GA-990FXA-UD3 and 8Gb 1866 memory problem

[RfadGrmm]

Hi everyone.

First, I have a motherboard GA-990FXA-UD3 with 2 Kingston (HYPERX PREDATOR 4GB 1866 - KHX18C9T2K2/8X) ram modules. My motherboard has a revision v1.1. However, I'm not sure of this by now, because the cpu-z software has checked the motherboard latest information and there's something funny (for me) about that.






According to Gigabyte's product specifications:

http://www.gigabyte.com/products/product-page.aspx?pid=3996#sp

This motherboard can support 32Gb (4 x 8Gb modules). Well, I purchased 2 Kingston ram modules with those specs:

HYPERX 8GB DDR3 1866 CL10 1.5V
HX318C10FB/8

The idea was to reach 16Gb on my system. My hardware provider assure that those new memory modules are compatible with this motherboard. I have a AMD FX processor (FX-4100), so this part should be covered (if I have a FX processor installed, then I could use 1866 ram modules). But, when I installed those new 8Gb ram modules, the computer didn't boot up, not even a BIOS setup or sound error, nothing. When I put those 4Gb modules back, it works again. I tested those modules in all memory sockets (channel 1-3, 2-4), with the same result.

I have the F10a BIOS update, I'm not sure to update to F10e, because is still a BETA release, and I don't want to screw up the motherboard. I check the memory support list, and none of these ram modules appears, but one of them is "compatible" with my motherboard. I hope that the CPU-z screenshots can help to explain better my problem and find a solution to that.

Here's my current Kingston 4Gb RAM module:



Here's the Kingston 8Gb RAM module I want to upgrade:




Thanks, any help would be appreciated.

Ruben Gonzalo.

[Tiger]

HX318C10FB/8 is a single.
http://www.kingston.com/dataSheets/HX318C10FB_8.pdf

Combining multiple kits or singles can cause compatibility problems such as being unable to boot or unable to operate at rated specifications. Memory manufacturers only guarantee for compatibility applies when the memory is for a single kit. If you try to use multiple kits or singles then you assume responsibility for doing your own compatibility testing.

[RfadGrmm]

Hi Tiger,

Thanks for the answer. What ram module specification / model would you recommend for this motherboard, to reach 16 Gb? My motherboard memory slots are working in dual channel mode at 1866, and I don't know how to set up those single modules. Is there any module kit similar to KHX18C9T2K2/8X (2x4Gb), obviously 2x8Gb?

Unless I have to change for other compatible modules. Unfortunately, in my country hardware providers are working with Kingston modules mostly; it's so hard to find G.Skill, or Corsair RAM modules.

Thanks, any help would be appreciated.

Ruben Gonzalo.