WARNING: There has been a recall on certain M90z and M70z all-in-one Lenovo systems due to a fire hazard.
Please visit CPSC for more information.
Glad this was documented on Lenovo’s site for the A70z (all-in-one) system.
They have other systems also and you can find them here: http://support.lenovo.com/en_US/SupportSearchResults.page?searchText=fan+locations+based+on+POST+error+code
It specifies to review the HMM (Hardware Maintenance Manual) for the FRU to re-order. The HMM can be found: http://support.lenovo.com/en_US/guides-and-manuals/detail.page?LegacyDocID=TCTR-HMM
Fan locations based on POST error codes – ThinkCentre A70z