Ram Speed questions!

[FireFox]

Hi everyone.

I have bought 6 x 4GB 1866 Ram, honestly i never care that much about learning how to read Ram's speed, i always have bought Ram with high MHz and XMP profile installed it and let it run and that was ok.

Now my question is:
Are my Ram running at 1866, lower or higher speed?

Here is a pic:

Thanks in Advance.

 

[INSTG8R]

Well if you multiply that by 2 you have your answer. So no it seems not. Are you using the XMP profile?

Edit: you can check under the SPD tab for the profile speeds available.

 

[FR@NK]

Seems like the timings are abit loose aswell.

Post a pic of the SPD tab.

 

[INSTG8R]

Seems like the timings are abit loose aswell.

Post a pic of the SPD tab.

LOL yeah just added that to my edit...

 

[FireFox]

Well if you multiply that by 2 you have your answer. So no it seems not. Are you using the XMP profile?

Why 2 if it's running Triple channel, should be x 3?

Evga SR 2 Motherboard doesn't have XMP profile.

 

[uuuaaaaaa]

Why 2 if it's running Triple channel, should be x 3?

Evga SR 2 Motherboard doesn't have XMP profile.

iirc DDR3 stands for Double Data Rate type 3

 

[FR@NK]

DDR3 is dual data rate so 750MHz is 1500MHz effective speed. Triple channel is something different(and is working fine based on that cpu-z screenshot).

 

[FireFox]

 

[INSTG8R]

Why 2 if it's running Triple channel, should be x 3?

Evga SR 2 Motherboard doesn't have XMP profile.

Well if you can't use the XMP profile then it will just run the "standard JDEC profile" so that is what you are getting. Only thing you can do is write down all the XMP timings from the SPD Tab and put them in yourself if you want the advertised speeds.

 

[Agentbb007]

Why 2 if it's running Triple channel, should be x 3?

Double data rate (or DDR), it lets the memory transfer data on both the rising and falling edges of the clock signal, giving it the capability to move information nearly twice as quickly as with regular SDR SDRAM.

Dual channel or in your case Triple channel should not be confused with double data rate (DDR), in which data exchange happens twice per DRAM clock. The two technologies are independent of each other and many motherboards use both, by using DDR memory in a dual-channel configuration.

 

[jsfitz54]

If you are going to OC the X5677's, try manually setting the ram for 1333.

 

[FireFox]

If you are going to OC the X5677's, try manually setting the ram for 1333.

The X5677 are overclocked, i was reading that when you increase Bus speed automatically ram frequency increase, but in my case it seems that it's not working that way, i know that i am missing something, what? i don't know, something really funny, when i change Timings and voltage to 165v CPU-z show the new timings but it doesn't show the new voltage

 

[INSTG8R]

The X5677 are overclocked, i was reading that when you increase Bus speed automatically ram frequency increase, but in my case it seems that it's not working that way, i know that i am missing something, what? i don't know, something really funny, when i change Timings and voltage to 165v CPU-z show the new timings but it doesn't show the new voltage

Yeah CPU-Z can't/doesn't do it. You can double check with something like AIDA or HWinfo I'm sure.

 

[FireFox]

DDR3 is dual data rate so 750MHz is 1500MHz effective speed. Triple channel is something different(and is working fine based on that cpu-z screenshot).

It's not working fine, 1866 ÷ 2 = 933 and the Ram is running at 1500 ÷ 2 = 750.

Btw an user from another forum told me:

You need to increase CPU Uncore Frequency to raise memory multiplier. Don't leave it at 12X.

That's mean that in certain parts i am right when i say that it's not running properly.

 

[FYFI13]

If you are going to OC the X5677's, try manually setting the ram for 1333.

WHY? Why would you underclock the RAM? It's rated for 1866MHz.

 

[Komshija]

Nope. Your RAM is running in odd 1500 MHz mode. Are they the same sticks (same latencies and same clock speed) from the same manufacturer?
Maybe you'll have to manually adjust your timings and voltages to achieve 1866 MHz.

 

[FireFox]

WHY? Why would you underclock the RAM? It's rated for 1866MHz.

Maybe you should read the while thread

I don't want to downclock it, the problem is that Ram is running at 1500 and they are rated 1866.

Nope. Your RAM is running in odd 1500 MHz mode. Are they the same sticks (same latencies and same clock speed) from the same manufacturer?
Maybe you'll have to manually adjust your timings and voltages to achieve 1866 MHz.

Of course they are all the same, i have bought it all together.

 

[FYFI13]

Maybe you should read the while thread

I don't want to downclock it, the problem is that Ram is running at 1500 and they are rated 1866.[/QOUTE]

Of course they are all the same, i have bought it all together.
View attachment 77996

Re-read my quote.

 

[Komshija]

It's quite strange why they run at odd 1500 MHz. Timings seem to be OK, matching with those on the sticker... What else? Check RAM voltage, VCCIO, VCCSA and adjust them properly. If that doesn't work, try with dual channel for testing purposes.

 

[FireFox]

Re-read my quote.

You wrote: WHY? Why would you underclock the RAM? It's rated for 1866MHz.

What do you mean?

Maybe i am too old to understand what you mean.

 

[FYFI13]

You wrote: WHY? Why would you underclock the RAM? It's rated for 1866MHz.

What do you mean?

Maybe i am too old to understand what you mean.

Sir, with all respect...

Your RAM is rated for 1866 MHz, and this gentleman was suggesting you to run it at 1333MHz, hence my response.

 

[jsfitz54]

Is the system stable with the ram @ 1500 or does it crash?
What are the others in the Xeon club getting for ram speed?

For the "others" this is not a desktop chip, it is a server chip.

 

[FireFox]

Sir, with all respect...

Your RAM is rated for 1866 MHz, and this gentleman was suggesting you to run it at 1333MHz, hence my response.

Now I got what you mean

Is the system stable with the ram @ 1500 or does it crash?

The system is stable but that's not the point, the point is why are the running at 1500 when the can/should run at 1866.

 

[jsfitz54]

Look at this, page 10: https://sp.ts.fujitsu.com/dmsp/Publications/public/wp-westmere-ex-memory-performance-ww-en.pdf

https://software.intel.com/en-us/forums/intel-vtune-amplifier-xe/topic/283958

 

[FireFox]

For the "others" this is not a desktop chip, it is a server chip.

It doesn't matter, there are people out there with the same board and the same chip that I have and they have Ram running at 2000+.