Mobo won't see DIMMs

[alankujawski]

Hello I've recently bought new computer with that hardware:
Graphic card: Radeon r9 280X
CPU: AMD FX 6300
Mobo: Gigabyte GA-990XA-UD3
Memory: Patriot DDR3 2x4GB 1600MHz CL9 XMP Viper 3

And now the problem:

• 
  

When i stick listed DIMMs computer won't start up and there is no POST.

• 
  

When I install my previous memory (kingston 1333 MHZ 2x 2GB) everything is fine.

• 
  

When i install my old and new DIMMs all together it is OK but in BIOS I can't see new DIMMs. Just 1333 MHz coming from old ones BUT I can still see 12 GB of memory installed.
Unfortunately after few minutes spent on doing anything on computer it shuts down.

• 
  
  Maybe if I would manually change frequency to 1600 it would have worked but I cant change memory frequency (old DIMMs doesn't support XMP).
  
  Any solutions pleeeease?

 

[lantrich]

The configuration of the memory you bought probably isn't supported. You should look at your motherboard book and see what is supported. Single side, double side everything matters.

 

[lantrich]

Check memory support at this website.

http://www.gigabyte.com/support-downloads/download-center.aspx?kw=ga+990xa-ud3&ck=2

 

[alankujawski]

If it wouldn't have been supported shouldn't the computer not even boot up to windows instead shutting down after few minutes of usage? I tried every single configuration but with new stick it just fails to work properly. Any other suggestion?

 

[alankujawski]

Check memory support at this website.

http://www.gigabyte.com/support-downloads/download-center.aspx?kw=ga+990xa-ud3&ck=2

Well it might be the problem. My DIMMs seem not to be supported. Thanks Now only one month of waiting for new DIMMs...