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Late 2013 iMac missing HDD, display and RAM. I have a display panel, spare HDDs and compatible RAM in my parts bins. I can’t seem to find a straight answer about whether a temperature sensor is needed or not. From what I have read there are possibly two temperature sensors that people talk about, an LCD skin temperature sensor and the HDD temperature sensor. Can anybody shed some light on these two components? Part numbers? Where are they located? Where are they connected? If I use an Apple PCI-e SSD and third party HDD to set up a fusion drive what parts do I need to keep the fans from spinning like crazy? Which 27" iMacs need a HDD temperature sensor and which ones do not? I know that OWC sells an HDD adapter that includes a temp sensor but I can’t tell if I need it or not.
OWC temperature sensor is need unless you have an original Apple drive. The OWC site shows you what you need for several setups. https://eshop.macsales.com/upgrades/imac…
