3d mark, running my memory slower?

[skullrebell]

I reccently Changed to a Asus M5A99FX Pro R2.0 , with a Fx-9590 , and 4x8gb DDR3 1600 corsair Vengance, my motherboard is detecting the correct ammount of Memory, however is detecting all different speeds of ram, in the bios, it will detect all sorts of speeds from 1050, then with i put it into Docp in the bios, it will set to 1600 then when running firestrike extreme or ice strike extreme, it will show as 867mhz, Any idea whats happening or how i can Fix it? I know my Dimms arent faulty as i have been using them for over a year

http://www.3dmark.com/3dm/6188258?

[Enderman]

867 x 2 = 1734MHz

its actually running faster than the 1600 its supposed to

[CoolaxGaming]

This ^

[skullrebell]

867 x 2 = 1734MHz

its actually running faster than the 1600 its supposed to

that makes no sense....., the 867, is what im getting when reading in firestrike results, on my old system it was reading 1600 per stick.

[Enderman]

that makes no sense....., the 867, is what im getting when reading in firestrike results, on my old system it was reading 1600 per stick.

look at CPU-Z and see what that tells you

[skullrebell]

look at CPU-Z and see what that tells you

what is cpu-z?

[Enderman]

what is cpu-z?

its a program that tells you information about your system...

[skullrebell]

Shouldnt each stick be showing as 1600, not 2 at 800 and 2 at 667 http://www.3dmark.com/is/2786421

[SImoHayha]

that makes no sense....., the 867, is what im getting when reading in firestrike results, on my old system it was reading 1600 per stick.

Its per channel......you have two rams...so 867*2 each Ram equals 1734MHz

[SImoHayha]

Shouldnt each stick be showing as 1600, not 2 at 800 and 2 at 667 http://www.3dmark.com/is/2786421

no because you have them in dual channels.  Which means they only work at a set frequency for each ram so 800 + another stick of ram = 1600 mhz.

[skullrebell]

Its per channel......you have two rams...so 867*2 each Ram equals 1734MHz

I have 4 dimms?, and its showing dimm 1 at 667 dimm 2 at 800 dimm 3 at 667 and dimm 4 at 800, So, that seems less than 1600, more like 1467?

[tnlich]

I reccently Changed to a Asus M5A99FX Pro R2.0 , with a Fx-9590 , and 4x8gb DDR3 1600 corsair Vengance, my motherboard is detecting the correct ammount of Memory, however is detecting all different speeds of ram, in the bios, it will detect all sorts of speeds from 1050, then with i put it into  Docp in the bios, it will set to 1600 then when running firestrike extreme or ice strike extreme, it will show as 867mhz, Any idea whats happening or how i can Fix it? I know my Dimms arent faulty as i have been using them for over a year

 

 

Its running correct... You are also running Crossfire or SLI?

[-rascal-]

no because you have them in dual channels.  Which means they only work at a set frequency for each ram so 800 + another stick of ram = 1600 mhz.

 

That is incorrect. DDR3 memory's effective frequency is double that of the actual frequency. It does not matter if it's single-channel, dual-channel, or triple-channel.

DDR3-1600MHz is really 800MHz.

 

Similarly, GDDR5 VRAM's effective frequency is four-times that of the actual rated. For an example, the 7GHz VRAM on the GTX 980, in reality, is running at an actual speed of 1750MHz. 7000MHz is the effective speed.

 

I have 4 dimms?, and its showing dimm 1 at 667 dimm 2 at 800 dimm 3 at 667 and dimm 4 at 800, So, that seems less than 1600, more like 1467?

 

It is showing you have for DRAM sticks. According to your profile, you indeed have four.

It seems like your DRAM is set running at different speeds for each channel. It looks like one channel is running at DDR3-1600, while the other is running at DDR3-1333. Double check your BIOS settings to make sure the DRAM frequencies, for both channels, are set to DDR3-1600.

 

On ASUS motherboards, typically Slot 1 and Slot 3 are Channel A, and Slot 2 and Slot 4 are Channel B -- they are colour-coded.

In your case for the M5A99FX PRO R2.0, they are distinguished by black slots, and blue slots.

 

3D Mark is knowing to give inaccurate DRAM frequency readings. For an example, my DDR3-2133 RAM is shown as running at "DDR3 @ 800MHz" when I clearly have them configured for 2133 (1066MHz) .

http://www.3dmark.com/fs/4257818

 

As mentioned by @Enderman, run CPU-Z and check if all your DRAM is actually running at 1600MHz (800MHz). CPU-Z shows information about your:

• CPU (model, speed, revision, voltage)
• DRAM (speed, timings, model, XMP profiles, etc)
• Motherboard (some frequencies, BIOS version, etc)
• Graphics Card (basic information such as make and model)

http://www.cpuid.com/softwares/cpu-z.html

 

As an example, here is the screenshot of CPU-Z showing my DRAM settings. As you can see, 1070MHz X 2 = 2140MHz (~2133MHz)

[Sir Asvald]

Shouldnt each stick be showing as 1600, not 2 at 800 and 2 at 667 http://www.3dmark.com/is/2786421

You have 2 sticks running at 1333mhz, and the other 2 running at 800mhz..

[MRL]

Just in case you still didn't get it,

 

memory rating on DIMM label = data rate

 

DDR = Doube Data Rate = double data in one clock tick

 

DDR3-1600 = 1600 Million Data Transfer per second which means the clock rate/frequency is 800MHz.

 

3DMark reports out DDR clock speed/frequency, not the data rate. I blame the manufacturer for using MHz on both different measurement when it is supposed to be 1600MT/s, not 1600MHz...

 

Also, 3DMark reports out DDR3 Clock Speed pulled from the SPD (Serial Presence Detect, a method used by OEMs to identify their DIMM to the BIOS for fail safe settings), not based on what you set up... By default, the DIMMs are running with lowest clock if different clocked DIMM are mixed together unless you OC them yourself.

[LogicalDrm]

E: after checking the site, it has 2 sticks on right speed and 2 at stock. Still 3dmark bugging.