Hi
I have a NM-D011 (E14 Gen2, Intel) board that's stuck in a boot loop. My findings:
Also I do not know how EC_VR_ON is created because I cannot find any information about the IT8227E EC.
Might this be a firmware issue?
I've tried to get some of this information by reading CPU specs, but I was unable to find in which sequence the EC is involved, what is firmware dependant etc.
Thank you very much in advance.
I have a NM-D011 (E14 Gen2, Intel) board that's stuck in a boot loop. My findings:
- the board consumes around 1.5 - 2W (~0.1A)
- there is continous coil whining
- all main power rails are active
- there are no clock signals, especially eSPI (although I haven't checked the XTAL and RTC crystals because I don't know how to)
- +VCCIN is 0v, none of the CPU power rails are below 40Ohm to ground
- the controller providing +VCCIN (PU8/RT3612EG) isn't enabled
- neither the enabling signal (EC_VR_ON) nor the power rail pulling it up (+VCCST_CPU) are there
- no other parts seem to be shorted, at least nothing is getting exceptionally hot
- the +1.2V (and its source P_VDDQ_LX_30) are missing, altough P_VDDQ_BST_30 exists. I'd still assume 47Ohms to gnd is ok because its a CPU rail?
Also I do not know how EC_VR_ON is created because I cannot find any information about the IT8227E EC.
Might this be a firmware issue?
I've tried to get some of this information by reading CPU specs, but I was unable to find in which sequence the EC is involved, what is firmware dependant etc.
Thank you very much in advance.