I got 5 RMA cards back from XFX.

Trying to overclock them but the timing straps are abnormal. It's also a different VRAM manufacturer.

I've tried copying the "1750" strap - when I got to reboot, mobo returns error and won't boot.

I've tried the XFX Samsung mem 1328 vBios. It overclocks but won't display a picture. Have to reboot and reflash with the RMA stock BIOS (which also has a 1338 core MHz clock).

https://drive.google.com/file/d/0B_eoORX_RfSLcUFrTm1ha09iRUJtV0NZeXlwWHpCM1p3SjU4/view?usp=sharing