X58A-UD3R Disappearing RAM Issue (4 of 6 GB detected)

[Hostile_MC]

Alright will give it a shot. Hopefully I've just been a massive noob and setting that s*** to 1600Mhz will solve all my problems though. Shall find out tomorrow on the cold boot.

[Hostile_MC]

Just noticed that with the old bios, whenever I set the RAM to run at 1600Mhz, one of the sticks stops working. When I set the multiplyer to auto it drops down to 1066 and it works again.

[Dark Mantis]

Sounds like you have one stick of memory that isn't up to the job. Did you buy them as a matching set? Anyway RMA them and get a replacement.

[Hostile_MC]

Yeah they came as a set. It's odd because I've ran memtest stuff a few times on them and nothing came up. Oh well, hope it solves it.

[Dark Mantis]

Did you run Memtest86+ on the memory when it was running at 1600 Mhz or at the standard setting?