Memory timings
Hello everyone,
I hope someone can answer this :
I have 4 memory modules (2 kits of 2X2GB) for a total of 8GB DDR3 1333. The exact part number is : OCZ3G1333LV4GK (2x)
When I run CPU-Z or Memtest86+, both programs say my memory slot 1 and 3 are running at max bandwith PC3-8500F (533MHz) and slot 2 and 4 are running with max bandwith of PC3-10700H (667MHz).
I had only one kit and just added the second one (went from 4GB to 8GB) and I think before upgrading the memoey was running at 8500.
Both memory kits are the exact same. Is it the motherboard that is downclocking two of my memory units ? I have an asus P7P55D-E with a core i5 750. There are overclocking options in the Bios (auto and manual) but I don't know much about overclicking so I stayed away from any memory or cpu timing modifications. I am wondering if my computer is running optimal or is there a way I can change something to make this better..
Thank you very much!
I hope someone can answer this :
I have 4 memory modules (2 kits of 2X2GB) for a total of 8GB DDR3 1333. The exact part number is : OCZ3G1333LV4GK (2x)
When I run CPU-Z or Memtest86+, both programs say my memory slot 1 and 3 are running at max bandwith PC3-8500F (533MHz) and slot 2 and 4 are running with max bandwith of PC3-10700H (667MHz).
I had only one kit and just added the second one (went from 4GB to 8GB) and I think before upgrading the memoey was running at 8500.
Both memory kits are the exact same. Is it the motherboard that is downclocking two of my memory units ? I have an asus P7P55D-E with a core i5 750. There are overclocking options in the Bios (auto and manual) but I don't know much about overclicking so I stayed away from any memory or cpu timing modifications. I am wondering if my computer is running optimal or is there a way I can change something to make this better..
Thank you very much!
0
Comments
OCZ uses the timings as "safe settings" so any PC is guaranteed to boot with them installed, and the user must then dial the modules up to the correct settings listed on the package. Many other companies do this, too.
If you could post a screenshot of the memory tab of CPU-Z, as well what motherboard+CPU you have, we can tell you what's up.
Motherboards run the memory at the slowest speeds defined by the slowest modules. Because you have two sticks with safe settings of 533MHz, everything is being pulled down by those until you tune 'em back to the right settings manually.
The SPD tab will never change, it is written on the memory by OCZ during manufacturing.
As Thrax has stated, ALL memory in a system runs at the same speed, all the time.
I can't say for sure, as I do not work for OCZ, but I'd bet that is exactly what happened. Perhaps a new generation of motherboards work better when the memory's safe speed boots at 8500, rather than 10700? Could easily be true.
If the 2 SPD's are different like they show, then we changed for a reason.