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February 2nd, 2025 23:03
XPS 9510 - OCP fuse 2 fault
XPS 9510 - OCP fuse 2 fault
Hi all, I have flashing LED error 1 amber 4 white that is not documented in the service manual (not good).
BIOS says that yesterday an event was logged: "OCP fuse 2 fault" (OCP is overcurrent protection).
No information again in the service manual nor specifically googling for it.
This OCP fuse 2 seems to refer to the fuse to protect USB Type-C port.
If it helps there is also CAPS LOCK LED stuck on, but Caps Lock works although stuck lit up.
Thanks in advance!
No Events found!
ejn63
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February 2nd, 2025 23:45
Overcurrent protection means there's a short circuit on the mainboard. It could be the USB port itself (or another one), or it could be a bad capacitor or inductor somewhere on the board. The only sure repair is a replacement mainboard -- otherwise, you'll need to find the short circuit and replace the faulty component(s), and hope that the short didn't drive enough voltage through the CPU or GPU to destroy it.
Reverie-Metherlence
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February 3rd, 2025 01:39
@ejn63 Thank you for your input! Replacing the mainboard for only one faulty capacitor or inductor seems not to be a good idea as it costs $$$$. I am surprised by its quality because I just bought it only 2.5 years ago.
ejn63
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February 3rd, 2025 02:17
If you have a microscope and the tools to do the diagnosis and repair, it may be a path forward. If you don't, the labor cost alone will be a sizable portion of the cost of a board, without any guarantee of success. The cost of the parts may be low, but there's no guarantee that replacing them will solve the problem. Proceed so advised.