PC makers are pointing at Intel Chip as they asked Wall Street to expect lower revenue. On Wednesday morning, Intel shares fell down by 1.7% after Dell and HP both called out the chipmaker by name in earnings reports Tuesday evening. Intel remains central to the PC supply chain, though it has flattered at a crucial time because companies want to upgrade from the Windows 7 OS, which Microsoft is going to stop in the first month of 2020. Supply issues have hit Intel for a few months at a time in the past 30 years or so, but the recent episodes have been going on for a year or more, told by analyst Patrick Moorhead of Moor Insights & Strategy in an Interview on Tuesday. He also acknowledged supply is the biggest challenge Intel faces in the short term.