What are some good settings for a Asus 280x?

I am having quite a bit of hardware errors. Never had any on 0.5.3.

(4) Asus DC2 280x
8GB of Ram


The settings below were the same as used on 0.5.3, but I changed intensity: 13 to it's equivalent rawintesnsity: 8192.

Did I do that right?

{
    "pools": [
    ],
    "gpu-reorder": true,
    "auto-fan": true,
    "gpu-fan": "50-100",
    "temp-cutoff": "95",
    "temp-overheat": "85",
    "temp-target": "75",
    "rawintensity": "8192",
    "vectors": "1",
    "worksize": "256",
    "lookup-gap": "2",
    "thread-concurrency": "8192",
    "shaders": "0",
    "api-listen": true,
    "api-port": "4028",
    "api-allow": "W:127.0.0.1",
    "gpu-dyninterval": "7",
    "gpu-platform": "0",
    "gpu-threads": "2",
    "gpu-engine": "1070",
    "gpu-memclock": "1800",
    "gpu-powertune": "20",
    "log": "5",
    "no-pool-disable": true,
    "no-submit-stale": true,
    "queue": "0",
    "scan-time": "1",
    "expiry": "30",
    "scrypt": true,
    "shares": "0",
    "kernel-path": "/usr/local/bin"
}