Processor Support : Support Intel® Socket 1150 for 4th Generation Core™i7/ Core™ i5/Core™ i3/Pentium®/Celeron® Processors. Go to product viewer dialog for this item. H81 Motherboard
If you are using a motherboard with the H81H3-AM model number (commonly found in Acer Aspire desktops like the Aspire XC-605 or TC-605), you likely need to update your drivers. Acer H81h3-am Drivers