890FX deluxe 3 Broken 800 memory divider.

[Sycotek]

Hi, having issues with the 800 memory divider with this motherboard.

Will not accept ddr 1600 at cas 7 speeds however the 667 divider will accept cas 7 @ 1666 when the fsb is overclocked to 250.

I have tried to increase cpu-nb voltage and ram voltage with no luck. tbh this divider has never been stable even at cas 8 stock voltages and speeds.

please advise