Hi.
Update:
Laptop is up and running after installing new bios chip.
Thank you for help !
-
Hi, i cleaned the board and checked the traces add some solder mask, missing parts are on the board now - according to locations and values from pictures, skipped RT1136 and RH133 since both of them are 0 ohm and on MB the traces are bridged.
There is one more issue now, it turn out the UH8 (bios) didn't survive and its not responding any more, i already found the bios file, unfortunately i don't have 25q256 around so i need to order it.
I'll keep you updated, thank you for your support.Attached FilesPremium supporters get full download access and other benefits.
Leave a comment:
-
-
Hi.
1) Suggest to flux and clean up the left side of the bios @ UH8. From the posted angle, there is an appearance of a few shorts. Each contact must be a clean soldered connection to the main logic board.
See here as an example:
https://www.badcaps.net/forum/troubl...ahp9-bios-chip
Note that each of the 4 solder points are clean.
2) See attached.
Last edited by mon2; 01-25-2025, 04:00 PM.Leave a comment:
-
-
This specification for the DELL Precision 5540 Mobile workstation can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the 5540 boardview and 5540 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for DELL Precision...09-06-2024, 02:30 PM
-
This specification for the DELL Precision 5540 Mobile workstation can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the 5540 boardview and 5540 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for DELL Precision...09-06-2024, 12:08 PM
-
This specification for the DELL Precision 5540 Mobile workstation can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the 5540 boardview and 5540 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for DELL Precision...09-06-2024, 03:21 PM
-
This specification for the DELL Precision 5540 Mobile workstation can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the 5540 boardview and 5540 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for DELL Precision...09-06-2024, 03:21 PM
-
This specification for the DELL Precision 5540 Mobile workstation can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the 5540 boardview and 5540 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for DELL Precision...09-06-2024, 03:21 PM
Leave a comment: