LX2162A DDR max speed

Hey!
I’m using LX2162A with ClearFog dev board.
According to datasheet maximum DDR speed for LX2162 is 2900


Using DDR 3200 causes problems with our test software - Linux freezes when using 3200. Downgrading to DDR speed 2600 resolved all problems.
Is there any reason for providing prebuilt images with DDR speed 3200 for LX2162 (could be found here SolidRun Images)?

I am checking with the bring up team regarding this discrepancy. I know that our current product and BSP have passed all our internal burn-in and validity tests with the existing BSP settings.