PC and Server

Interface protection, power conversion, and signal integrity for desktop, workstation, and rack-server motherboards.

Server and PC motherboards demand reliable interface protection on every external connector, clean step-down conversion across multiple rails, and management-side discretes that survive long product life. Magnias supplies discrete and integrated parts across thirteen product lines that fit these designs, from input power MOSFETs through ESD on every USB / PCIe / Ethernet port to the small-signal transistors and logic gates behind fan, LED, and BMC control.

Block diagram

PC and Server, Interface and Power Architecture

Tap any block to see the recommended Magnias parts.

CPU

Processor (context only)

DDR Memory

DIMM slots (context only)

Hot-Swap

12V/48V power path, OR-ing FET, reverse-blocking

DC-DC Buck

12V → 5V / 3.3V / 1.8V step-down

LDO

BMC supply, low-noise analog rails

Load Switch

Rail gating, soft-start, hot-plug

USB Type-C / Type-A

Power switching + ESD on SuperSpeed pairs

PCIe / NVMe / SATA

ESD on high-speed lanes, hot-plug power

LAN / Ethernet

Common-mode filtering + ESD on RJ45 pairs

Display + Front Panel

HDMI / DP ESD, front-panel ESD, BJT drive

Fan · LED · Logic · BMC support

Management-side small-signal discretes

Request samples or a system review

Need samples for a specific block, or want our FAE team to walk through your power tree and interface protection? Tell us your part numbers and the application, we reply within one business day.