Use this link to find the specific drivers for your motherboard.
4 x 240-pin DDR3 DIMM slots (Dual Channel, Non-ECC, Max 16GB/32GB depending on BIOS) acer ipimbar rev 102a manual link
Once you've accessed the manual link, you can download the PDF version of the manual. The manual should cover the following topics: Use this link to find the specific drivers
Alternatively, you can also search for the manual using a search engine, such as Google, using the keyword "Acer IPIMBAR REV 102A manual link". This should direct you to the official Acer support website or other reputable sources that host the manual. such as Google