bakunin thank you for your post. here is the detailed procedure for removing HMC through ASMI and the links which you provided are related to How to Access ASMI.

Here is the procedure:

---------- Post updated 11-04-12 at 04:12 AM ---------- Previous update was 11-03-12 at 11:57 PM ----------

I have removed the HMC still nothing appears on the display or any power in the keyboard or mouse when I power on through ASMI.

Any other way to check the Console configuration ?

---------- Post updated at 05:13 AM ---------- Previous update was at 04:12 AM ----------

Update: After Service Processor Reset

Can't access ASMI login page although I can ping HMC port 1 and HMC port 2

So,

1. Removed HMC connection through ASMI

Rebooted the machine, console did not appear

2. Reset the Service Processor through ASMI

Rebooted the machine, console did not appear, neither can access ASMI ( although can ping it )

3. Since I can't access ASMI now , I thought of resetting the through PIN HOLE METHOD. Inserted PIN and hold for 5 seconds , till i saw on the panel dots moving.
Reset the system using the pin-hole button on the front-panel (with no network cables connected).
Still no resolution

4. Did a hard reset :
The Flexible Service Processor {FSP} is built into the System Backplane on a model 550. You can remove the Power Supplies very easily and there is a very very small inconspicuous switch that is covered with a opaque brownish plastic the trick is to carefully peel back the plastic and expose the toggle/rocker switch if you don't do this you will not be able to see clearly and will run the risk of breaking the switch and that is not a good option when attempting to toggle it's position. I have seen it done . This method is free but takes a small amount of effort but faily easy.

Once the switch is toggled to the opposite position on the box everything will be reset to factory settings.

After this reset the IP for ASMI have been resetted to default. But still can't access ASMI through browser.

any solutions ?