Before revision: upright=1.4|Voltage regulator module for a Gigabyte Aorus X570 motherboard running on AMD Socket AM4 A voltage regulator module (VRM), sometimes called processor power module (PPM), is a buck converter that provides microprocessor and chipset the appropriate supply voltage, converting , or to lower voltages required by the devices, allowing devices with different supply voltages be mounted on the same motherboard.
After revision: upright=1.4|Voltage regulator module for an IBM Netfinity 7000 M10 server running an Intel Xeon processor A voltage regulator module (VRM), sometimes called processor power module (PPM), is a buck converter that provides microprocessor and chipset the appropriate supply voltage, converting , or to lower voltages required by the devices, allowing devices with different supply voltages be mounted on the same motherboard.