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Hello, I need schematic for dell 5531? Or if someone can identify PU4501, chip marking "R9E1D" (I dont know where to buy or how to identify part) controller for 3.3v. Motherboard Dell 5531 213002-1.
Unfortunately have an issue with the main power switch which I have traced the issue down to the motherboard! I know it's a long shot as motherboard manuals from Dell are hard to come by. I can turn it on using the bios options when mains power is applied to the PC after the mains power has been removed for a while.
The only markings on the motherboard are CN-0TP406 and underneath 316764300010 LF-PCB; PWA-SAN MARINO/MB_A01,12
However I would like to make it fully operational, with the power turned onto the unit from the front power switch. The wiring is fine, it looks like I am...
Hi All, I have a 9th Gen Dell Optiplex micro PC motherboard which doesn't power on. When I connect the motherboard with power adapter, it goes into safe mode and turns off. So from info I have gathered online, it looks like there is a short circuit on the motherboard. So can you guys help me with figuring out the issue?
I am new to electronics repair, so my queries could be naive but I am ready to learn.
So I have a multimeter and a solder with me. But I can try to get a variable voltage power supply with a thermal camera as well. From what I seen online, best way is...
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