PSD38G1600 with ASUS SABERTOOTH 990TX Problem

[KSVN]

I have PSD38G1600K 1600mhz with ASUS SABERTOOTH 990FX BIOS 1304

I can't use 8GB,i only have 4GB usable.
Running the memory at 1333MHZ i can use 8GB.

PATRIOT MemoryFinder says it is the right kit.

What can i do for use 8GB / 1600?

THx, Marc

[Patriot_Ben]

Hello,

Try narrowing down the issue. Can you please try each stick on each slot to see if it will pick up each stick as 4GB?

[KSVN]

I can use 8GB only in singel-channel mode. In dual-channel mode i only have 4GB usable.

[Patriot_Ben]

I can use 8GB only in singel-channel mode. In dual-channel mode i only have 4GB usable.

It sounds like you have a bad slot on the motherboard. Can you take one stick and test them on each slot to see if it posts?
Please keep track and see which slots will allow the motherboard to post and which one(s) does not.