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Using Higher Rated RAM than OS Recognizes


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I bought an Intel DX48BT2 motherboard and initially one set of TW3X2G1600C9DHX RAM. However, I then read the note included with the motherboard saying it can only handle 2GB max of 1600 RAM so I returned it with the plan of getting 4GB of 1300 or 1066. I eventually settled on one set of TW3X4G1333C9DHX.


The question I have is, if RAM is only recognized at 1066 by the OS, is there any value in having higher rated RAM? By default the BIOS sets the RAM at 1066, and while I can manually change it to 1333, is there any performance improvement? I am not looking to overclock, just have the RAM recognized and run at what it actually is.


My computer (newly scratch built), freezes on occasion with memory faults, but I think that is coming from the memory card, not the system memory. It is a Radeon 4870 OC and think the drivers aren't quite debugged.



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  • Corsair Employees

Please make sure that you have the latest bios and load setup defaults and then set the memory Voltage to 1.7 Volts then set the timings manually to the tested settings for the specific module you have, and test the modules one at a time with http://www.memtest.org to be sure one is not failing. If you still get errors, please follow the link in my signature “I think I have a bad part!” and we will be happy to replace them or it! However, if you get errors with both modules that would suggest some other problem and I would test them in another system or MB to be sure. In addition, with some MB's (Mostly ASUS) you have to disable legacy USB in the bios when running any memory test.


Also watch the slots you have the modules in if they are passing one up but not in D/C try them in the other two slots.


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I ran all 9 tests independently last night and there were no errors detected.


Also, I manually changed the memory settings as you prescribed and that seems to be behaving properly as well.


I do think the drivers of my video card are the root of my problems since it is so new.


I do check for driver and BIOS updates almost daily hoping for an improvement.


Thank you for all of your help.

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