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Memmory not running full mHz

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January 3, 2011 11:47:33 AM

Hi! :D 

I have bought a new pc and put 12 Gb memory in it which was supposed to run at 1600 mHz.
But when i open CPUZ it says that the memory is only running around 500 mhz? :o 

How can i take advantage of the full speed? :( 

Thanks in advance
Mathias


Picture of CPUZ calculations
a b } Memory
January 3, 2011 1:38:23 PM

It's actually running 1066 or so, ram is DDR= Double Data Rate. In order to run your ram faster you will have to go into bios and set your ram voltage, frequency, and timings manually.
a c 347 } Memory
January 3, 2011 1:41:43 PM

^+1 and 1066 MHz is the atypical Default Speed. You will need to set the DRAM Frequency or Memory Multiplier {GA}, CAS Timinings, and DRAM Voltage.

Q - What MOBO?
Q - What CPU?
Q - What EXACT RAM? Post a link to your exact RAM {look at the SPD tab}.
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a c 347 } Memory
January 3, 2011 2:49:30 PM

Quote:
i thought 1333MHz was typically default, anyways..

and that's a DDR3 showing 534MHz so 3 x 534MHz = 1602 -> 534MHz X 2 = 1068 {BCLK varies}.
it's (to me) showing everything is running @ 1600MHz to me unless I am wrong.
Mathias I think you're good.

please correct me someone....?

Depends on the socket, and most of the time it is 1066 MHz. The DDR, DDR2, DDR3 all are Double Data Rate.
a c 347 } Memory
January 3, 2011 3:39:42 PM

Read the first 2 paragraphs http://en.wikipedia.org/wiki/DDR_SDRAM {includes DDR, DDR2, DDR3}; includes links to all current '3' types. Think of the numbers after the DDR as 'versions or revisions.'
January 3, 2011 5:30:25 PM

I have a core i7 950 on a ASUS sabertooth x58 motherboard with socket LGA1366. The motherboard i supposted to run PC3-12800 which should be 1600 mHz.

The ram is 3 sticks of Corsair Vengeance 4 gb 1600 mHz


Is my memory currently running around 1066 mHz only?

Best solution

a c 347 } Memory
January 3, 2011 6:24:32 PM
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Ooooh Booy! You ONLY want to buy Matched-Sets of RAM to run correctly in Tri Channel! No, it's NOT the same! RAM is separated right-off the assembly line and BIN Sorted via extensive testing. Remember you're dealing with billionths of a second and if the timings or IC performances are off then the BIOS sees the RAM as being 'defective' and shutdowns some of the sticks.

The single stick RAM is the runt {crap} of the litter and is sold individually because it doesn't fit the specs for a set.

RMA the RAM for:
CORSAIR DOMINATOR 12GB (3 x 4GB) DDR3 1600 Model CMP12GX3M3A1600C9 http://www.newegg.com/Product/Product.aspx?Item=N82E168...

CORSAIR Vengeance 12GB (3 x 4GB) DDR3 1600 Model CMZ12GX3M3A1600C9 http://www.newegg.com/Product/Product.aspx?Item=N82E168...

The IC's in the Dominator are superior.

At minimum you need to set the DRAM Frequency -> DDR3-1600Mhz
January 3, 2011 6:56:23 PM

Are you sure on this jaquith?

I was orriginally supposed to buy the pack of 3 stick when it turnet out the manufactor was out of stock. The sales-guy told me that buying 3 identically sticks seperate, was the exact same. If you know your right i will return the sticks as you request.

I have changed the mHz in the bios to 1600 mhz, and everything seems to work just fine now. CPU-Z says too, that the memory is running in triple channel

Thankyou for your post anyway
a c 347 } Memory
January 3, 2011 7:10:59 PM

1000% Certain! Like asking me if grass is green and the sky blue.

800MHz X2 = 1600 MHz {DDR Double Data Rate}

BTW - in this section I've B.A. so many questions -- I broke the Forum counter...i"m one of 4 Gold in this section. -> http://www.tomshardware.com/forum/profile-388864.htm
January 3, 2011 7:25:43 PM

Thankyou so much, I will return the sticks and get the pack of 3 sticks as soon as possible. You really helped me alot :D 
January 3, 2011 7:26:40 PM

Best answer selected by mpvm.
April 7, 2012 11:11:57 PM

I have the

Corsiar DOMINATOR 12GB (3 x 4GB) DDR3 1600 Model CMP12GX3M3A1600C9

My Rig is:

ASUS Rampage iii Formula Motherboard
Intel i7 960 @ 3.2 GHz
12GB of Corsair Dominator RAM
EVGA GTX 570 HD 2.5GB


In Speccy my RAM says it's running at 534MHz. I think maybe I don't have the right combination of RAM / CPU to get it running at 1600. When I set it to 1600 in the bios or try to use the XMP which is advertised on the friggin' box, my PC will not boot. Also, in the bios I get a message about only being able to use RAM frequencies of 1066 or 1333MHz with this setup. it's like "For locked CPU ram will only run at 1066MHz or 1333MHz". Do I have to spend $1000 and get a 990X to run my ram at the rated speed?

Though I swore I saw a review of the Rampage iii Formula where they had the same i7 960 CPU and RAM and said they OC'ed the CPU and got the RAM running to the specified 1600MHz with no problems. Am I doing something wrong?
April 7, 2012 11:19:44 PM

All I really wanna be able to do is run my RAM at 1600MHz and OC my CPU to a stable 4.0GHz.
a c 146 } Memory
April 8, 2012 1:32:08 AM

Cuzzin Chizzy,

Open a new question thread on your problem, that is the best way to get helped : )

This one is answered and old now.
a c 146 } Memory
April 8, 2012 1:32:16 AM

This topic has been closed by Nikorr
!