RDMattock Posted October 28, 2009 Share Posted October 28, 2009 Hi, I have been running the 2 1GB sticks for a year or two now with Windows XP. No problems, very happy. I was upgrading to Win 7 64 bit and so bought 4GB of new RAM as given above. With all 4 sticks in at standard settings I could not get Win 7 to install. I got numerous blue screens and restarts. As soon as I took out the 2 1GB sticks I have had no problems at all. Is there anyway I could get the 4 sticks to work together? Strangely I had to boot into Win XP with the 4 sticks installed and there did not seem to be any stability issues, I appreciate it was only seeing 3.5GB of the memory. It would be good to have all 4 sticks working. They are the same timings and speed. Thanks for your help Rich Link to comment Share on other sites More sharing options...
Yellowbeard Posted October 28, 2009 Share Posted October 28, 2009 There is no guarantee you can mix modules and it is not recommended. In many cases it will work but it also typically takes a bit more memory controller voltage to do it. Try increasing the memory controller voltage to the 1.3v to 1.45v range and see if it helps. Link to comment Share on other sites More sharing options...
RDMattock Posted October 28, 2009 Author Share Posted October 28, 2009 Thanks, The voltage according the the details on the memory are 2.1V for the 2GB sticks and 2.2V for the 1GB sticks. As far as I can remember the voltage was at 2.09V or there abouts according to the details in the BIOS. Link to comment Share on other sites More sharing options...
Yellowbeard Posted October 28, 2009 Share Posted October 28, 2009 2.09v may not run the 2.2v modules properly. I'd try 2.2v which won't have the 2.1v modules. But, keep in mind your stability issues may not be voltage related as you are mixing 2 different modules. Link to comment Share on other sites More sharing options...
Manick Posted October 28, 2009 Share Posted October 28, 2009 Have you updated your BIOS version to the latest provided by Gigabyte? If not, that could be a good place to start at. When mounting the ram-sticks into your mainboard, did you mount the 1gb sticks in for example the blue slots and the 2gb sticks in black slots (colors are not the same for all mainboards) ? This way you enable the memory sticks to work in pairs and should reduce the chances of errors. Link to comment Share on other sites More sharing options...
RDMattock Posted October 30, 2009 Author Share Posted October 30, 2009 Thanks for your suggestions @Yellowbeard I appreciate that any instability may not be down to the voltage levels when mixing sticks @Manick I have BIOS F8 which I believe is the latest version, there is a beta version out but I am always wary of those. Yes I did match up the sticks, putting the 2 2GB sticks in the same colour slots. Link to comment Share on other sites More sharing options...
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