Good day. Has anyone encountered the issue of a low DRON signal (2.0 V) from the NCP81215D controller?
All conditions seem to be met — VCC = 5.0 V, EN = 3.3 V, but DRON only rises to 2.0 V, and the DrMOS doesn’t turn on.
What could cause this behavior?
User Profile
Collapse
-
A Dell Latitude G5 5587 Compal LA-E994P r1.0 laptop arrived — it doesn’t start
Hello everyone.
A Dell Latitude G5 5587 Compal LA-E994P r1.0 laptop arrived — it doesn’t start. I flashed the BIOS with a clean ME, and the currents changed. It now reboots cyclically; standby voltages are present, and for a moment the following voltages appear:
+1.35VS_VGAP — resistance 135 Ω
+GPU_CORE — resistance 0.2 Ω
+GPU_CORE_VDDS — resistance 0.2 Ω
I’m attaching the schematic and Boardviewer from a similar LA-E993P board - https://www.badcaps.net/forum/troubl...ets-and-mobile... -
Hello,
I have a DELL G5 5587 (LA-E994P). When power is applied, there is no initialization, and the fans spin at full speed.
I’m attaching a backup of the BIOS.
Serial number: J6VQ9S2....Leave a comment:
-
HP 15-cx0054ur (DPk54 LA-F841P Rev:1A) with a problem
Hello everyone. I received an HP 15-cx0054ur (DPk54 LA-F841P Rev:1A) with a problem - it won't turn on. During the inspection, I found a faulty chip marked 8AAB0G , but I couldn't find any information about it. In the board viewer, it is marked as PUH1 , but I don't have a full schematic. According to the board viewer, this is a power controller that generates +0.95VS_VCCIO . If anyone has an alternative marking for this chip, a partial schematic with it, or any other information, I would be very grateful .
LA-F841P Boardview - https://www.badcaps.net/forum/troubl...-hardware-devi...
No activity results to display
Show More
Leave a comment: