GA-970A-UD3 Rev 3.1 SATA3 ports have speed of SATA2

[mateyko]

Hello,
I have Gigabyte GA-870-A UD3 rev. 3.1 with the newest BIOS.

My problem is all SSD disks i could test seems to work at SATA2 speed not SATA3. In all benchmark they are stuck at the border of 3 Gbps/s (375MB/s).

Here is the sample screenshot.


I tried connecting only this SSD to PC and test then - nothing. Firmware  of all tested disks (Plextor 128M5S and Intel 830 64GB) is the latest one.

Im on Windows 7 Professional 64 bit.

FX-6200
16GB RAM



Polish support told me to RMA the board (i need pc for work and i have no time to take it apart).

I triet IDE/RAID/AHCI modes - no difference. Drivers are the latest.

Any ideas? I tried everything... I suspect driver to be buggy.

Whats interesting both SSD works at following modes:
PLEXTOR PX-128M5S 128GB  -   ATA8-ACS | ATA/ATAPI-7 T13 1532D version 4a
SAMSUNG SSD 830 Series 64GB    ACS2 | ACS-2 Revision 2

I could not find any information about this standards.

AMD Ahci controller driver version is 1.2.1.331

Please help me make the disks work as on SATA3 ports. And yes i connected them to SATA3 ports on the board.

Any help/ideas will be appreciated. Thank You.

[Vezina]

Bad to see the AHCI controllers under performing on version 3.1 like on version 1.0 of the board (which i have finally sold)

First of all avoid connecting the HDD-s to ports 4 and 5 the last 2 from the upper part.
Connect them to the lower 4 ones.
Those 2 are slower and intended for optical.

The speeds are indeed SATA 2 speeds like i ve seen myself with some HDD-s even on the "correct" SATA ports.

Talk with Gigabyte support on the issue ,most probable incompatibilities.
The BIOS support is not great , it s a hit and miss with this board.

[mateyko]

Thanks for info.

Unfortunately polish support wants me to just RMA the board through the seller. It takses a LOT of time and i cant afford not having pc for so long. I would have to buy new board. I could if they guarantee me i will get me money back but according to the rma terms i guess they only would have to replace it or fix it so no way..

The SSDs were tested at SATA3_0 , SATA3_a and SATA3_4 as well. No luck.

Really disappointing that Gigabyte treats users like that.

[Vezina]

I have no idea why my 890GPA -UD3 beats the hell out of the 970A-UD3 on the on-board SATA department too as it s the same southbridge

I have bought the 970A-UD3 to move to FX CPU-s smooth, but when to sell the older board i came to the conclusion it would be a waste ,waited almost one year for BIOS fixes and i have simply gave up.

On the other hand FM2 boards don t have issues it seems in the storage area.

RMA it maybe you get a proper one.