blade2000 boot problem

hi,I have a blade 2000, but today I got a broblem. the system can't boot. when i power on it, after 4 beeps it power off automatically.
[150 byte] By [caomao] at [2007-11-26 10:50:59]
# 1

Hello,

I would recommend to attach to the console port (serial A) using a terminal emulation.

Review the [url=http://www.sun.com/products-n-solutions/hardware/docs/pdf/816-3217-10.pdf] Sun Blade 1000 and Sun Blade 2000 Service Manual[/url] for trouble-shooting procedures.

Michael

MAALATFT at 2007-7-7 3:03:40 > top of Java-index,Sun Hardware,Workstations - General Discussion...