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ran wire to pin 13, now u7600 gets really hot and shorts to ground. Pin 13 is shorted, as well as 14. I see the line is connected to P1V05S0_AGND, is this supposed to happen or is u7600 just bad?

3v3 sus is present everywhere, as well as pm_slp_s4, s3, and 5v_s0. I narrowed it down to u7600, pin 13 is 0V, whole circuit looked fishy so I replaced almost all resistors and capacitors, and u7600. However still same issue. I noticed pin 13 was 0v but r7601 was 5v. Checked continuity and there...

Scratched pin 8 down to just board, then filled with coating, but not over the small hole I made. Pin 8 was fully free, not connected to ground, or anything, then I soldered a wire from pin 5 of U8130 to pin 8 of u6100, and yay we now get 3.3v on the spi chip. However still same 94 mah. Will be...

max my psu is taking is 1.38v at 4.5 amps. I injected it on for a straight minute, 5 times, grabbed all parts, and touched all parts of the board, and not one hot spot. The things that get hot are my injection probes, thats it. Could this be a broken trace?. Like a leakage to ground?

my fault, by run a wire I mean destroy the pad and then run a wire to pin 8. injection of 3.3v to that pin skyrockets it to more than 4 amps. 1.0v takes it to over 3 amps. however pch doesnt get hot. edit: Im struggling to find anything getting hot when injecting voltage.

820-00138 Board takes around 88-94 mah, and stays. No liquid damage signs but it looks like its been ultrasoniced before. Ive seen boards with no spi rom act sort of this way, so I measured U6100. Noticed immediately PP3v3_sus was shorted to ground and 0v, though nothing was getting warm, pch...

Finally, I had to order more solder balls to reball an donor board cpu, but board is working now. I reflowed CPU and PCH first and still same issue, so I pulled the CPU and I noticed some of the solder balls were just weird looking, or partially missing. Going over it with the soldering iron...

1.5 M ohms at Pin 3, good working board is reading about 9 M ohms 2.5 M ohms at PM_PCH_SYS_PWROK, working board is at around 9 to 9.5 M ohms Should I try to inject voltage at R1962? Or is that an actual signal not a solid voltage?

Yes, I replaced R1950 too just to be sure. Replaced U1950 the second time just to be sure, and removed R1962, and got 3.3V on Pin 3, however when putting the resistor back on I get a solid 0.000 now :unsure:. Im confused on this one.

Replaced U1950, same issue. Found Pin 2 low, found CPU_VR_EN and CPU_VR_READY are both 1.05V. Is this from the CPU or U7200? EDIT: 3v3_s0 is 3.3V, and U1950 was kinda messed up, took little heat to remove and little time, also Pin 5 is half gone but still has continuity, and is 3.3V as well as...

VR_READY is a solid 1.05V VCSST is a solid 1.05V PM_S0_PGOOD is 3.4V Pin 3 is 0V U1950 other voltages are Pin 1 - 3.4V Pin 2 - 3.3V Pin 3 - 0V Pin 4 - GND Pin 5 - 3.4V Pin 6 - 3.4V Pin 7 - Pin 5 Pin 8 - 3.4V Going to replace U1950, as it seems like somethings wrong with it. Pin 3 is a solid...

You were right, im overthinking everything at this point sorry. Yes SPI is normal and SPI_DESCRIPTOR_OVERRIDE_L is normal. Ive flashed your BIOS file youve provided and now the board does not start. However it would sometimes do this before as well. It now is taking 228 Mah, with IO board and...

"Some BIOS data lines drop to 0V as normal, when PCH accesses SPI chip" These signals are still 0V, complete 0.000 even after "booting", I can reach the EFI and boot selector stage, as well as diagnostics, and they are still 0V. Would this mean PCH is always accessing SPI chip? Or would it mean...

I was not mixing them, I just stated I had a problem like this earlier but not related. A working 820-3435 should have 3v3 on all pins no? even when pch is accessing spi chip? If what i stated above is not the case, bad pch possibly? what about the SPI_DESCRIPTOR_OVERRIDE_L signal? what does...

Okay, wow, so now the board is really weird. MOSI and CLK are now 0V. I literally just had a 820-3787 that I thought was a programming mode or something, but was a BIOS issue. Is this a BIOS issue also? Im so confused :LOL::cry: EDIT: I did nothing to it, I just took it out of the case it was...

I use the "old school" way of doing this. I did not mention it but J6100 is removed as well. I use a ch341a programmer, and a adapter board for the flash chips. I will use your ROM file. If that does not work, I will experiment with Q1920 and aliases and report back. Im so tired of BIOS...

Self thinking, would an HDA_SDOUT high signal cause this? Ive read somewhere that this is an disable ME chip?

820-3435 came into my possession. Board took over 2 Amps, and CPU was getting hot. Obviously knew it was dead, so why not have some fun? Also got it for 10$. I removed the shielding above the die to expose it. Idk if anyone else thinks stuff like this is cool but this just fascinates me, and...

Couldnt upload for some reason, heres the panic

Hello, I have an 820-3435 which has been through a little, but ALOT. I first got the board and noticed it had water damage across different parts of the board, mainly backlight, and some parts of the thunderbolt hardware as well. However, the CPU has a tiny little chip on the PCB of the CPU, on...