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HI i had to remove a faulty dvd optical drive due to crazy noise, iam planning to order a replacement but what is happening now is tat the fan is going at full speed, right from the start up, is this normal? hi i have a iMac 24 inch (white) 2.33Mghz core 2 duo, ((((i dont see no ECM number on the label so i cant say if i am giving you correct info))) Here is what was in my system profile: Computer details Model Name: iMac Model Identifier: iMac6,1 Processor Name: Intel Core 2 Duo Processor Speed: 2.33 GHz Number Of Processors: 1 Total Number Of Cores: 2 L2 Cache: 4 MB Memory: 2 GB Bus Speed: 667 MHz Boot ROM Version: IM61.0093.B07 SMC Version (system): 1.10f3 PIONEER DVD-RW DVR-K06: Firmware Revision: Q609 Interconnect: ATAPI Burn Support: Yes (Apple Shipping Drive) Cache: 2000 KB Reads DVD: Yes CD-Write: -R, -RW DVD-Write: -R, -RW, +R, +R DL, +RW Write Strategies: CD-TAO, CD-SAO, CD-Raw, DVD-DAO Media: Type: DVD-R ID: MCC 03RG20 Blank: No Erasable: No Overwritable: No Appendable: No
Sounds like you forgot to reconnect a thermal sensor, there are quite a few of these throughout the computer, and forgetting the reconnect them will result in the computer thinking that it is overheating, and reving the fans up to full speed. Thermal sensors ususually use 2-Pin connectors, and can be easy to forget to reconenct.
Recheck all your connections esp. the ones to fan and heat sink. You could have one that “looks connected” but isn’t, or you may have damaged a connector. Good Luck, N.
