i have this macbook with boot problem like beep during os loading , i have the dump .
i want to program a new ic , i need new file with righ serial number
i want to program a new ic , i need new file with righ serial number
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Hi Folks,
Just wanted to clear up a misunderstanding of mine (or what I expect is one). Isn't the 12V rail from the 24 pin, EPS and PCIE separated? IE if I put a power resistor on the ATX 12V pin that is not going to load, thus tell me if the EPS or PCIE rails are fine?
I was recently watching ArIs from Hardware Busters video on how to properly test ATX PSUs without using 5 figure Croma substations.
The PCB adapter he used breaks out the 12, 5 and 3.3V pins from the 24 pin and gives you banana plugs to connect to. That is a bit useless is it not? Aren't... -
The motherboard does not POST and has the following symptoms:
When the power button is pressed, the fans and RGB turns on.
When the power button is pressed, the motherboard voltages 12, 5, and 3 are connected.
The motherboard does not beep.
None of the diagnostic LEDs light up.
USB voltage is off.
VCORE voltage is off.
The BIOS software was downloaded from Asus site and installed using the Q FLASH button, but it made no difference.
I would appreciate it if anyone could guide me on the cause of the problem.
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Hi everyone,
Brought a non functionnal PS5. Apparently only a bad PSU...
No beep, nothing.
After some tests i found this :
- PSU is fine (12 volts stable)
- 12 volts line is shorted
- DA9065 was fried, F7003 also => Replaced both of them, short is gone on 12 volts line, no dead short anywhere else.
- By the way, nothing change. No signal, no power, no beep.
Mesuring all rails with my workbench psu (12 volts input)
- 0.00 amp drawing
- 12 volts, 5 volts, 2 volts, 1,15 volts are presents (suppose new DA9065 do is... -
hello. i've a ps5 edm-033 mobo w/ no power, lights, but one beep when power pressed. i've hooked to uArt and only error code is 80871001 (DDR4 No Power or Short Circuit). i have a donor board, same model, that does power up, fan spins, blue light, and beeps 3 times, then powers off. it has a botched HDMI port replacement job. so w/ the board i'm interested in, with the error 80871001, i was able to research and obtain voltages of the SSD PMIC. i've attached pictures of the provided diagram by DylanBBK (@d62 on Discord) and my voltages and picture of my board. my question is on my picture... -
The laptop Dell Latitude E5520 oes not turn off - OS is loading.
I reflashed the BIOS; I removed the HDD, Wi-Fi module, DVD drive - I booted from a flash drive, sent the shutdown command - it turns off for a couple of seconds and turns on again! Maybe someone knows what to do?07-17-2025, 08:18 AM
