2960X stack adding sfp, but hardware not present.

[jasonmeyer]

I have 2 2960Xs in a stack. One switch has a pair of 1GB sfps up and working normally. I need to add another sfp to the second switch, but when I insert the sfp and do a show int is shows hardware not present, goes for both ports. Doing shut/no shut on the port(s) doesn't change a thing. I can't find much other than reloading the switch to get it to recognize the sfp. I've never had this happen before. Stack is running older code, 15.0(2)EX5.Switching

[Flavio Miranda]

Hi

 Are using a supported Cisco SFP? usually, as you mentioned, no reload is required.

[jasonmeyer]

Yes, I am using supported sfps.

[Leo Laohoo]

What is the exact model of the optics?

[jasonmeyer]

GLC-SX-MMO

[Leo Laohoo]

That type of optic should work. 
When the optics was inserted, what did the logs say?

[jasonmeyer]

Nothing in the sh log.

[Georg Pauwen]

Hello,

what is GLC-SX-MMO ? You mean GLC-SX-MMD ? Can you post a picture of the SFP ?

[jasonmeyer]

Yes, MMD.

[paul driver]

Hello
conf t
service unsupported-transceiver
exit
show interface x/x transceiver properties detail
show interface transceiver supported-list