Hi edwardzh
First of all, thanks so much for answer.
The processors I don´t know the model exactly but they are Xeon match pair (they come with the motherboard)
Well. The model of the memories is:
DDR2 667 MHZ FB-DIMMM
4 modules of 2 GB each other
What is the PBA of my board? How can I check it?
If you see, http://download.intel.com/support/motherboards/server/sb/d36217006_s5000psl_userguide.pdf
on page 9, the leds are in the order I told, but in the page 12 change.
I tell you as appear on page 12:
MSB LED : off
Bit 2 LED: off
Bit 1 LED: red
LSB LED: green
The NIC led are green too.
+5-volt standby LED also appeared on green.
Status Led green too
I don´t have more leds lighting..
Thanks so much and i wait your help 
Have a nice day