Product Gallery MSI 890GXM-E65

When we flip the board around once more we spot 4 DIMM slots. Up-to 16 GB can be configured here. The 24-pin motherboard connector is placed reasonably okay in the lower middle. below it, the traditional IDE Parallel ATA connector.

Moving slightly to the left, here we see four SATA3 ports and then (hard to see) behind them another SATA3 connector. At the back panel you'll notice a eSATA port thus that makes connectivity for six SATA based devices.  All ports are SATA3 thus SATA 6G creating massive bandwidth for SATA3 compatible storage units.

The left side of the motherboard. Underneath that little grey MSI logo'ed heatsink the Southbridge chip is located; SB850. Below it we spot the front panel connectors, not color coded, and roughly in the middle we spot another several headers for USB ports.

When we zoom in a little we see an OCSWITCH containing two micro jumpers. The switches can increase the processor base frequency on the fly.

ON-ON = default
ON-OFF = 10% extra
OFF-ON= 15% extra
OFF-OFF =  20% extra

It only effects the base frequency and does not have an effect on anything else like voltages etc.

Last photo, just behind the pack panel I/O we spot a NEC controller. That in fact the controller responsible for USB 3.0.