How can you test a Power Supply?

[GuardguyMO]

I have an Option 11 that a contractor is telling me needs to have the power supply swapped out ($200) + 3 hours labor.

The customer onsite stated to the contractor that there was a thunderstorm in the area. There is nothing else to make an assumption that lightning actually struck the building. I find it unlikely that lightning would effect the power supply and one line card.

Questions about power supplies:
If the cabinet is up and running, can the power supply be bad?
If one card is not working, can the power supply be bad?
Can a power supply effect only one card and not the other cards in the cabinet?
Would a power supply out of an 81c (NT6D40AB) work for the power supply out of the Option 11 (NTDK78). I have two spares.

What is the procedures to swap out a power supply? The power supply in question is not in the main cabinet, but the expansion cabinet. This cabinet holds line cards only.

Thanks for any help you can provide.

 

[one234]

Hi,

- Yes
- Yes
- Yes, unlikely but yes.
- Absolute no

3 hours labor???? How much coffee is he going to drink.. They are nuts... Replace a power supply? 10 minutes max... Turn off the power supply. Disconnect 1 maybe 2 cables. Pull out the power supply. Put the new 1 in and reconnect the cables... O and turn it back on of course that will take like 10 seconds... 3 hours... pfff let them explain what they are going to do in the 3 hours...

I assume they did some tests before they came to the conclusion to replace the power supply? Like swapping the cards to see if the problem moves with the card and stuff like that... It could be the power supply, but I haven't seen it that often that the power supply is buggie like this


Marc D.

If Bill Gates had a nickel for every time Windows crashed... Oh wait, he does...