Check out http://img848.imageshack.us/img848/8020/21051403.jpg to see what a Marvell chip looks like on the motherboard.
Apparently the newer Marvell SE9172 chip is almost up to the Intel setup.
Use the Image option of a web search where you look for a large photo of the Z77M-D3H motherboard.
With a large enough photo, you can confirm that there aren't any Marvell (or other) sata chips on the board.
If you look at the detailed specs at the GB website and/or mobo user manual for a z77-UD5H mobo, you will find:
- 2 x SATA 6Gb/s connectors (SATA3 0/SATA3 1) supporting up to 2 SATA 6Gb/s devices
- 4 x SATA 3Gb/s connectors (SATA2 2~5) supporting up to 4 SATA 3Gb/s devices
- 1 x mSATA connector
* The SATA2 5 connector will become unavailable when the mSATA connector is installed with a solid state drive.
- Support for RAID 0, RAID 1, RAID 5, and RAID 10
* When a RAID set is built across the SATA 6Gb/s and SATA 3Gb/s channels, the system performance of the RAID set may vary depending on the devices being connected.
2 x Marvell 88SE9172 chips:
- 3 x SATA 6Gb/s connectors (GSATA3 6/7/8) supporting up to 3 SATA 6Gb/s devices
- 1 x eSATA 6Gb/s connector on the back panel supporting up to 1 SATA 6Gb/s device
- Support for RAID 0 and RAID 1
and the motherboard block diagram will show the location of Marvell (or other) sata chips.