Mr.Kovacic

Nope, i seriously do not see anything unusual or any solder splashes. At the time it died nobody worked on it so its impossible for it to have solder on the traces or chips. We are hitting a dead end arent we?

Yes its giving the correct voltage. Sorry for the late reply

Like i said in my first post, its something in between. Sometimes it doesnt even want to give me the error with orange light (no power at all) and sometimes it does the error when pressing the power button. I ruled out a PSU problem because i measured all the voltages its giving and they are correct

Seems to me like they sacrificed ease of repair for more precise temperature readings by removing the ADM1032. Anyhow my understanding of xboxes does not go beyond this point. I could try and troubleshoot stuff that you folks reccomend. I doubt this information will help but i can share it: I found the xbox in my closet and wanted to try it out. Played Flatout for 3 hours and it just died. Didn’t wanna power up anymore. A few years back (before it died completely) my dad sent it in for repair. No idea what they did there, dad said they changed some capacitors. The reason why it went in repair is because it also didnt want to power up, but last time you could see the green light for a second. I still have the post-it note they stuck on the xbox, it says “power supply” so i guess that was it.

Googled the schematics for the ADM1032 chip and found which are pins 2 and 3 (sorry if this is obvious i didnt know). I have continuity and am getting 0.4 ohms on both pins to the Xcalibur chip

If i understood you correctly, the chip does exist just at another location. I went to find where it is, and if can read the numbers and letters on the motherboard, its supposed to be here... but it's not? Its not underneath also

Here is a slightly better picture

So, underneath the CPU i have found what seem to be like corroded traces. I know you cant tell from the picture (because iPhone), but they look very brown and rusty (red arrows). The blue arrow points to a trace that is discolored. It looks slightly brown

Okay i have the board right infront of me. Basically i should be looking for broken traces that lead back to the Xcalibur chip?

That was what i tried to do initially, but then i found out that my 1.6 xbox does not have a seperate temperature sensor, it is intergrated into the GPU (?) or some other larger component

No, it has a modchip

When pressing the power button, nothing happens. Sometimes it would make the fan reach max speed 3 times and flash orange for a split second. Sometimes it would do something in between and slightly nudge the fan to spin and nothing more. I should mention my xbox has a modchip. Based off the information i have gathered from forums and reddit posts, this is what i know; - IDE cable and disc drive are not the cause of the problem, everything is disconnected from the motherboard - power button and eject button work - checked the board for corrosion, cleaned with iso. alchohol - fuse on power supply is good - checked voltages on power supply ATX connector (connected it to the motherboard, stuck the probes inside the connector where the wires go and pressed the power button. This probably isnt the way to do it i know). The standby and power on voltages match, but after a few seconds the drop back to zero (excluding the orange wires which do have standby voltage) because i presume the xbox doesnt boot - checked the transistor at Q7C2 and i am not getting a match for the voltages. 1.1v on the collector and 0.6 on the emitter. I might have read the values wrong, but the still dont reach what the are supposed to Not losing hope, open to all suggestions