GTX 280 Overclocking help

i dont know what to stay at. i tested the SSC FTW HC and custom. but i never hit over 75c


but my gfx at loop 3 started to like not go crazy but some things was turning straching and white and stuff. also i saw black boxes on the FTW Clock but not the HC Clock.


Test 1


FTW Clocks.


670

1442

1215


Min fps - 17.86

Max fps - 34.93

Overall 26.88

---------------


water cooled clocks.

691

1458

1215


Min 16.43

max 35.43

overall 26.905

---------------

Custom clock

680

1458

1215


Min 17.89

Max 34.75

overall 26.795

start with core, when you start to see artifacts, turn it down. then dot he same with memory.

thank you!

np