Acer H81h3-am | V1.0 Manual !!better!!

Graphics card error. Ensure the dedicated GPU is fully seated and connected to the PSU power cables, or switch to integrated motherboard graphics to isolate the issue. To help find missing details for your build, let me know:

A: Yes. The PCIe x16 slot is v2.0 (not v3.0), but the performance loss is minimal (<5%). Ensure your PSU has enough wattage (450W+ for GTX 1660). Acer H81h3-am V1.0 Manual