The A7M266 is a rather unusual motherboard in regards to the chipset implementation. Instead of adopting AMD's recommended reference design, Asus opted for a hybrid conceptualization of a variety of industry-leading technologies. The Northbridge controller utilized is the AMD-761 with support for DDR memory, AGP 4x transfers, and 266 MHz front-side bus transactions. Instead of the traditional AMD-766 Southbridge, Asus has employed the more powerful VIA 686B controller for its superior ATA/100 IDE drive support. The combination of both AMD and VIA chipset technologies allows the A7M266 to provide optimum performance and compatibility characteristics.

Instead of employing the VIA 686B's integrated options for hardware monitoring and sound support, Asus chose to implement a rather unique hardware design. Asus supplies its proprietary AS99127F ASIC chip for monitoring support of three thermal diodes, six voltage levels, four fan connectors, and chassis intrusion detection. C-Media's high-performance CMI-8738 PCI chipset provides the integrated audio solution. The 8738 offering provides hardware support for 4.1-channel sound and positional 3D acceleration. Onboard sound with true hardware 3D extensions is a welcomed addition as compared to the less desirable AC'97 software codec utilized with most current motherboard designs. In addition to integrated monitoring and 3D audio, Asus also allows for an optional onboard 3COM 3C920 100/10 Mbps Ethernet card for integrated network connectivity. The A7M266 offers a superb feature set with an unparalleled level of hardware support for a variety of advanced options.

The A7M266 offers an excellent board format with particular attention for detail and efficiency. Surprisingly the A7M does not include the large voltage regulating daughter board found with the earlier A7V design. Instead, Asus has chosen to place the needed capacitors and voltage regulators closer to the ATX power connector for optimum power distribution and maximum socket clearance. Due to this design consideration, the A7M266 allows for enough socket spacing to accept even the largest processor cooling solutions currently available. Even the massive heatsinks found with the Alpha's PEP66t and Thermaltake's SuperORB should clear the onboard components with little problem.

The only potential concern to note is the placement of the ATX power connector. While being far away from most components, it does present a possible issue in regards to maximum airflow across the processor's heatsink. The power connector is situated between the chipset's Northbridge controller and the onboard audio connector riser, in the area slightly below the socket interface. In order to properly align the ATX cable, it must be routed either directly beside or even across the top edge of the processor's heatsink. This design could limit the amount of effective airflow across the heatsink's surface. However, this issue is more of an inconvenience than an actual problem as the A7M266's overall design is well researched and implemented.