Certo, gli ho inviato una copia del bios UEFI e Legacy, vediamo quando me li reinvia dietro.
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UPDATE:
Questo è il messaggio che mi ha scritto il modder:
"If you use MSI AB prior to flashing delete the file beginning with VEN in install dir \profiles\ .
Only flash to one bios position so you have original on one side. It does not matter if you flash UEFI rom to non UEFI switch position, card knows no difference.
Make DOS USB flash disk, use the PDF, page 13 has info on DOS commands but use appropriate ROM name and do not flash to both sides. After flash complete shut down PC by power switch in DOS, so when you switch back on card fully reinitialize it self.
When you boot into windows reset the driver to defaults, view this video (https://www.youtube.com/watch?v=2PJy8tSd_Mk&feature=youtu.be).
Included is MemoryInfo tool, run in windows to see that you see Hynix BFR as RAM once a ROM is flashed.
UEFI_BFR.rom = Vapor-X 290X with appropriate info for your PCB plus RAM IC, flash this first, run registers dump and make sure near the end the DPM VIDs match with your stock ROM, if you are unsure send me file and I will view.
UEFI_390MC.rom = As above but with 390X Memory controller timings, again do registers dump to see you get same VID per DPM.
Both ROMs have your stock ROM clocks but with 1 little tweak to aid OC'ing and "blackscreen" occurring from OC'ing at idle/low loads. They both have stock Hynix BFR RAM timings per strap, so you can gain more by modding the ROMs. I suggest you do a 3DM FS run prior to flashing so you know what your VX290 was, then retest when flashed to any of the ROMs given to see if gain performance."
Bios scaricati ed in serata dovrei avere il tempo di provare il tutto, fuor di dubbio che nel bene e nel male posto tutti i risultati.