RAM is not working on 1333Mhz

wikipedia said:

DDR should not be confused with dual channel, in which each memory channel accesses two RAM modules simultaneously. The two technologies are independent of each other and many motherboards use both, by using DDR memory in a dual channel configuration.

I edited the previous post too.

Ok then, I'll see if I can borrow one dimm from 2GB 1333 tonight and to try.

And for the edited post, my mobo don't support overclocking, so I cannot set up voltages.

If are needed, here are pics from my EFI BIOS.

OK, are you on a different board than P8H61-M LX3 ? My snip was from the manual for that board.

I'm not familiar with your CPU so maybe that is the limiting factor here.

Britton30 said:

OK, are you on a different board than P8H61-M LX3 ? My snip was from the manual for that board.

I'm not familiar with your CPU so maybe that is the limiting factor here.

I'm using P8H61-M LX3 PLUS.(in specs).

I'm not sure for the CPU... Don't know, was thinking that also.

OK, I think I have it as someone else suggested, your G630 does only support DDR31066. Look under Memory Spec here: ARK | Intel® Pentium® Processor G630 (3M Cache, 2.70 GHz)
Although the board itself will support up to 1333, the CPU has to support it as well.

Gary you are right about the Bus Clock MHz.

This won't help Stalker directly but may help understanding the specs.
I even had it wrong in my mind.
After researching the past 30 minutes I found an error in terminology has occured by many including myself.

Looking at the chart marked by me #1 you see DDR3-800 to DDR-2133 listed.
The 800 to 2133 is not MHz it is Data Rate abbreviated MT/s.
Look at list I marked #3.
Many of the manufacturers advertising errantly shows the MT/s as MHz adding to the confusion by many of us.

The Data Rate number is double the I/O Bus Clock MHz as I marked #2.

Stalker
So 533 Mhz is the Bus Clock your RAM is set at which is right for DDR3-1066 but not right for your DDR3-1333.
I don't know why but your motherboard will not detect your RAM stick as DDR3-1333 with a clock of 666MHz.
Sorry I'm not more help with your problem.
Maybe the info will help reduce some of the confusion as it did for me.


Toward bottom of page.> DDR3 SDRAM - Wikipedia, the free encyclopedia

Thanks Mike, it is getting confusing. since Wiki didn't say what MT/s is:
MT/sec Definition from PC Magazine Encyclopedia

Britton30 said:

Thanks Mike, it is getting confusing. since Wiki didn't say what MT/s is:
MT/sec Definition from PC Magazine Encyclopedia

Thanks Gary I forgot to post what MT/s was!!!

If I may. DDR 2 and DDR3 ram does collate to to a dual or tripple channel system.
The motherboard controls that. That is why you can install DDR3 ram in a dual channel motherboard if they are designed for for DDR3. You system is still running duel channel. That is why DDR2 or DDR3 ram is installed 2 at a time in a duel channel motherboard and 3 at a time in a triple channel board. The motherboard is either designed for DDR 2 or DDR3. They are not interchangeable. The motherboard is either designed duel channel or triple channel. To the best of my knowledge if you install 2 sticks of ram in a triple channel motherboard you will not have a triple channel working system.

Layback Bear said:

If I may. DDR 2 and DDR3 ram does collate to to a dual or tripple channel system.
The motherboard controls that. That is why you can install DDR3 ram in a dual channel motherboard if they are designed for for DDR3. You system is still running duel channel. That is why DDR 2 ram is installed 2 at a time and DDR3 ram is installed 3 at a time in the correct positions and the correct motherboard. I also have noticed on my system I can't run XMP. The ram goes to hight along with cpu volts. I have no idea why.

In computing, DDR3 SDRAM, an abbreviation for double data rate type three synchronous dynamic random access memory, is a modern kind of dynamic random access memory (DRAM) with a high bandwidth interface, and has been in use since 2007. DDR3 SDRAM is neither forward nor backward compatible with any earlier type of random access memory (RAM) due to different signaling voltages, timings, and other factors.
DDR3 is a DRAM interface specification. The actual DRAM arrays that store the data are similar to earlier types, with similar performance.

Dual and triple channel have nothing to do with DDR2 or DDR3 numbering.
As I highlighted in red above DDR3 is a specification.
All it does is designate Version 3 of DDR RAM.
They are now working on Version 4 which will be designated DDR4.


The notches to install them are in different places so they can not be mixed as in picture below.
Laptop memory is also different phsically to prevent mixing.