Hi all,
Just a quick update — this request is no longer актуal.
I had to return the machine to the owner, so I can’t continue troubleshooting on it.
Thanks to everyone who took a look.
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Hi all,
Got this Dell Precision 7670 on the bench:
Board: HDC50 LA-L882P Rev 1.0
S/N: 25TVSQ3
Symptom:
When plugging in the charger, the LED flashes once and then goes off. No power, no POST.
What I checked so far:- Board inspected under microscope, no visible damage
- No schematic available for this board
- No shorts found on main rails
- 3.3V and 5V rails are present
- On plug-in, 5V comes up briefly, but drops when the board attempts to start
There’s a chance it was interrupted during a BIOS update, but I can’t confirm... -
Thank you very much for your help and for providing the BIOS.
I programmed only the main BIOS and the laptop is now working perfectly. All identifiers (serial number, etc.) remained intact.
I really appreciate your help....Leave a comment:
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Thank you for your work and for preparing the BIOS.
Unfortunately it did not solve the problem. I tested all the BIOS files from the thread and also tried the RAM removal script provided by moderator SMDFlea, but the behaviour is still the same.
At this point I am starting to suspect that the integrated CPU may be faulty.
Thank you again for your help and for taking the time to prepare the BIOS....Leave a comment:
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Helló,
Hello,
I need help with a laptop that does not POST.
Model: ASUS VivoBook S513EA
Board: X513EA R5.3
S/N: MBN0CV17X51546C
BIOS chip: Gigadevice GD25B127DSIG (16MB)
EC: NPCE68AAA0BX
Symptoms:- Laptop auto powers on when AC adapter is connected (battery removed)
- Current consumption rises to about ~1A and stays there
- CPU and VCORE inductors start heating
- CPU VCORE VRM area heats up quickly
- No display and no POST
- No USB activity
- Fan starts only when the heatsink becomes hot
Diagnostics already done:- All
Leave a comment:
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Re: mbx-272 bios
Hi.
Thank you for the dump. it works on ""SVE1112M1EW" notebook. The BIOS IC is "W25Q32BVSIG".
So thank you again....Leave a comment:
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