RAM Speeds with Gigabyte GA-990FXA-UD3

[Release The Kraken]

I plan on building my new system with this motherboard and with the RAM I have picked out (Patriot Viper 3 16GB 2x4 1866MHz) I have heard some people say that it causes major problems when trying to run the RAM at its rated speed. I would just like to know ahead of time what procedure I would need to take to get the RAM to run at 1866MHz. The processor I will be installing is an AMD FX-8350, which I don't plan on overclocking just yet.

Any help is appreciated, thanks.

[Tiger]

I don't know what a "Patriot Viper 3 16GB 2x4 1866MHz" is. 2x4 equals 8 where I went to school. An AMD FX CPU can run 1866MHz with 1 DIMM per Channel or 1600MHz with two DIMMs per channel. Higher frequencies require overclocking.

Mixing multiple kits or mixing multiple single DIMMs are not guaranteed to work.

The Revision 3 and 4 models of the motherboard allow the use of XMP profiles to automatically encode higher-performance memory timings. XMP is normally [Disabled] by default in the BIOS.

Earlier revisions 1.0 and 1 of the motherboard don't use XMP profiles so you need to manually set the Memory Clock, Dram Timings and DRAM voltage.

[Release The Kraken]

I don't know what a "Patriot Viper 3 16GB 2x4 1866MHz" is. 2x4 equals 8 where I went to school. An AMD FX CPU can run 1866MHz with 1 DIMM per Channel or 1600MHz with two DIMMs per channel. Higher frequencies require overclocking.

Mixing multiple kits or mixing multiple single DIMMs are not guaranteed to work.

The Revision 3 and 4 models of the motherboard allow the use of XMP profiles to automatically encode higher-performance memory timings. XMP is normally [Disabled] by default in the BIOS.

Earlier revisions 1.0 and 1 of the motherboard don't use XMP profiles so you need to manually set the Memory Clock, Dram Timings and DRAM voltage.

Yes, I did mean to say "Patriot Viper 3 16GB 2x8* 1866MHz memory" but there's no need to be rude about it. I also never once stated that I was mixing and matching DIMMs and I understand the results of that, which you did not need to state at all. From what I have read, people have had trouble getting their kits to run at the speed they want (1866MHz) without problems. I just wanted to know what the process was to getting the kit to run at that speed I needed before I built the system.

[thexfile]

If the 1866MHz memory is running 1.5volts that's the max speed for FX-8350. Just make sure to install the processor first before the 1866 memory.

[dmdilks]

When you install memory on a AMD board you have to set both the speed and timings. To what the memory spec are at.

You can do it manually or just set it to a Profile. I run memory that the speed is 1600 & timings are 7-7-7-18.

I can set it to that manually or when I use a Profile it set it to 1600 & 7-7-7-20. Memory support DDR3 2000(O.C.)/1866/1600/1333/1066

Anything 1866 & under you should be able to run without OC your CPU. You should be able use the 1866 and set it up.

[Vezina]

The RAM should work as per specifications.
Make sure the Command Rate is a 2T in BIOS and the voltage is the proper one.
1866 Mhz is supported with 2 sticks for the CPU.
Patriot is the RAM AMD uses on their OEM RAM sticks so it should work.

[AgentFXA]

I plan on building my new system with this motherboard and with the RAM I have picked out (Patriot Viper 3 16GB 2x4 1866MHz) I have heard some people say that it causes major problems when trying to run the RAM at its rated speed. I would just like to know ahead of time what procedure I would need to take to get the RAM to run at 1866MHz. The processor I will be installing is an AMD FX-8350, which I don't plan on overclocking just yet.

Any help is appreciated, thanks.

If the board is rev 4 just set the ram XMP profile to 1866 and it will boot right away