This motherboard is often found in office PCs and light workstation builds. Due to the Q67 chipset, it supports:
Since not everyone can locate the original PDF, here is a detailed reconstruction of the most critical sections from the Lenovo Is6xm Rev 1.0 Manual. Lenovo Is6xm Rev 1.0 Motherboard Manual
A: No. The Q45 chipset does not support ECC. The manual explicitly states "Unbuffered non-ECC DIMMs only." This motherboard is often found in office PCs
Lenovo does not always publish separate motherboard manuals for OEM boards. Instead, the motherboard documentation is embedded within the system’s hardware maintenance manual or user guide. Example jumper settings (from HMM):
To get the official information:
Example jumper settings (from HMM):