Does it say Intel Confidential on it? and ES after the SLAYX?
Normally ES chips have a Qnnnn ID.
SLAYX is the correct code for the T9500
There isn't a retail pack for the T9500, so you wouldn't ever get the retail packaging.
I don't remember if it said Intel Confidential on it. No, it didn't have ES anywhere on it. It's already installed, so I can't read the top unless I completely tear the laptop down. I know for sure that is had 'SLAYX' on the top, though.
I'm not sure if you'll be able to get to the bottom of it. If it's performing well then I wouldn't worry about it.
Sorry I can't be of much help.
Yes, it has been working fine. The fan seems to run alot more than with the T5550. Thanks again.