Resolved Motherboard need the 4,1 Flash?

[Pecator]

The case of my Flashed 4,1 was damaged during delivery. I am going to switch out with another case. Everything from my 4,1 is going into the new case except for the motherboard. will there be an issue to whether or not the motherboard was previously flashed?

 

[h9826790]

The case of my Flashed 4,1 was damaged during delivery. I am going to switch out with another case. Everything from my 4,1 is going into the new case except for the motherboard. will there be an issue to whether or not the motherboard was previously flashed?

You only flashed the logic board but not anything else.

If you use the new 4,1 unflashed logicboard, you won’t able to boot with Westmere CPU, or won’t able to boot Mojave natively, etc.

 

[tsialex]

If the new case has a mid-2010/mid-2012 backplane (SMC version 1.39f11), you can't use your early-2009 tray (SMC version 1.39f5).

An early-2009 CPU tray has to be matched with an early-2009 backplane. SMC firmware is not updatable.

While you can use a mismatched backplane and CPU tray combo for diagnostics and short tests, this makes the SMC enters fail-safe mode and all the fans of the case will run at full RPM/full time, it's like being on the side of a jet engine and no one tolerates the noise.