Precision 5550 - OCP fuse 2 fault

Hi Andrea, how did you solve the problem? I have the same exact behavior

thanks! Seth

@andrea.mariscotti​

Hi Andrea,

Your reply is extremely helpful for me and just wonder if you can share any insights on how to reset this OCP fuse.  Thank you in advance!

@Spmaas​ 

Hi Seth,

Also got this problem on my XPS 9510.  Just wonder if you have solved it.  Thanks!

@Reverie-Metherlence in the end the motherboard was replaced to fix it

@Reverie-Metherlence 

My solution was simply to bin the Chinese USB extender.

Then, while studying the thing for a couple of hours, I saw that resetting such fuses can be accomplished through the BIOS: the problem is that not all BIOS versions are the same, and I saw some examples and discussions in the Internet for different DELL models. Of course a factory reset is way too much.

Of course, if the cause of fuse tripping is not removed, you don't see the alarm cleared. It will simply remain there and you even think you were not successful in resetting it.

@andrea.mariscotti​ 

Thank you for your reply and that's really helpful!  I removed any docker but the problem still doesn't go away.  I checked the BIOS but there doesn't seem to have an option to reset fuse alert unfortunately.  Replacing the whole motherboard for a small fuse seems to be an overkill though...

@Spmaas​ omg, do you have XPS or Precision?  May I ask how much it costs... It seems to me that replacing the motherboard to fix a fuse is an overkill though....

@Reverie-Metherlence​ You are right. Just to add a tiny bit of info:

- the error was not immediately the OCP fuse, but a stuck Caps Lock light, frequent reset of the computer (black screen and reboot), serious problems to sharing the clipboard. And the hot top-left area, then after fiddling with all software issues, drove me to the right problem [ hardware is more reliable indeed :) ]

- it took a couple of days to arrive to the conclusion that the USB was not working well; typing something like "hot USB" "excessive current ..." I came across one discussing resettable fuses, and then went to the BIOS. There I saw a warning of an activated fuse (thanking the Almighty & DELL a resettable one). Now it has disappeared, and I cannot recall if there was a kind of reset of the alarms, a toggle, or what.

@andrea.mariscotti​ Thank you for your detailed reply which is super helpful.  I checked the BIOS of XPS but unfortunately it does not give me an option to reset fuse alert...  I guess I have to take it apart and replace the fuse manually though...