Acer | Mg43m Motherboard Manual

Spoiler alert: You aren't going to find it.

This means Acer never intended for you to upgrade it. They intended for you to call their tech support if it broke. Acer Mg43m Motherboard Manual

The manual won't show you a photo of this. You just have to hunt for it with a flashlight. The MG43M is fine for a retro Windows 7 build or a basic office PC. It usually pairs with an Intel H61 or H67 chipset (check the large chip under the heatsink). Spoiler alert: You aren't going to find it