lockme in 10pack. check pm

new bee here, I just purchased 280x with bios 015.040.000.003.000000

windows7 professional 64bit. 13.12 catalyst and 2.9 sdk. sgminer4.0 can only generate 640-660khs pointing to [Suspicious link removed]

"api-listen" : true,
"expiry" : "120",
"failover-only" : true,
"log" : "5",
"queue" : "1",
"scan-time" : "60",
"scrypt" : true,
"auto-fan" : true,
"gpu-threads" : "2",
"gpu-engine" : "1020,1025",
"gpu-memclock" : "1500,1500",
"gpu-powertune" : "0,10",
"intensity" : "13",
"temp-target" : "75",
"temp-overheat" : "82",
"temp-cutoff" : "87",
"temp-hysteresis" : "3",
"vectors" : "1",
"worksize" : "256",
"lookup-gap" : "2",
"shaders" : "2048",
"thread-concurrency" : "8191"

gpuz showing temp 79-82, gpu load 94-96%, vddc 1.15-1.17