Cisco 3750-x won't power up

[birukgetachew]

Hi guys,

I recently bought a bunch of cisco 3750-x switches. I configured them all and started deploying them. A day later, some of the switches started failing on me. When I connect the power cord to the AC main, the power supply module on the back shows "AC OK" LED Green but the "PS OK" LED shows Red. I started referring to the installation guide and it told me that "PS OK" LED turns RED when output has failed. Guessing this I checked with another power supply module that was working, but still I get the same LED indicators.

The original power supply module works with other switches. What could be the problem? IOS crash...?

[Leo Laohoo]

What happens when you console into the switch?  What output do you get?

[birukgetachew]

There is no console output via a serial port. Its just dead.

[Lee Watkins]

we've had a few 3750X switches expoerience this same issue.  if i find anything online i'll post it here, but so far not much.

[Leo Laohoo]

Check the PS at the back, is there a light?  If there's no light, then you need to RMA the PS as it could be faulty.

If there's a light on the PS, then you need to RMA the switch. 

[dynamitec1]

Just what leo had said.

Sent from Cisco Technical Support iPhone App

[manolotanzi]

I have

the same problem with 6 devices.

Did you found any solution?

[hhao]

me too, the same situation, the same LED shows.

cisco WS-C3750X-12S is dead。I change a new power supply, It is still dead.