820-00426 - memtest error.

[Alan.L]

Run OSX fine, but an application like Final Cut crashes during encoding.

i then run memtest, on last 3/4 stages, there's a lot of errors.

worth replacing 32 ram chips? do 1 side at a time and test?

 

[2informaticos]

Calculate how much will cost half of chips, think about the time need to invest and the money you can get for repair.
It may worth, if you replace the bad chips in the first step (half chips).

 

[Alan.L]

I've already got the exact chips, same code and everything, i nick them from a1278 MacBook pro 13" 2012. this board is very expensive, its one of these board has an AMD GPU. i think it is worth trying