Before searching for an "ipmmbfm motherboard manual verified," you must confirm your exact revision. HP uses this code for multiple board revisions.
4 DDR3 DIMM slots supporting up to 32GB of non-ECC, unbuffered memory. Expansion: 1 PCI Express x16 (Gen 3.0 for Ivy Bridge CPUs). 3 PCI Express x1 (Gen 2.0). 1 PCI Express Mini Card (half-length). Common Maintenance & Troubleshooting ipmmbfm motherboard manual verified