sdanieluk Posted June 9, 2009 Share Posted June 9, 2009 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.... Link to comment Share on other sites More sharing options...
Synthohol Posted June 9, 2009 Share Posted June 9, 2009 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. Link to comment Share on other sites More sharing options...
sdanieluk Posted June 9, 2009 Author Share Posted June 9, 2009 Thanks for the reply... Good to know, ill be thankfull its running at 800 then!!! Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted June 9, 2009 Corsair Employees Share Posted June 9, 2009 You should be fine as long as the system is stable. Link to comment Share on other sites More sharing options...
sdanieluk Posted June 11, 2009 Author Share Posted June 11, 2009 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. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted June 11, 2009 Corsair Employees Share Posted June 11, 2009 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. Link to comment Share on other sites More sharing options...
Wired Posted June 11, 2009 Share Posted June 11, 2009 Also, they're not even officially compatible as afforementioned above. Link to comment Share on other sites More sharing options...
sdanieluk Posted June 12, 2009 Author Share Posted June 12, 2009 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!! Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted June 12, 2009 Corsair Employees Share Posted June 12, 2009 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 Link to comment Share on other sites More sharing options...
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