Go to the Lenovo Support Website .
This motherboard typically requires a rather than the standard 24-pin ATX connector found on retail power supplies. To use a standard PSU, you will need a 24-pin to 14-pin adapter cable commonly available on marketplaces like eBay0;7a0; 0;900; or Newegg 0;599;. 0;16; lenovo is7xm rev 1.0 motherboard manual
For users moving this board to a non-Lenovo case, be aware of these proprietary headers: Go to the Lenovo Support Website
You can download the Lenovo IS7XM Rev 1.0 motherboard manual from the Lenovo support website. Here's a step-by-step guide: or Newegg 0