I've Sapphire Radeon 9550 128/128 with Samsung 510 K4D263238G-GC2A(2.86ns FBGA) memory chips and the card works stable on 452/351.Now it's time to BIOS mod,but for this card has a four Sapphire Radeon 9600 Pro's 128MB(not VIVO&FB) Samsung 2.8ns BIOSes in techpowerup's BIOS Collection.Which is...