Hi, I have the same error. 5 long + 3 short blinks.
According to the official page: the integrated controller times out the BIOS.
I also put another chip like it with the new BIN and it persists. Bale voltages are present, will it be CPU failure?
A plate with missing components arrived at the workshop, please I would like to know what are the values of these three components of integrated circuit PU301. Apparently it's a SY8286B
I put tentative values guiding myself from the diagram of the nm-a681.
the third is pending.
I had downloaded the file from the web and recorded, but it is very different from the original and I had doubts. I used this link
"Flash BIOS update - ThinkCentre M72e...