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yes 17.75v on both

diode mode reads 920 to ground pin 8 but yes measuring the resistor right next to chip that is connected to 17 on boardview yields 13.4v

OK I will probably move on from this board as it is really old and not worth fixing. Thanks for the help.

So is there anything else that could be tried on this board?

There is a short to ground on both pin 19 and 20.

1- 16.2v 2- 14.3 3- 4.24 9- 0.08 12- 3.64 13- 3.64 14- 0.11 15- 0.10 17- 0.13 19- 0.14 20- 0.14 27- 0.34

Yes it just stays at 1.17v. Does the same in SMC bypass mode. Also I will say that the fan does spin up slowly to full speed, if I put it in SMC bypass mode the fan gets to max speed much more quickly. CPU and PCH both do get hot. 19.5w draw from wall so this makes sense. Could the 0 volts on...

in the process of measuring voltages I realized that u7200 gets very hot and board now draws 3w and doesn't have green light. I might have tapped two pins together to cause this but I will replace U7200 and update after. edit: replaced u7200. board not booting same as before but u7200 not...

19 ohms on c7020

Would no clock signal from MCP be an indication of MCP failure? So I could know for sure? from this video-

reflowed both GPUs- Now the board runs fans at max for 3-5 seconds then turns off... any way to confirm what this could be? also, if I wait a few minutes before booting, board stays on 10-20 seconds. If I boot immediately after it dies, it only lasts 3-5 seconds before dying again. Edit: it...

will try reflowing both GPUs and update. curious if there is a possible way to disable one NVIDIA gpu and not the other as this 2009 has two NVIDIA gpus.

they are correct at 150/182k In regular (non smc bypassed) mode while plugged in- SMC_DCIN_VSENSE- 2.2v SMC_DCIN_ISENSE- 0.73v PBUS_VSENSE- 1.55v SMC_BMON_ISENSE- 0v

0.12v and 3.6v respectively, so the same

U5010 1 PP3V42_G3H- 3.8 2 GND_SMC_AVSS- 0 3 PP3V42_G3H- 3.8 4 SMC_MANUAL_RST_L- 4.3 5 SMC_RESET_L- 3.5 6 SMC_TPAD_RST_L- 3.7 7 SMC_ONOFF_L- 3.7 8 PP3V3_S5_AVREF_SMC- 3.5

I actually re-measured CPU core voltage and the PLT and they were 1.15v and 3.3v respectively. While USB ports do get power there is no usb activity. Coils- L7030- 13.5/14v L7630- 1.1/7.5v L7100- 0.8/1v L9701- 2.5/3.5v L7520- 8.8/1.1v L7510- 4.4/1.1v L7260- 5.4/6.4v L7220- 3.5/3.8v L7330-...

Board spins fans at max when power connected. And draws about 35w from wall. CPU VCORE is about 1v and PP3V3_S0GPU is 3.5V. No display, USB ports have power but no usb activity. I believe this might be a VGA coil short because I read that if L8920 has less than 4 ohms to ground it indicates a...

Board has no sign of life, but does spin fan max speed in SMC bypass mode. But even in this mode it has no sign of life- no display etc. No shorts on any 5V/3.3V rails. G3H voltage 13.33V. Draws 0.6 watts in when plugged in (no fan) and 5W when plugged in and in SMC bypass mode (full fan). SMC...

Tried it with a spare magsafe. Still 2.8 watts and the green light was very dim, at either 14.5 or 18.5v.

it is 3.8v