(Updated with more analyst commentary and stock price.)NEW YORK ( TheStreet) -- Intel ( INTC) is facing a rough patch on weak demand for consumer PCs. "If demand does not materialize in the next four to six weeks and the PC holiday builds are weak," there could be more downside for Intel, said Wedbush Securities analyst Patrick Wang. Right now, Intel "simply has no visibility to confidently guide Q4." The chipmaker said Friday that its third-quarter revenue will be below the company's previous outlook due to weaker-than-expected demand for consumer PCs in mature markets. As a result, analysts believe demand in the consumer PC market over the next four to six weeks will significantly impact Intel's results. Intel said in a press release that it now expects third-quarter revenue to be $11 billion, plus or minus $200 million, compared with the previous expectation of between $11.2 billion and $12 billion.