Hi I need some help figuring out the type of RAM I currently have installed. I have an ASUS M4A88TD-M motherboard, with a AMD Phenom II x6 2.8GHz processor and 12GB of RAM. The RAM is set up as 2 x 2GB DIMMS and 2 x 4GB DIMMS. According to my mobo manual and Crucial's memory scanner, the types of RAM my mobo can support are:
DDR3 PC3-8500 (1066MHz)
DDR3 PC3-10600 (1333MHz)
DDR3 PC3-12800 (1600MHz)
DDR3 PC3-14900 (1866MHz)
DDR3 PC3-17000 (2133MHz)
When I use cpu-z, the Memory tab shows the following info:
Frequency - 562.5MHz
FSB : DRAM - CPU/5
tCL - 9.0 clocks
tRCD - 9 clocks
tRP - 9 clocks
tRAS - 24 clocks
tRC - 34 clocks
CR - 2T
So according to the Wikipedia article on DDR3 SDRAM (DDR3 SDRAM - Wikipedia, the free encyclopedia), based on my RAM timings, I either have PC3-10600 or PC3-12800. But I can't figure out how to translate the RAM frequency to what RAM type I have. Even if I half the frequency (since it's DDR or double data rate), I get 281.25MHz. According to cpu-z my FSB is running at 200.9MHz with a multiplier of x14. But 281.25MHz is nowhere near the memory clock rates listed on the Wiki article. What am I missing? Any help is very much appreciated.
PS. I know I can turn off my computer and open up the cover to check the physical modules. But I want to learn how to check the RAM type when computer is running.
David H.
DDR3 PC3-8500 (1066MHz)
DDR3 PC3-10600 (1333MHz)
DDR3 PC3-12800 (1600MHz)
DDR3 PC3-14900 (1866MHz)
DDR3 PC3-17000 (2133MHz)
When I use cpu-z, the Memory tab shows the following info:
Frequency - 562.5MHz
FSB : DRAM - CPU/5
tCL - 9.0 clocks
tRCD - 9 clocks
tRP - 9 clocks
tRAS - 24 clocks
tRC - 34 clocks
CR - 2T
So according to the Wikipedia article on DDR3 SDRAM (DDR3 SDRAM - Wikipedia, the free encyclopedia), based on my RAM timings, I either have PC3-10600 or PC3-12800. But I can't figure out how to translate the RAM frequency to what RAM type I have. Even if I half the frequency (since it's DDR or double data rate), I get 281.25MHz. According to cpu-z my FSB is running at 200.9MHz with a multiplier of x14. But 281.25MHz is nowhere near the memory clock rates listed on the Wiki article. What am I missing? Any help is very much appreciated.
PS. I know I can turn off my computer and open up the cover to check the physical modules. But I want to learn how to check the RAM type when computer is running.
David H.