GTX 1070 FF Problem with FBIOB1

[dd10]

I have a problem with the card GTX 1070 Founders Edition the problem is with the bank FBIOB1 mats showing errors after replacing it with another, the problem persists.

[DynaxSC]

Can be a few things:
1. exchanged memory is also broken, or did brake because of handling(static discharge)/heat, is the source of the device reliable ?
2. the problem is some broken track/via/contact between the memory and GPU
3. remained flux is disrupting the quite weak signals between GPU and memory
4. other crutial surrounding component was/has broken during the exchange process (resistor/cap connected with to mem the chip), can be also displaced or blown out the pcb, or has lost the parameters (resistors are sensitive to agressive fluxes, caps are sensitive to high temperature)
5. the wrong chip has been replaced by accident
6. dependent on the history of the card, maybe the GPU has been already replaced but some pads/balls are shorted or not connected
7. worst case: broken GPU

You can also try to use older version of mats, I don't know why, but 400 and 367 versions sometimes give different results, so the test result can be wrong. Try also to load an OS and check what happens.