amiq Posted September 3, 2009 Share Posted September 3, 2009 Hi, I am trying to setup a linux workstation with 8GBs of memory(two sets of TWIN2X4096-8500C5D) with a P5QL PRO Asus motherboard. I checked various settings and I am currently running at 800Mhz, 5-5-5-15 , 2.1V and it seems to be stable. I have a couple of questions: 1) It was suggested that to get an stable system with this setting I need to run at 800 , so is there a way to run at 1066? 2) is it OK/correct to run at 5-5-5-15? 3) Shall i modify the Northern Bridge Voltage? what should it be? How can I look up the default NB voltage? Do I also need to increase the southern Bridge voltage? 4) The memory data sheet suggests running at 5-5-5-15,2T , where shall I specify 2T, there was nowhere on the bios AI Tweak menu to set that. Cheers, AmiQ Link to comment Share on other sites More sharing options...
Corsair Employee RAM GUY Posted September 3, 2009 Corsair Employee Share Posted September 3, 2009 It will be hit and miss running 4 modules at DDR1066 using two sets of Twin2x modules, but you can try it and see if its stable in http://www.memtest.org. And I have posted this previous about mixing two sets but use these settings for the NB and memory Voltage. Also the default Voltage will normally be the first choice in the menu. With 4 modules I would suggest setting the memory frequency at DDR667 or DDR800 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. Link to comment Share on other sites More sharing options...
amiq Posted September 15, 2009 Author Share Posted September 15, 2009 So my problem with 4 modules and 8GB has not been solved yet. Basically i have tried many many many different settings and all of them caused the computer to work fine for 2-3 days. after 2-3 days the computer crashed and i got errors of memtest. the only stable setting was when i set the memory voltage to 2.3 and NB to 1.3 at 677 Hz . However, I am worried that I might damage the chips. has anyone got any success in running two sets of TWIN2X4096-8500C5D on an Asus motherboard? Amin Link to comment Share on other sites More sharing options...
d3m0n_edge Posted September 17, 2009 Share Posted September 17, 2009 I've not been able to get a stable running system with 8GB of Ram on an Asus board. Some are lucky, most are not. I gave up and stuck with 4GB. Question is, do you really need that much memory? I do need more but I'm going to upgrade to an I7 setup instead. Link to comment Share on other sites More sharing options...
Corsair Employee RAM GUY Posted September 18, 2009 Corsair Employee Share Posted September 18, 2009 And the max memory Voltage would be 2.1 Volts I would lower the memory voltage to 2.1 Volts and increase the NB/MCH Voltage +.2 Volts Link to comment Share on other sites More sharing options...
rubendn Posted September 21, 2009 Share Posted September 21, 2009 I have the same issues and finally gave up after trying everything suggested. I went back to just 4 GB. It would run fine for a while and then BSOD errors would start happening after a period (could be anywhere from a few hours to a couple of days). If I ran memtest right after the error without powering down, it would show hundreds of errors. If I powered-down and restarted, there would be 0 errors so I don't think it is faulty hardware. With only 2 sticks (4GB), I've never had a BSOD in either Vista x64 or now Windows 7 x64. Link to comment Share on other sites More sharing options...
Corsair Employee RAM GUY Posted September 21, 2009 Corsair Employee Share Posted September 21, 2009 That symptom would suggest a Voltage or thermal issue with the MB. Link to comment Share on other sites More sharing options...
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