New
#1261
The DDR in DDR3 stands for Double Data rate. 2 X 665.2 = ~1333
Yeah I know but then what was that other guy talking about
You put the specs, where did you get that number from? Maybe the 2GB dimm was 1066MHz? It doesn't match the CPU-Z snip you posted. I don't see any problem. You have 8GB in dual channel and 18+K now. Soon as you get a 4th matching 4GB dimm, you can install all 4, and hopefully improve more :)
A Guy
I edited my last post, it's because the BIOS will adjust the RAM frequency to the specs of the lowest card, to keep from damaging it.
More info on Dual vs Single channel from your motherboard manual.
Your previous CPUZ memory tab says 665.2 MHz, which is 1330MHz actual RAM frequency.
It has to be something to do with the 2GB card.
If you want to investigate further, install the 2GB card and post the CPUZ SPD tab for it.
It is probably the board specifications, it states:
It doesn't like the different 2GB RAM card, must have different density chips.In Dual-Channel mode, make sure that you install memory modules of the same type and densty in dfferent channel DIMM slots.
Errr what about me! I'm running DDR3 1333Mhz and have even worse specs at 7350 MB/s. I'm running 2 pairs of matched corsair sticks. 1 pair of 4gb sticks (slots 1+3) and 1 pair of 2gb sticks (slots 2+4). 12 gb total.
Any advice on how I can improve my mem speed??
Many thanks in advance.