ABIT´s first dabble into the AMD K7 line was a Slot A motherboard using the VIA KX133 chipset. ABIT decided to skip the entire AMD 750 range after all the problems that surfaced with the chipset and ABIT decided to start producing K7 motherboards. Rather than build a board on a chipset that was more than unreliable, ABIT held off until VIA had finally released their first K7 chipset. Even when the chipset was released it took ABIT some time to get their Slot A solution to the market. ASUS, EPOX and many others had already had their Slot A solution in and were selling like hotcakes. The ABIT Slot A board named the KA7 and KA7-100 were among the top motherboards to hit the Slot A solutions market. The KA7-100 was the first AMD motherboard to incorporate ATA-100 IDE. ABIT used the HPT370 ATA-100 IDE controller chipset to provide support for ATA-100 IDE devices. It was later discovered that a ATA-100 BIOS update for the HPT370 chipset allowed RAID functions, this made the KA7-100 the most wanted AMD Slot A motherboard.