New RAM suggestion.

kingoftown

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Jul 18, 2015
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I've got a Simmtronics 4GB DDR3 1333MHz PC10600U module. 2rx8 PC3-10600U-9-11-ZZ0 is written on the module. CPU-Z states CL-9, tRCD-9, tRP-10, tRas-24 and tRC-33, whereas under the SPD tab, there are values ranging from 7-33. I've got one slot free, and I plan to add another 4gb module in it. Since compatibility is a hit and trial in RAM modules, I am looking for a good module with similar specs to increase overall performance of my pc and a bit of gaming too. A bit tight on budget though. Suggestions would be highly welcome. Motherboard is Gigabyte GA-F2A55M-DS2 Rev 1.2
 
Solution
It would be a better option to get a 2 x 4 GB dual channel kit to begin with as the two modules within the kit have been tested for and guaranteed to be compatible with each other.

Even if trying another exact same individual 4 GB module (not from a dual channel kit), there is still no guarantee the existing 4 GB module and the new 4 GB module will be compatible with each other. It may require trying several of these modules until a compatible combination is found. Because this procedure can take time and cost more in the end, it is not the recommended way to go.

Recommend getting a 2 x 4 GB dual channel kit, and sell the existing 4 GB module or keep it as a backup module.
It would be a better option to get a 2 x 4 GB dual channel kit to begin with as the two modules within the kit have been tested for and guaranteed to be compatible with each other.

Even if trying another exact same individual 4 GB module (not from a dual channel kit), there is still no guarantee the existing 4 GB module and the new 4 GB module will be compatible with each other. It may require trying several of these modules until a compatible combination is found. Because this procedure can take time and cost more in the end, it is not the recommended way to go.

Recommend getting a 2 x 4 GB dual channel kit, and sell the existing 4 GB module or keep it as a backup module.
 
Solution