Hi Guys,
Got a weird one here. I have a HP OMEN 16-WF0032TX that's in my shop for no power. If I disconnect the battery, and the AC adapter and hold the power-on button on the keyboard, when I connect the adapter the laptop powers on. If I shutdown and close the lid, once I re-open the lid and press the power button, no power. If I shutdown and keep the lid open, when I press the button the laptop powers on.
I have checked around the display connector if I can see anything that doesn't look right, its like an issue with the lid sensor. Has anyone seen this before?...
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HP OMEN 16-WF0032TX NO Power unless the button is held and AC adapter connected
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S3 Graphics LS3440 - Analogue not working on both DVI-I ports
Hi Guys,
Weird one here. I have a special GPU made by DFI (Model LS3440) from an Arcade gaming machine. The GPU uses the S3 440 GTX Chipset, and has dual DVI-I ports. For some reason, the analogue has stopped working on both outputs (DVI-I to VGA cable). DVI-D and digital outputs work fine, just the analogue that has stopped working.
Now, I could get around this by using Active cables to convert the signal over to Digital, but its got me wondering exactly what the issue could be. I have inspected the GPU and DVI ports under my microscope, but nothing stands out. Because...
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Lenovo V15 G3 No Backlight after liquid damage
Good morning guys,
I have a Lenovo V15 G3 that came in with liquid damage. The damage was very minor and some corrosion on the IO board where the power switch was. After cleaning both the motherboard and IO board in alcohol, the laptop turned on and I had backlight for about 3 seconds but nothing further. I don't have a boardview for this laptop (Have requested this in the Schematic Request section), however from previous experience on Lenovo laptops I have checked pins 1, 2, 3 on the EDP connector. When the battery is connected only, I get 8V and when AC adapter is connected, I get...
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BoardView and Schematic for Lenovo V15 G3 ABA
Good evening,
I am looking for a board view / schematic file for a Lenovo V15 G3 ABA. The motherboard part number is JV472/JV572 NM-E551 Rev 1.0
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James
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Re: NO POST Nightmare - DFI G7L330-B Industrial Motherboard Socket 775
Thanks for the reply. The board does not beep with or without memory populated. I have an identical working board, and the BIOS chip is not soldered so I can swap the chips easily between the boards, and it works fine on my working board.
The PCI card also works fine on my test board....
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NO POST Nightmare - DFI G7L330-B Industrial Motherboard Socket 775
Hi Guys,
Newbie here to board repair so bare with me. I have a bunch of Socket 775 motherboards from arcade gaming machines. The brand is DFI, and it's their industrial motherboard range model number G7L330-B
All boards have the same issue, no POST. I've re-capped the boards completely, can't see any shorts across the 12V rail and I've removed all MOSFETS from the board to test them. The boards have been ultrasonic cleaned as well as an alcohol bath, doesn't seem to have made a difference
BIOS is also correct, I do have a working board for reference...
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Re: HP ProDesk 400 G6 Desktop Mini PC BIOS Password Help
Thank you so much sir, this worked a treat! May I ask for future as a learning curve, what do I need to do with RCUnlocker in order for it to recognise a file larger than 16MB?...
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Re: HP ProDesk 400 G6 Desktop Mini PC BIOS Password Help
I did indeed, I shorted for 10 seconds with the Power Off, and also with the Power On as well as trying CMOS reset after, password still remains....
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Re: HP ProDesk 400 G6 Desktop Mini PC BIOS Password Help
Attached the DUMP from NeoProgrammer...
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HP ProDesk 400 G6 Desktop Mini PC BIOS Password Help
Hi Guys,
Newbie here so I apologise if I have missed the obvious. I have a HP ProDesk 400 G6 Desktop Mini PC in for repair where the owner has purchased second hand with a BIOS Password enabled. SN: 8CC12804BP
I have a TL866II Plus and CH341a programmer, I have not used RCUnlocker before and I am looking to learn. I am a bit confused because there is only 1 chip on the board (GigaDevice GD25B256D) which is a SOP16 chip. I am trying to read the chip using both NeoProgrammer and Xgpro, but I can't seem...
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