Sign in with
Sign up | Sign in
Your question

New ram bought a while back reports slower than expected speeds/info

Last response: in Memory
Share
June 21, 2013 1:35:11 PM

I bought some ram a while ago to upgrade from 4gb to 8gb, which I could have sworn was precisely the same ram I had already, it was advertised as "OCZ DDR3 PC3-10666 / 1333 MHz /Gold Edition / Triple Channel Kit 6GB" (I'm using only two of the sticks to combine with my already 2x2gb sticks to make 8gb in total). This should be exactly the same as the ram I had already, when I first built this computer I made sure to keep all the details of all the components in a file, and under memory it has my ram as "OCZ Gold 4GB (2x2GB) DDR3 PC3-10666C9 1333MHz Low-Voltage Dual Channel", I see no reason why I could have recorded this wrong.

However recently I noticed 3DMark was reporting that two of my ram sticks had a slower speed than the other two. I investigated by using RAMMon, and indeed it shows two of sticks have a slower transfer speed, clock speed and lower bandwidth among other things, here is what RAMMon reports: http://gyazo.com/002a6a684c16f239ad6c057cbc5b3e1d (sorry about picture, the text is too wide to paste directly). I am pretty sure slot 3 and slot 4 are where my new ram sticks are but I do not know for sure, however it seems unlikely that I would have initially installed my first ram sticks in 3 and 4.

My questions are: is it possible that my motherboard (Asus M4A88TD-V EVO/USB3), or BIOS is somehow slowing down the speed of the additional two ram sticks? If not, could this be affecting performance at all or is it harmless? Is it bad to have 2 sticks of one speed and two sticks of another? Would it be worth asking the seller for a refund/replacement or is the setup acceptable none the less?

edit: I've just noticed all 4 sticks have the same model part #, doesn't that mean they should be the same?
June 21, 2013 1:55:45 PM

You shouldn't be running ram on the same motherboard with different timings. Try putting your bios on AUTO for the memory, and possibly that will even things out..
m
0
l
June 21, 2013 2:09:49 PM

Andrew Goulet said:
You shouldn't be running ram on the same motherboard with different timings. Try putting your bios on AUTO for the memory, and possibly that will even things out..


DRAM Frequency is already on auto, should I try setting it to 1333mhz?
m
0
l
Related resources
a c 1979 } Memory
June 21, 2013 3:36:07 PM

You are looking at info that is pulled off the SPD of the sticks, specifically the default boot settings, to see what your DRAM is actually running at pull CPU-Z off the net and run it, in the MEMORY tab, you'll see an item FREQUENCY which will prob show around 667, regardless whatever shows in that pane is your true feq you are running the sticks at, take it times 2 to get the effective rate or 667 x 2 = 1333, if at 800, then 800 x2 =1600 as this is DDR (DOUBLE Data Rate), the numbers you are referring to can also prob be seen in the SPD TAB of CPU-Z
m
0
l
June 21, 2013 4:30:44 PM

Tradesman1 said:
You are looking at info that is pulled off the SPD of the sticks, specifically the default boot settings, to see what your DRAM is actually running at pull CPU-Z off the net and run it, in the MEMORY tab, you'll see an item FREQUENCY which will prob show around 667, regardless whatever shows in that pane is your true feq you are running the sticks at, take it times 2 to get the effective rate or 667 x 2 = 1333, if at 800, then 800 x2 =1600 as this is DDR (DOUBLE Data Rate), the numbers you are referring to can also prob be seen in the SPD TAB of CPU-Z


Memory tab says the DRAM frequency is 535.7mhz, roughly the same as what it reports for slots 3 and 4 in RAMMon, and lower than what RAMMon reports for slots 1 and 2.
m
0
l
a c 1979 } Memory
June 21, 2013 6:02:26 PM

CPU-Z is reporting what you are actually running at........RAMMon is showing you nothing but information from the SPD of the sticks, simple information about the settings available for the sticks, not what the sticks are running at
m
0
l
June 26, 2013 9:08:34 AM

Tradesman1 said:
CPU-Z is reporting what you are actually running at........RAMMon is showing you nothing but information from the SPD of the sticks, simple information about the settings available for the sticks, not what the sticks are running at


I know, the point is that I am sure that is too low, I am certain it should be ~667 not 535. Would this lower speed affect gaming performance?
m
0
l
a c 1979 } Memory
June 26, 2013 3:39:41 PM

Need to set it to 1333 manually, then check the base timings and make sure and DRAM voltage are to spec
m
0
l
!