Need help choosing memory for a GIGABYTE GA-MA790XT-UD4P

sa330206

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Aug 29, 2009
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Hello,

I am looking to upgrade the memory to 16 GB (4 x 4 GB) in an older PC. Here are the specs..


  • AMD Phenom II X4 955 3.2 Ghz
    GIGABYTE GA-MA790XT-UD4P AM3 DDR3 AMD 790X ATX AMD Motherboard
    Galaxy 65NGH8DL7AXX GeForce GTX 650 GC 1GB 128-bit GDDR5 PCI Express 3.0 x16 HDCP Ready Video Card
    OCZ Obsidian 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model OCZ3OB1600LV4GK

I read someone complain that this memory will not work..
https://www.newegg.com/Product/Product.aspx?Item=N82E16820233144

What about one of these, would they work?
https://www.newegg.com/Product/Product.aspx?Item=N82E16820231428 (16 GB total though)
https://www.newegg.com/Product/Product.aspx?Item=N82E16820231544 (16 GB total though)

I appreciate the help. I thought I understood what I needed until I read someone complain about the Corsair Vengeance, I don't understand why that wouldn't work. Thanks!
 
Don't have experience with exact combination but I haven't run into compatibility problems with AMD platform and many other makes of RAM ever since DDR1. I like to stick to Kingston RAM for AMD or you could check QVL list for that MB. Those are probably only that they would guarantee but they can't or won't check them all. Probably just covering their asses when they said that it's not or may not be compatible. Just like they all say no OC or recommend substantially lower voltages while products are clearly made to OC.
 
Don't have experience with exact combination but I haven't run into compatibility problems with AMD platform and many other makes of RAM ever since DDR1. I like to stick to Kingston RAM for AMD or you could check QVL list for that MB. Those are probably only that they would guarantee but they can't or won't check them all. Probably just covering their asses when they said that it's not or may not be compatible. Just like they all say no OC or recommend substantially lower voltages while products are clearly made to OC.
 

sa330206

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Thanks for the reply. I did check out the "memory compatibility list" on the official mobo website but unfortunately it's pretty useless. Under the 1600 memory category they only have like 10 choices and none are 4 GB (Mobo states max memory is 16 GB with 4 slots total so 4 GB sticks should be fine). They only list up to 2 GB so that list probably hasn't been updated in years. I'm guessing that list came out before 4 GB sticks were normal. I guess I will just give one of the two G Skills types I listed a chance (4 x 4 GB sticks). Hopefully it will work..
 

sa330206

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Looking again, I need memory that is low profile or it's not going to fit. This is the set I am leaning toward.
https://www.newegg.com/Product/Product.aspx?Item=N82E16820231546&cm_re=F3-1600C9D-8GAB-_-20-231-546-_-Product

Maybe I will start with only 8 GB to see if it works before going for the full 16. Is it possible I could combine it with what I already have and get 12 GB (2 sticks of 4 GB G Skill and 2 sticks of 2 GB OCZ)?

This is what I currently have
https://www.newegg.com/Product/Product.aspx?Item=N82E16820227495&cm_re=OCZ_Obsidian_4GB-_-20-227-495-_-Product

Voltage is slightly higher so I wasn't sure if the OCZ would work with the G Skill memory.
 
As long as everything non adjustable matches it doesn't make much difference which make or shape memory is. Cas and timings are determined by controller chip in the sticks and most are by Hynix. Voltage at same frequency can be adjusted up. BIOS is also adjustable and most of time will change settings to match memory with lesser performance. But also it's not en exact thing so nobody can guarantee two different RAM would work with each other well until you try.