Dell 3521(la9104p).its giving 7 beeps.thats means cpu core supply is not generation.i have changes isl95833 than also same problem.plz help
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Re: Dell 3521 LA9104p.cpu failure
Either PCH or cpu is bad -
Re: Dell 3521 LA9104p.cpu failure
THanks but problem solved.it was not pch or cpu.1.2k resistor open.it took lots of time to find outComment
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Re: Dell 3521 LA9104p.cpu failure
Can you upload and show the image of tje resistor please?thanksComment
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Re: Dell 3521 LA9104p.cpu failure
dell 3521 la9104p laptop not charging, charging ic good. 2 second detect charging after descended charging, lap working power adapter & battery. how to fix charging problem
plz help meComment
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My question pertains to understanding the control circuity inside a Dell PT434 type battery used in Dell E6400, E6410 and other Dell notebooks?
Does anyone have a circuit diagram for the inside of a Dell PT434 battery and/or a description of how the control lines work to control this battery?
My reason for asking is I have a battery which I cannot get to charge beyond 1% in a Dell E6410 or E6400.
The LED bar graph charge indicator on the battery shows one LED lighted when the info button is pressed.
I have tried multiple different Dell power adapters. My Dell... -
I have this laptop a dell XPS 13 9310
Power on is ok, stuck at dell logo flashing 2 amber and 4 white (link dell service manual) 2,4 Memory or RAM (Random-Access Memory) failure
I believe this is the spec from using micron tool to decode marking
Images of the ram
I am thinking to replace but wondering if there is a possibility to test while in circuit to find the faulty module? I am doubting there is any reasonable test possible while in circuit as most ram ICs I have tested previously, I have done while off board / removed.
Another...11-24-2024, 09:06 AM -
Dell Inspiron 3521 15" Laptop Schematic & Board View...
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I have a Dell gaming laptop here with a blink code of 3 red, 5 blue (power rail failure). 3V and 5V are present, but 1.8V is missing. I looked at PU1801 according to the schematic, and it's not receiving an enable signal. Any ideas where to check next? I think that signal comes from the PCH.
No obvious shorts under thermal (or probed), damaged components, liquid, etc.
Board: LA-K472P
Link to post with schematic -
I would like to share my experience about charging issues with Dell power supplies with the tech community. I am working on a Dell Inspiron 5590, Mainboard 18778-1 with charging problems. The device can be switched on and works so far, only the message appears at startup:
Alert! The AC power adapter wattage and Type cannot be determined. The battery may not change. The System will adjust the performace to match the power available.
The power supply unit is not recognized in the Bios and the charging process is set to "idle". I use original Dell battery, type...
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