2960X-48TS-L hangs at Testing Memory

[Oliver.Gao36]

Hi all,
I was facing an issue after 2960X switch upgrading IOS to a higher version, after rebooting.
my switch always hangs at

CPU rev: B
Image passed digital signature verification
Board rev: 5
Testing DataBus...
Testing AddressBus...
Testing Memory from 0x00000000 to 0x1fffffff...| S

can someone help to give me solution?

[Leo Laohoo]

Try performing a hard reboot (pull the power cable).
If things don't improve, contact TAC and organize for an RMA.

[Oliver.Gao36]

i tried. but looks that this cannot solve the issue. seems i will have to open a TAC support.

[tranhuy710010676]

I have same problem with you. Are you have solution for this 

[balaji.bandi]

what was the version it was running before..looks like you hitting with Memory Bug, time for RMA.

[Oliver.Gao36]

previous running IOS version was 15.2.5E, running under bundled mode.

i just downloaded 15.2.7 via TFTP, and set boot system with this version, then performed reloading.

after that, the switch always hangs at testing memory, so unlucky....

[balaji.bandi]

Another bad day..time for RMA if you have contract.

[saloaun18]

hi mate, did u resolve this issue? i have the same problem

[balaji.bandi]

Raise TAC case and RMA

[ckelly]

Same here with 15.2.7E1, new release.  Bricked two so far, not loading another.  These are new out of box, updating to latest release per Cisco.  Going back to 15.2-7.E0a

[Leo Laohoo]

Console into the switch and reboot.
Post the entire boot-up process (with the new firmware) so we can see what the switch is doing.

[ckelly]

Whats to post - it hangs at the 5th line displayed Testing Memory....  There is no "boot process".  It also won't respond to attempts to boot into ROMON.

Of the 7 NIB 2960X-48TD-L received yesterday - one failed on update, two others are BOOT FAIL out of the box and those also won't respond to any attempt to access ROMON.  DOA.  

I will add that I'm loading 15.2.7.E0a on these and after the update they are coming up BOOT FAIL.  However, after a power cycle, they are booting normally on the new IOS.  The ones that work, anyway.  

[ckelly]

In response to the boot query

CPU rev: B
Image passed digital signature verification
Board rev: 5
Testing DataBus...
Testing AddressBus...
Testing Memory from 0x00000000 to 0x1fffffff.../ <---done here

[balaji.bandi]

just to understand is this new device ? or upgraded IOS ?

[Leo Laohoo]

Stupid question: Have you tried pulling the power (and not the "reload" command)?