Ocing my 10666

[IGhzI]

Its a pny 10666 4 gb stick. I've tested it up to 1600 at stock volts using the fsb while keeping everything else under specs but one of the cores gets an error on the prime blend test.. Time to up the volts? One last thing how do I change the latency without damaging the memory.. Is it no different then the testing the rest of the components Its currently running 9.9.9.24