that what i was going to ask now, because even if that is true, how you explain all the people using razer cables plugged in x1 without any drops in hashrates...
anyway... so Ill probably buy the same conf, amd a4-4000 and asus a55m le...
in the meanwhile if anyone have any idea on how to increase the hashrates of my two R9 280x from 720/730 to 770 tell me something.
i use
core 1055
mem 1500
flashed bios voltage on both of them to 1130 (tried to flash them to 1100, 1110 and 1120 but they didnt kept stable)
gpu threads 2
gpu power 20
thread concurrency 14336
fan 100%
my temperature are in one card 54 and other 64...