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I need help getting my ram to run it's full speed....

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March 22, 2010 6:37:50 AM

I just built my new computer system it has a i7 930, asus p6x58d Mobo, and the ram is CORSAIR DOMINATOR 6GB (3 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model TR3X6G1600C7D G.

in my bios i set up the xmp profile to #1, and it reports the memory running at 1600mhz at 7-7-7-20.
But when i check my memory speed with cpu-z, im only running at 801.8MHz. My i7 930 isn't overclocked but the core speed is running at 2939.9Mhz mutliplier x22 bus speed is at 133.6MHz....

i was hoping if anyone on here could help me?

Thanks in advance

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March 22, 2010 6:42:19 AM

vang0502 said:
I just built my new computer system it has a i7 930, asus p6x58d Mobo, and the ram is CORSAIR DOMINATOR 6GB (3 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model TR3X6G1600C7D G.

in my bios i set up the xmp profile to #1, and it reports the memory running at 1600mhz at 7-7-7-20.
But when i check my memory speed with cpu-z, im only running at 801.8MHz. My i7 930 isn't overclocked but the core speed is running at 2939.9Mhz mutliplier x22 bus speed is at 133.6MHz....

i was hoping if anyone on here could help me?

Thanks in advance


Did you buy the RAM all at the same time so you have all the same latencies and all the same Mhz?

You might want to try resetting the BIOS and leaving it all default cause usally the BIOS will communicate with the OS to tell Windows what new hardware has been installed. What OS are you running?
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March 22, 2010 6:44:15 AM

Im running windows 7 64-bit. yeah the memory i bought came in a pack it's running at triple channel....i just dont know why the memory itsn't running at 1600Mhz....is it because my cpu isn't overclocked and that's the memory speed standard for non overclocked i7s?
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March 22, 2010 6:48:16 AM

vang0502 said:
Im running windows 7 64-bit. yeah the memory i bought came in a pack it's running at triple channel....i just dont know why the memory itsn't running at 1600Mhz....is it because my cpu isn't overclocked and that's the memory speed standard for non overclocked i7s?


No thats not it. It might be your DIMMS. I mean I'm not sure if triple channel is anything like running dual graphics cards, but I do know that sometimes when you run two graphics cards the second slot will down clock from x16 to x8. Maybe just maybe your PSU isn't giving the RAM, and other computer components all the right voltage to power at max or default settings. I mean thats a hard thing I will try reaching a conculsion right now.
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March 22, 2010 6:54:03 AM

vang0502 said:
Im running windows 7 64-bit. yeah the memory i bought came in a pack it's running at triple channel....i just dont know why the memory itsn't running at 1600Mhz....is it because my cpu isn't overclocked and that's the memory speed standard for non overclocked i7s?


I think I found your answer read through this review:

http://www.tomshardware.com/forum/271360-30-memory-runn...

I read this from the link above:

"I was giving examples of the settings you might need to use to get the RAM to its specs because you didn't post the part# (specific model). That's why I said you should use the settings on the RAM stickers. The newer DDR3 RAM (since Core i7 release) must run at lower voltages than the older DDR3 used on the 775 CPUs, so it won't fry the CPU. " from: treefrog07 on TomsHardware.

There is also this:

"You'll have to enter the RAM settings in the BIOS.

Using the stickers on the RAM, write down the latencies, e.g., 9-9-9-24; the voltage, e.g., 1.65V, and the speed (1600MHz).

The next time you start your computer enter the BIOS with the Del key, and move through the selections to manually adjust the RAM settings - leave the other RAM settings on Auto." From: treefrog07 on TomsHardware.


I hope this helps you. I think this will solve your problems.
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March 22, 2010 7:22:43 AM

Thanks ShaneMarines i appreciate it, some of it helped...
I manually entered the timings (7-7-7-20) voltage @ 1.66 and i set it to DDR3-1600MHz, it only goes from 1.64 to 1.66 but i think it's okay. but it's still running at 801.8 MHz when i check with cpu-z, only difference instead of 2t it's at 1t (i'm guesssing because i didn't set somewhere).....

Is there anyone else that can help me with this?
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March 22, 2010 7:33:30 AM

vang0502 said:
Thanks ShaneMarines i appreciate it, some of it helped...
I manually entered the timings (7-7-7-20) voltage @ 1.66 and i set it to DDR3-1600MHz, it only goes from 1.64 to 1.66 but i think it's okay. but it's still running at 801.8 MHz when i check with cpu-z, only difference instead of 2t it's at 1t (i'm guesssing because i didn't set somewhere).....

Is there anyone else that can help me with this?


You might want to try to OC your CPU enough to make the RAM hit high timings or called MHZ.
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March 22, 2010 7:43:49 AM

Nevermind....apparently im "nub" at reading cpu-z memory....
I did a search and this other guy is running at the same speed, different memory, but anyways i am running at 1600MHz.

I didn't know that it was telling me it was running at 801.8Mhz times two (x2)

if i can i'll post an image, and if someone who knows how to really read what cpu-z says, please let me know if it is running at the correct speeds



Thank you in advance!
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March 22, 2010 7:50:17 AM

vang0502 said:
Nevermind....apparently im "nub" at reading cpu-z memory....
I did a search and this other guy is running at the same speed, different memory, but anyways i am running at 1600MHz.

I didn't know that it was telling me it was running at 801.8Mhz times two (x2)

if i can i'll post an image, and if someone who knows how to really read what cpu-z says, please let me know if it is running at the correct speeds

http://i18.photobucket.com/albums/b140/hyvg13/cpu-zmemory.jpg

Thank you in advance!


I found this on here:

http://www.tomshardware.com/forum/268644-30-ddr3-1600mh...

"Don't worry... Your RAM is running at 1600Mhz.

1) You set the timings in the BIOS, so no matter what a Windows program reads it, it is running at the BIOS speed.
2) In CPU-Z, you have to times your RAM frequency by two to get the actual speed. It is taking into account the multiplier, so it only shows it as half."

This is from: tecmo34 on TomsHardware.


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March 22, 2010 7:52:36 AM

Alright! Thanks a lot ShaneMarines
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a b } Memory
March 22, 2010 3:02:30 PM

vang0502 said:

in my bios i set up the xmp profile to #1, and it reports the memory running at 1600mhz at 7-7-7-20.
But when i check my memory speed with cpu-z, im only running at 801.8MHz. My i7 930 isn't overclocked but the core speed is running at 2939.9Mhz mutliplier x22 bus speed is at 133.6MHz....

No. What is happening here is that the BIOS and CPUZ calculate memory speed differently. The BIOS uses the memory clock (1600 MHz). CPUZ uses the memory bus speed.

There's nothing wrong with your RAM.
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March 22, 2010 9:29:29 PM

jsc said:
No. What is happening here is that the BIOS and CPUZ calculate memory speed differently. The BIOS uses the memory clock (1600 MHz). CPUZ uses the memory bus speed.

There's nothing wrong with your RAM.


Nice so thread is solved. *Cheers*
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