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1066MHz Dominator running at 800MHz


sdanieluk

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Hi all,

 

Hope somebody can help me out.

 

I have a Dell XPS 630i and have just brought 8gb (4x2gb) of corsair dominator RAM.. TWIN2X4096-8500C5DF.

 

I cannot get the stuff to run at 1066MHz, my specs are below.

 

Dell XPS 630i

8gb Corsair dominator

2 x nvidia 9800 gx2's running in quad sli

intel core 2 quad Q9650 @ 3.0GHz

 

Any ideas anyone???

 

Thanks....

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Originally Posted by RAM GUY

With 4 modules I would suggest setting the memory frequency at DDR800 or 667 and set the memory Voltage to 2.1 Volts and set the NB/MCH/SPP Voltage to +.2 Volts as well and test the system with http://www.memtest.org. In addition, with some MB's (Mostly ASUS) you have to disable legacy USB in the bios when running any memory test.

 

what you have are 2 sets of matched ram, for a 4 stick config it must be purchased that way not 2+2. a 4 stick set has been matched and tested together.

 

in fact the only tested compatible ram for your rig from Corsair is DDR667

http://www.corsair.com/configurator/system_results.aspx?id=666335

any other model you get to work at all is a gift. so if you are fully up and running at 800 you have beat the odds.

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Ramguy,

 

I cannot get the system to run when tring to clock the memory at 1066MHz.

 

It will either run for a few seconds then hang or bsod.

 

I have put the timings to 5-5-5-15, changed the voltage to 2.1.

 

All works fine when ram runs at 800Mhz.

 

A soon as i change anything else it goes wrong.

 

Any ideas?

 

Thanls.

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  • Corsair Employees

What is the system configuration and how many modules are installed?

As I said before if you have more than 2 modules installed you will not be able to run them at DDR1066 DDR667 or DDR800 would be suggested.

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Hi,

 

Thanks for the reply.

 

I have 4 x 2gb sticks installed so a total of 8gb running vista ultimate 64bit.

 

Looks like i can only run it at 800mhz then....which is fine by the way, i just wanted to check if it would be possible to run it at 1066.

 

Thanks!!

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  • Corsair Employees
It will be hit and miss running 4 up at full speed but for sure you would need to play with the Voltage and timings just don't go over 2.1 Volts for the memory and don't go over +.3 over default Volts for for the Memory Controller Voltage
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