Memory Upgrade/Adding into current memory

[ru_1980]

Here is what I got:
Gigabyte GA-990FXA-UD3
Phenom II x4 955 C3 OC to 3.6 GHz 1.425v (2.2 ghz NB 1.225v <---I think)
Sapphire HD6970 (reference design cooler)
Kingston HyperX DDR3 1333 7-7-7-20 1T @1.7volts KHX1333C7D3K2/4G (not OC'd just set to manufacturers spec's)
2x wd black 640GB and a WD black 320 GB
Antec TPQ-850W,
Corsair H100 Closed Loop Liquid cooler
Corsair 600T case very nicely Modded

I am thinking of adding more memory. I heard 8 GB total should be enough but would like to go to 12GB, am I wrong? here is what I am thinking of adding to get 12....
http://www.canadacomputers.com/product_info.php?cPath=24_311_312_611&item_id=036015
...unless you guys think 8GB is enough. I am having problems with DCS A10C flight sim combat game, crashes when I tab out. Uses almost 2GB when running.... (about 80% total system memory utilization on that little windows gadget thingy)


I noticed that kit is a newer revision, hence the extra "A" in the part number. My question being should I buy this kit to ADD to my current memory? Would this memory work properly with my current memory? Or should I go for some "Better/Faster" 8GB or 12GB kits? Any ideas whould be greatly appreciated. The money isn't really an issue, and I read somewhere that 1600 was the sweet spot. Would 8GB of 1600 yeild better results with CAS numbers around 8/9? Or would 8 or 12 GB at 1333 CAS 7's be about as good/or a smarter buy. Any input is GREATLY appreciated!

Thanks guys and gals!

 

[inzone]

You cannot add a 8gb set to a 4gb set it dosn't match up. You want all tha sticks to be the same amount , so if you have two 4gb sticks , that is what you want to add and they have to have the same timings. The motherboard you have supports 32gb of ram so what you want to do is get a 16gb set of dual channel ram. A matched set. Dual channel.I would get a matched set of 16gb dual channel ram that also has the XMP profile. Example;

G.SKILL Sniper Series 16GB (4 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Low Voltage Desktop Memory Model F3-12800CL9Q-16GBSR1

http://www.newegg.com/Product/Product.aspx?Item=N82E16820231480

 

[ru_1980]

You cannot add a 8gb set to a 4gb set it dosn't match up. You want all tha sticks to be the same amount , so if you have two 4gb sticks , that is what you want to add and they have to have the same timings. The motherboard you have supports 32gb of ram so what you want to do is get a 16gb set of dual channel ram. A matched set. Dual channel.I would get a matched set of 16gb dual channel ram that also has the XMP profile. Example;

G.SKILL Sniper Series 16GB (4 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Low Voltage Desktop Memory Model F3-12800CL9Q-16GBSR1

http://www.newegg.com/Product/Product.aspx?Item=N82E16820231480

I was under the impression low voltage ram was more for intel boards. I am guessing I will have to manually set that to the 1.35v it requires in order for it to work properly...Don't know what XMP is....gonna google that now...

EDIT: I also see that muskin offers 1600mhz CL7 memory...Mushkin any good?

 

[ru_1980]

And what about this kit? 16 GB may be a little overkill for the gaming I do....
http://www.canadacomputers.com/product_info.php?cPath=24_311_312_612&item_id=041084

 

[ru_1980]

So I went out and bought a memory kit today
http://www.newegg.ca/Product/Product.aspx?Item=N82E16820231431
And for some reason my overclock started failing in prime95 large FFT after about 15 minutes. Would it be the memory causing this? I down clocked everything back to stock (both CPU and CPU-NB) and volted cpu and cpu-nb back to normal. The memory is running right now at 7-8-7-24 ~1.58v and I am running prime large fft again Any ideas? Passed with the old HyperX 1333 7-7-7-20 just last night at 3.6CPU and 2.2 cpu-nb.

 

[inzone]

Your motherboard supports 1.5v memory , if you go to Gigabytes web page for that MB under the specifacations tab you will see that the memory slots on your MB support 1.5v and you bought 1.6v memory. Since you bought it from Newegg they are very good with RMA'S and just say it's not compatible. The memory that would work best for your motherboard would be 1.5v.

 

[inzone]

I know you want to add more memory but you will not use more than 8gb , even though your MB supports up to 32gb there is just nothing out there to take advantage of really large amounts of memory. So if you pick up 8gb of 1.5v memory you would be fine.

 

[ru_1980]

I know you want to add more memory but you will not use more than 8gb , even though your MB supports up to 32gb there is just nothing out there to take advantage of really large amounts of memory. So if you pick up 8gb of 1.5v memory you would be fine.

I didn't actually buy it from newegg, I just used that as an easy link to show what I bought. I actually bought this kit from canada computers. Upping the voltage to the recommended 1.6v won't help? Not to mention I also ran my old hyperx at 1.7 volts with no issues.