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Windows 7: Memory Speed Issue

20 Mar 2013   #1
Apprentrice5

Windows 7 Home Premium 64Bit (Service Pack 1)
 
 
Memory Speed Issue

Hi guys after installing some new RAM i checked CPU-Z to see if all was ok, and it doesn't seem to be.

I bought some Crucial Ballistix 8Gb 1866MHz, however is doesn't seem to be running at 1866 more like 667MHZ.

I have a Gigabyte GA-970A-DS3 and a AMD FX-4100

Is there way i can force the speed on the RAM to 1866?

Any input is greatly appreciated.

Regards
Toby




Attached Thumbnails
Memory Speed Issue-memory-speed-snip.png  
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20 Mar 2013   #2
bobkn

Windows 7 Pro X64 SP1
 
 

CPU-Z reports the clock frequency of the RAM. DDR (DDR2, DDR3) transfer data twice per clock tick, so CPU-Z reports 667MHz for DDR3-1333.

Most motherboards seem to run DDR3-1333 and up at DDR3-1333 by default. To get the higher frequency, you'd either need to set the BIOS to use XMP, or manually set the RAM frequency and timings.
My System SpecsSystem Spec
21 Mar 2013   #3
Apprentrice5

Windows 7 Home Premium 64Bit (Service Pack 1)
 
 

I tried to change the RAM to stay at 1866 but it wouldn't boot, so i tried at 1600 and again it wouldnt boot. would there be a reason for this?
My System SpecsSystem Spec
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21 Mar 2013   #4
Dude

Windows 10 Pro X64
 
 

It looks to be running at 1600, as you can see in your cpuid pic to the far right the xmp profile. can you post picks of your BIOS.


Here is a good read from another forum (MSI) that explains.

http://forum-en.msi.com/index.php?topic=161322.0
My System SpecsSystem Spec
21 Mar 2013   #5
bobkn

Windows 7 Pro X64 SP1
 
 

Quote   Quote: Originally Posted by Apprentrice5 View Post
I tried to change the RAM to stay at 1866 but it wouldn't boot, so i tried at 1600 and again it wouldnt boot. would there be a reason for this?
Looking back at the CPU-Z listing, the part number it reports (BLT4G3D1608DT1TX0) is DDR3-1600. Crucial lists timings 8-8-8-24 for it, at 1.5V.

Is that correct? If so, you don't have DDR3-1866 RAM.

You should get the above settings if you select to use XMP. Alternately, set the frequency, timings, and voltage manually.

I suppose that you've got the DIMMs in the correct 2 slots for dual channel operation?
My System SpecsSystem Spec
21 Mar 2013   #6
Dude

Windows 10 Pro X64
 
 

bobkn, nice catch checking the part number. I was curious what profile or profiles it showed for XMP in his BIOS, had I checked the part number it would have told me that.

BTW, do some ram kits have multiple xmp profiles, or is one the norm?
My System SpecsSystem Spec
21 Mar 2013   #7
essenbe

Windows 7 Enterprise X64/Windows 10 Enterprise X64/Windows 10 Pro X64/Linux Mint
 
 

The screenshots you're showing are the SPD tabs which show what speeds and timings the ram can run at. You need the Memory tab to see what the ram is actually running.
My System SpecsSystem Spec
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 Memory Speed Issue




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