Why does pressure on left side of case cause fan to stop?
Had nVidia gpu problem. Apple replaced board. Had loud fan noise from left side. iStat was showing 0 rpms for left fan. Ordered new fan. Opened case. Held keyboard close to the display and started machine. Left fan running OK. Rpms OK. Re-assembled machine. Left fan 0 rpms again. Opened up the case again. Put in screws one by one, watching rpms. Any pressure at all on the left side of the case causes immediate spike in fan noise and rpms immediately drop to 0. Re-assembled case with a lot of the screws out or quite loose. Both fans running fine. No loud fan noise anymore. Temps are fine. Any ideas what happened post logic board change?
Is this a good question?