I have an HP Pavilion DV7-4100 (Intel i5-460m). It's user guide specs show DDR3-1333 and it came with 2 sticks of it. However, several utilities show:
Dram Frequency: 533mhz
Timing - 7-7-7-20
FSB - 133mhz (21 multi)
FSB:DRAM - 4:16
Memory - Crucial, 4096MB, DDR3-1333, CT51264BC1339.M16F
Aida, Sandra, Cpuz, & Cpu-tweaker all show benchmarks equivalent to DDR3-1066 speeds. (when I say speeds, I mean frequencies, GB/s, nanoseconds etc... all the tests)
So, from my limited knowledge, my bus speed SHOULD be running at 166mhz. Cause then you would double it (since that's what DDR does) to 333. Which according to the FSB:DRAM ratio would bring it up to 1333 with a Dram frequency of 666. But since mine is 133, it equates to a DDR3-1066 speed. But if the bus speed was brought up to 166, then my CPU speed would be in the 3.4ghz range (which is NOT what the i5 460m is rated for). So, did HP lie about what the memory speed is, or am I missing something?
By the way, it has a crippled bios interface and there are no settings the user can change.