Mih81r | Motherboard Manual

The "Mih81r" is typically a or mini-ITX board designed for business workstations. Key identifiers include:

Because this is an OEM board, the manufacturer sticker might say "ACER" or "eMachines" rather than a consumer brand like ASUS or Gigabyte. Do not confuse this with the "H81M" series from MSI or ASRock; those are different boards. mih81r motherboard manual

Proprietary Micro-ATX (specifically for Mini Tower and SFF cases) Motherboard Layout and Key Connectors The "Mih81r" is typically a or mini-ITX board

If you connect the speaker or USB cables to this header, you will short the board. Look for "F_AUDIO" (for front mic/headphone) which is a separate block on the left edge. Proprietary Micro-ATX (specifically for Mini Tower and SFF

The (also known as part numbers 40DDP, VHWTR, and VJ4YX) is the standard motherboard for the Dell OptiPlex 3020 Mini Tower (MT) . It is designed for entry-level business and home office use, utilizing the Intel H81 chipset to support 4th Generation Intel Core processors. Hardware Overview & Specifications