Every 9 series motherboard is compatible with thousands of devices. The engineers fit & assess both server & consumer CPUs, hundreds of memory modules, dozens of graphics cards, loads of storage devices, power supplies, network devices, displays, optical drives, peripherals & many more. Voltage regulator modules (VRMs) are among the most essential motherboard components. A good VRM intelligently delivers CPU power based on actual needs at any given time. ASUS was first with digital power design featuring faster sensing & response to deliver precise CPU power on dem&. This great accuracy reduces energy waste & of course improves system stability thanks to more consistent delivery.