Dow, S&P 500 open lower on Chevron
* The Nasdaq was near breakeven following some strength in shares of big-cap technology companies after Goldman Sachs raised the U.S. hardware sector to "attractive" from "neutral."
* The Dow Jones industrial average fell 38.54 points, or 0.47 percent, at 8,144.63. The Standard & Poor's 500 Index was down 4.27 points, or 0.48 percent, at 878.41. The Nasdaq Composite Index was up 1.51 points, or 0.09 percent, at 1,754.06.
(Reporting by Ellis Mnyandu; editing by Jeffrey Benkoe)