Model A1174 with 2 GHz Core Duo or Model A1207 with 2.16 or 2.33 GHz Core 2 Duo

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Superdrive replacement from UJ-85J to AD-5630A? iMac Intel 20"

Model is:

iMac 5.1 2.16 GHz Core 2 Duo

I have a faulty MATSHITA DVD-R UJ-85J. Can it be replaced with SONY-NEC DVD RW Drive AD-5630A?

Also, the AHT is giving me an error 4SNS/1/40000001:VDOR can it be conected with superdrive failure?

Please help!

Answered! View the answer I have this problem too

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Hi, The first part 4SNS indicates a sensor problem with the logic board. I believe that VDOR indicates a optical sensor. The suggested cure is to reset the SMC. Ralph

http://support.apple.com/kb/HT3964

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Let us know if the reset works. Ralph

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Same error.... after reseting SMC. Reseting PRAM, also didn't help.

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Sounds like you need to replace the sensor to me. Nice pick up Ralph +

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The optical drive sensor is working in Temperature Monitor Widget and when I increase fan speed the temperature on this sensor are falling down. I have also this SONY-NEC DVD RW Drive AD-5630A but I dont know if is compatibile. If the answer is yes, I will disassembly my iMac

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Sorry I can't help, but the 4SNS/1/40000001:VDOR error is driving me crazy too ..

os often hangs and when i use windows I get a Physical memory dump error ...

Was wondering if yor managed to find a solution to the problem ?

my mail id is umang.dutt@gmail.com

Thanks in advance...

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Nik will be eternally grateful.
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