How can we determine if the system board in a platform has had the 
modifications for the 400 MHz processors, i.e. 2761, or is still
an original i.e. 2760 ? This is useful if a customer wishes to upgrade
to the 400 MHz processors and needs to determine which system boards
still need to have the modifications made to handle the faster speeds.

There is a command available on the SSP to do this so as we don't 
have to physically remove the system board to look at the part
number. However EXTREME CAUTION must be taken as this command 
is for use by Sun Manufacturing  personnel normally.

The command is 'board_id'. Run 'board_id' on the main ssp. If you run 
it on the spare ssp, it will not be able to get platform information.

Here is a sample output from running this on our internal E10000 :


The following is for a 2761 system board:

	s4m-sspa:s10k-a% board_id -r -b sb -n 1

	Assembly Part Number 501-5279-01 Rev 50    Serial Number 28B030191

	Programmed on Tue Nov  3 23:06:40 1998
	
2761 part numbers are 501-5240, 501-5278 or 501-5279.


The following is for the 2760 system board  :

	esteban:grissom% board_id -r -b sb -n 0

	Assembly Part Number 501-4347-09 Rev 50    Serial Number 28Q761846

	Programmed on Wed Jun 18 08:40:22 1997

2760 part numbers are 501-4903, 501-4786 or 501-4347.


The part number differences will help you decipher if the modifications 
have been made. As mentioned, caution must be exercised as it is possible
to change the part number and serial number of the board with this command.

An alternative method is to use the redx command on the main ssp as follows :

	# redx -c

	redx> eepr sys 3

	Serial number eeprom of system board 3:
	Assembly Part Number 501-5279-01 Rev 50    Serial Number 28B030855
	Programmed on Tue Nov  3 23:50:24 1998

This part number indicates that the board is a 2761 model. Once again
caution needs to be exercised as running redx on alive domain can cause
the domain to crash if certain commands are run.