How can I easily determine SoC or processor shorted laptop, when there is no power or display it is completely dead? Board is BM5387 Rev 1.2. Two of the coils near battery connector is shorted, one side 000 and other side 012 readings. Capacitors in that area also shorted similarly.
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Re: How to determine SoC or processor short BM5387 Rev 1.2?
The two left coils are short. I have 19v up to the cap next to the first coil on the right. No 19v. on the coil all other coils have no output. The group of caps and area around the two coils is shorted to ground. -
Re: How to determine SoC or processor short BM5387 Rev 1.2?
Check resistance to ground on pin8 of bios chip. Findout the two coils are connected to which line.Comment
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(If anyone has a functional boardview file of FX505DV/DU that would be helpful)
(Had 3 problems, now just 1)
I have no experience or knowledge and usage of tools to repair devices besides the entire past 12-10 days of researching, watching YouTube repair videos and troubleshooting this laptop motherboard. ChatGPT was used as a guide to ask questions.
I used boardviews of mostly FX505GD-M, and some FX505DU, FX505DD. Used schematics of FX505DU.
I had originally intended to replace the BQ24780s first (due to previous battery removal while benchmarking) but I... -
Hi Folks
I'm looking for a extreme high current short killer solution for a reasonable cost.
I have an LGA1700 motherboard (ASUS PRIME Z790-P WiFi) where I exchanged the LGA socket already 3 times, and every time after the socket exchange I get a short of power supply lines VCORE (V variable) and VCCIN_AUX (1.8V).
After taking off the socket, the shorts dissappear again.
The soldermask on the socket is already partially demaged from the heat, so I have reconstructed the soldermask by manually painting the missing soldermask parts with a very small top of a...10-15-2024, 10:13 AM -
Hello everyone,
so, I have this laptop Dell Inspiron N5110 with a heating problem on both CPU (I7-2680qm) and GPU (GT 525m), I tried many solutions, like changing thermal paste every month, using thermal pads on CPU and GPU, even using thermal pads on CPU nearby coils; but nothing worked, just minutes after booting the laptop shuts itself down so I thought it might be a short problem, so I decided to check what's going on, so I went online and some tutorial (general one) said to check inductors in order to find the shorted circuit, after checking (CPU removed), I found the culprit to be... -
Previous owner says this unit powers on and sometime has an image and sometimes not. They attempted to replace the main board but with no success.
TV came with the replacement mainboard as well as the original.
When the TV turns on there is no image or sound. No response to the remote or toggle button other than the power button. The power supply's relay was clipping here and there. It did that for several seconds even after I removed the mains. I did this even with no other boards connected (only the backlight was connected at the time). Backlight looks fine but... -
Hey guys,
ive got a laptop here with a very strange fault.
As the title says the Laptop turns on Power Button lights up as well as the keyboard but no picture.
At first i thought it was a bios issue or a ram issue but the fans are not spinning either (or is this normal?).
I checked the board and found that vcore 1 from the CPU is good and the other vcore with the two coils has 0.6 ohms to gnd. I found that strange because if the vcore got shorted like from a mosfet it wont have a working Main Power rail.
Now the Question is: Is the 0.6 ohms normal?
...03-12-2025, 02:17 PM
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