist for ALOM console
Thank's for reply

Try this sun link for alom passwd recovery

A P P E N D I X A - Troubleshooting

I don't have this kind of Esc menu as in docs
My Esc menu present below
"ALOM <ESC> Menu

f - Wait for flash download from host.
C - Copy Boot Monitor from FLASHBOAT.
j - Jump to main code (at 0x01010000).
m - Run POST Menu.
(Do not try this after a flash update of the boot monitor!)
d - play DOOM
s - Set clock speed
e - Set external and internal console serial ports baud rate
i - Set internal control serial port baud rate
t - Toggle 'OK' flag
R - Reset SC
b,h,w - Read byte/halfword/word
B,H,W - Write byte/halfword/word
r - Return to bootmon

Boot Solaris, become root and do:
/usr/platform/`uname -i`/sbin/scadm userpassword admin
and, at the prompts, set the password to what you want.

That's good) but I don't have preinstalled Solaris and just want to intsall it.
The question is: How can Ireset password in AOLM without preinstalled os?
If it is possible of course

You can boot an installation CD into single user mode to get a root prompt and do it from there.

I had a similar problem once. What I did, I got a second box that had the OS installed and the scadm utility installed, and used that second system to reset the passwords on 10 RSC cards.

Now, you say you have an aLOM "card'... I'm going by memory here, so I may be wrong, but I think you can remove the aLOM card, then connect to the built-in serial port in the v440, and you'll go straight to the ok prompt. Then you can build the server, then re-install the RSC card, then change the passwd through scadm