judamex
Active Member
Last Activity: 03-02-2026, 06:35 PM
Joined: 01-27-2021
Location: Mexico
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any help? -
not works still block...Leave a comment:
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HP Elite mt645 G8 Bios unlock request
Can someone help me unlock this BIOS?
Serial Number : 5CD5152N2V
Product Number : BF7R3EC
Description : HP Elite mt645 G8
MainBoard: dax8vpmb8e0 rev:e... -
Help with the value of 2 resistors for the 6050a3551101-mb-a01 board
Hello, this motherboard was water damaged in this area. I repaired the broken trace, but it seems the resistors are damaged. However, there is no boardview or schematic for this board model, so I'm not sure what their values are.
Does anyone know the value of that pair of resistors?
Motherboard... -
SY8386BRHC...Leave a comment:
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Did anyone find a solution for this?Leave a comment:
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Sorry, I didn't realize there was more than one ic in the photo....
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Can someone help me identify this IC? motherboard dah98ambad0 hiawei matebook D15Leave a comment:
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Today I decided to put everything together and give up on this laptop, simply using it without a dGPU, which led me to install all its drivers and clean Windows, but I realized something very peculiar, I can't adjust the brightness on the screen and the HDMI is not detected for any reason. I've heard of a fault in these computers, the famous MUX, I don't know if this has to send a signal to the PC and activate the GPU.
...Leave a comment:
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Today I decided to put everything back together and run tests with Nvidia mats/mods since I was seeing that in the 12th generation onwards for some reason the graphics stop being detected due to memory failures, so I decided to run a test and this is the result.
The GPU is not detected by these tests, which means that the problem could be due to a lack of voltage or some other unknown fault. I hope this can complement my post....Leave a comment:
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The above reading is with the UG6 removed and the resistor in place. The measurement is 0.835 in diode mode.
The readings on UG7 are:
pin1: 2.7V
pin2: 3.4V
pin3: GND
pin4: 1.8V
pin5: 1.8V
Readings on UG6:
pin1: 0V
pin2: 3.3V
pin3: GND
pin4: 0V
pin5: 1.8V
Reading on pin 1 without the 100k pull-down resistor and UG6
Red Pex_rst#. Black Ground: 77k
Diode mode
Red Ground, Black Pex_rst#: 0.832
reading pin 1 without resistance and with UG6 connected
Red Pex_rst#,...Leave a comment:
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What would happen if I bridge 1.8V_aon to pex_rst#?...Leave a comment:
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For some reason, when I touched pin 4 of the PQ8202 MOSFET, it gave me pin 1, 2, and 3 readings for the PQ8200 and PQ8201 MOSFETs. When I removed it and applied power to the board, ACDRV magically appeared. The MOSFET on the outside gave me good readings. But just in case, I replaced it with an identical AONR32314, and everything works perfectly now.
I really appreciate your help, and with that, I'll close this post....Leave a comment:
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The resistance between "acn" and GND: 15.5K.
The voltage at the following points is:
acok: 2.88V
regn: 6.07V
vcc: 19.32V
cmsrc: 0.015V
acdet: 2.7v...Leave a comment:
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I changed them again, now I put the first resistor as 430k and the second with 75k, getting 2.71V but still nothing happens, there is no LED and there is no ACDRV, nor ACP or ACNLeave a comment:
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I changed both resistors to 470k and 75k respectively, obtaining 2.56V in ACDET, but the result is the same, neither the charging LED lights up, nor is there any change....Leave a comment:
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The measurement is 0.835 in diode mode...Leave a comment:
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Does that mean the PEX_RST signal is generated by the CPU? Are we talking about a faulty CPU or one with broken balls?...Leave a comment:
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In summary, the Dell Alienware does not detect the dGPU, in this case the Nvidia RTX3060. It has all its voltages to work. I have checked the voltages in UG6 and I do not have PEX_RST#, what I do not know is where it comes from specifically for this board or how the resistors seen in the image work....Leave a comment:
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Update 2:
I managed to check important voltages on UG6 and UG7, but I'm missing PEX_RST#, which I don't quite understand where it's generated or why it's missing.
...Leave a comment:
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