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CPU and MB temperature both showing 0.00C?


helltoast
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41 minutes ago, KaosEngineer said:

Which replacement dashboards have you tried?

You are certain that it is a 1.1 revision motherboard and not a 1.6?

unleashx and evolutionx. temps read 0C on hexen and rocky's as well. definitely a 1.1/not a 1.6, I just TSOP'd it.

been googling this and came across another post of yours. someone else had this problem and you suggested they cleaned the C6F2 and C6F3 caps, and checked for a broken trace between pin 7 on the ADM1032 and pin 15 on the PIC.

I cleaned both caps thoroughly (and reflowed C6F3 since it was closer to the leak) and checked for continuity between the pins. found no problems...

maybe the ic or the caps are dead?

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The chip itself may be dead.  With the proper test equipment, you could capture the data being sent to/from the ADM1032 chip and the PIC processor to verify.

The PIC is the master device on the SMBus that reads and writes data from/to several chips connected to this shared serial data bus.  

The SMBus consists of 2-wire network:

  • SDA - Serial Data In/Out
  • SCL - Serial Clock

The PIC processor, Xbox's System Management Controller, acts as the Master device that sends requests to the other SMBus peripherals. Slave devices connected to the bus respond with there data when they recognize there assigned address being accessed.

 

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On 2/11/2021 at 8:21 AM, KaosEngineer said:

The chip itself may be dead.  With the proper test equipment, you could capture the data being sent to/from the ADM1032 chip and the PIC processor to verify.

The PIC is the master device on the SMBus that reads and writes data from/to several chips connected to this shared serial data bus.  

The SMBus consists of 2-wire network:

  • SDA - Serial Data In/Out
  • SCL - Serial Clock

The PIC processor, Xbox's System Management Controller, acts as the Master device that sends requests to the other SMBus peripherals. Slave devices connected to the bus respond with there data when they recognize there assigned address being accessed.

 

don't have the equipment to test it that extensively unfortunately. I'll just try replacing the ADM1032, but assuming that's not it, what else could it be? maybe the caps are blown? don't think the PIC could be causing this, everything else seems to work fine.

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