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Windows 7: is my ram running at the right speed?

21 Feb 2012   #31
Raillex

Windows 7 Home 64bit
 
 

I agree with the other posters on whether running DDR3 RAM at higher frequencies makes that much of a difference. It doesn't, and this has been demonstrated by reviewers on several reputable websites. I think you'll get a lot more bang for your overclocking buck by raising your CPU multilplier on that Black Edition chip than focusing on the RAM.

Having said that, I'm running my four 2GB sticks @ 1600MHz with CPU/NB voltage set at 1.22v and RAM voltage at 1.65v. Hard to say whether those setting will let you run two 4GB sticks stably on your board using your chip. You'll have to experiment to find out.


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21 Feb 2012   #32
socrgy9

windows 7 64bit on both
 
 

hmm, i guess i thought there would be a noticeable difference. guess ill just set it and leave it. thanks to all for all the info!
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21 Feb 2012   #33
sreedhav

MS Windows 7 Home Premium 64-bit SP1
 
 

Quote   Quote: Originally Posted by essenbe View Post
If you were to install 2 sticks of DDR3-1333 they would run at 667, 2 stciks of DDR3- 2133 would run at 1066, 2 sticks of DDR3-1866 would run at 933. Again, DDR is Double data rate and the sticks are in dual chanel mode as they should be. Yes, you could probably overclock them, But, I would strongly advise against trying it unless you understand exactly what you are doing. One slight mistake and your computer will BSOD and cause all kind of trouble. It would also depend on the quality of the ram as Profdlp said.
Dear essenbe,
I am quoting a relevant part of your's here "Again, DDR is Double data rate and the sticks are in dual chanel mode as they should be." Unquote.

The Threadstarter's first post shows in his Speccy thumbnail : Channel#: Dual

Now, kindly view and comment on my Speccy thumbnail which shows Channel#: Single. Please see my specs. if needed.

regards and thank you,
sreedhav


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is my ram running at the right speed?-piriform-speccy_2012-02-22_09-50-46.png 
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22 Feb 2012   #34
profdlp

Main - Windows 7 Pro SP1 64-Bit; 2nd - Windows Server 2008 R2
 
 

Dual-Channel is not the same as Double Data Rate. The one stick of RAM you have is running at 1333 (665 X 2 = ~1333). If you added a matching stick you would have Dual-Channel.

You can read about Dual-Channel here: Multi-channel memory architecture
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22 Feb 2012   #35
sreedhav

MS Windows 7 Home Premium 64-bit SP1
 
 

[QUOTE=profdlp;1807751]Dual-Channel is not the same as Double Data Rate. The one stick of RAM you have is running at 1333 (665 X 2 = ~1333). If you added a matching stick you would have Dual-Channel.

You can read about Dual-Channel here: Multi-channel memory architecture

Thanks for the reply! A rep is winging your way!

regards,
sreedhav
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22 Feb 2012   #36
essenbe

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

Quote   Quote: Originally Posted by profdlp View Post
Dual-Channel is not the same as Double Data Rate. The one stick of RAM you have is running at 1333 (665 X 2 = ~1333). If you added a matching stick you would have Dual-Channel.

You can read about Dual-Channel here: Multi-channel memory architecture
Thanks Prof, You're just faster than me.
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26 Feb 2012   #37
socrgy9

windows 7 64bit on both
 
 

i found this while browsing/researching: AMD Phenom II X4 965 Black Edition - HDZ965FBK4DGM (HDZ965FBGMBOX)

check out the supported memory down towards the bottom...
"Notes on AMD HDZ965FBK4DGM
The processor has unlocked clock multiplier
The fastest supported memory is DDR2-1066 and DDR3-1333"

any ideas? i guess a better thread title now would be "what should my ram speed be?"
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26 Feb 2012   #38
essenbe

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

Read post #13. All AMD boards without the Bulldozer chips and chipsets on the motherboard have a memory standard of DDR3-1333. If you run it faster than that, you are overclocking the memory. The memory controller is in the chip and the only way to run it at a higher speed is to overclock it.
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26 Feb 2012   #39
socrgy9

windows 7 64bit on both
 
 

Quote   Quote: Originally Posted by Raillex View Post
I've been running four 2GB sticks of Kingston HyperX at 1600MHz with 8-8-8-26 timings on my Phenom II X4 975 machine since last April, and haven't had any problems. The IMC on my chip can cope with speeds up to around 1866 MHz, so I've left plenty of headroom with my current setting.

You're only running two sticks instead of my four, and I seriously doubt you've hurt your IMC.

Edit: I forgot to mention that only some Phenom IIs are capable of running 1600MHz and higher, and those are the newer C3 steppings. Both CPU-Z and Aida report Phenom II stepping information.
here is what i was referencing. raillex mentions that some phenom IIs can handle higher memory speeds. i found this link: AMD Phenom II X4 965 Black Edition - HDZ965FBK4DGM (HDZ965FBGMBOX)

what does it matter if my processor's "fastest supported memory" is DDR3-1333 as opposed to the motherboard? basically, if i run it faster because the motherboard can, what does that mean for the processor that supports a slower speed?

or is the info in the link i found wrong? can the cpu handle faster? and/or where's the documenting proof that it can?
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26 Feb 2012   #40
profdlp

Main - Windows 7 Pro SP1 64-Bit; 2nd - Windows Server 2008 R2
 
 

Quote   Quote: Originally Posted by socrgy9 View Post
...what does it matter if my processor's "fastest supported memory" is DDR3-1333 as opposed to the motherboard? basically, if i run it faster because the motherboard can, what does that mean for the processor that supports a slower speed?
If the memory controller is built into the motherboard then the motherboard is the limiting factor. If the memory controller is built into the CPU then the CPU is the limiting factor.

Think of it like the difference between driving an automatic transmission car and driving a stick. For two cars with similar engines your top speed down a drag strip is still dependent on switching gears fast enough - it's just a question of who or what is doing it.

Quote:
or is the info in the link i found wrong? can the cpu handle faster? and/or where's the documenting proof that it can?
The word "can" in that sentence is where the real question lies. By definition, overclocking is the process of making a computer run faster than it's rated speed. "Can" a computer do that? Sure. But it depends on the individual components involved. AMD is telling you that the memory controller built into the CPU is rated at a max of 1333. What it's rated at and what it can actually do may be two different things. There seems to be a good body of evidence to suggest that a lot of people are squeezing more out of CPU-based memory controller such as yours. Whether you can do it or not is unknown and can only really be answered by trying it.
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 is my ram running at the right speed?




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