BIOS updates for the GA-H61M-S2PV model are available on this page. Select your motherboard by clicking on BIOS, and you will see the download links.
If beta updates for your BIOS are available, don't download them to avoid system instability. Also, be careful when updating the BIOS. Improper handling may cause a system malfunction.
To update the memory frequency, access to M.I.T. and choose Advanced Memory Settings.