Twin ddr3 memory showing different speeds in cpuz

[shakatar]

hi, i have the following motherboard-Asus M4A785TD-V EVO, AMD 785G, AM3

the following cpu-AMD Athlon II X4 620, Quad Core, S AM3, 2.6GHz,

the following memory- (2x1GB) Corsair TwinX XMS3, DDR3 PC3-10666 (1333) 240 Pin, Non-ECC Unbuffered, CAS 9-9-9-24

ive set it to 667mhz.in bios
cpuz shows:
slot 1
module size 1024mbytes
max bandwith PC3-8500F(533MHZ)
manufacturer corsair
part number CM3X1024-1333C9
slot 2
module size 1024mbytes
max bandwith PC3-10700H(667 MHZ)
manufacturer corsair
part number CM3X1G 1333C9
is this right? why does slot 1 show 533mhz and slot 2 is showing 667 mhz?

 

[r_manic]

To be clear, have you installed both sticks on slots with the same color?

 

[shakatar]

hi,
thanks for your reply, i have it installed in the same colour slots running dual channel,i phoned the supplier from whom i purchased the memory,
i they had me run memtest,which showed thousands of errors on the memory,i have since returned the memory to them and they have run there own test and their test results show it has failed their memtest testing.
so iam waiting for some replacement memory to arrive.

 

[o1die]

You have 2 different ram sticks; one runs faster than the other. Actual system speed is probably the slower speed. Cpuid is just showing you the rated speed for each stick.