Knobbicus Posted August 16, 2006 Share Posted August 16, 2006 Ram Guy, I have the above mobo, and two sets of the above memory- i.e. 4GB total in 2 matched 2GB sets. For some time I was struggling with one of these sets, and getting all kinds of boot problems and windows XP and x64 installation problems. Now I have the second set in and all is going smoothly. My question is this: how should I set the ram timings for this type of memory with this board? I have the Corsair Labs Performance Report #5148, which details some of the ram timings, but I'm fairly ignorant of all the settings that are settable in the BIOS for this board, and don't want to screw things up. The current installed ram is working (knock on wood) with the default settings the the BIOS applies, which are 5-5-5-18. Is it true that my 'bad' ram might just be acting up becuase the settings are incorrect? And if so, can you detail for me where I need to make changes in the BIOS to get the timings correct? Thanks very much, knobbicus Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted August 16, 2006 Corsair Employees Share Posted August 16, 2006 With 4 modules you really should be using a 550-600 Watt PSU with this MB. But I would set the memory Voltage to 2.1 Volts and set the memory frequency at DDR-667 Mhz with 4 modules. But test them one set at a time at the tested settings to make sure one is not failing. DDR2-800 @ 1.9 Volts! Link to comment Share on other sites More sharing options...
Knobbicus Posted August 17, 2006 Author Share Posted August 17, 2006 That's a good idea- I have only been testing them in the pairs they came in. I did adjust the current working pair to the timings mentioned in the report- 4-4-4-12-2T at 800MHz with 1.9V and those two working sticks continued to work just fine. I then put the other two sticks in as well and the box wouldn't even post. One thing I'm confused about- why should I run 4 modules at 667MHz? Is this just for stability testing? Or are you saying that I should underclock my RAM from 800? It's just that the mobo is DDR2-800, and the ram is PC6400, so why should I need to underclock the bus? Thanks for the feedback, -knobbicus Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted August 19, 2006 Corsair Employees Share Posted August 19, 2006 There is more loading on the system as you install more memory is why and your system they way its oconfigured my not be able to run DDR2-800 with 4 modules installed. Link to comment Share on other sites More sharing options...
Diamondsleeper Posted September 26, 2007 Share Posted September 26, 2007 Is that another way of saying you are creating a bottle neck if you run that much ram that fast? It feeds more data then the system can handle? I'm trying to learn more. Thanks. Randy Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted September 26, 2007 Corsair Employees Share Posted September 26, 2007 More or less kind of yes, you might watch the Memory Basics Presentation I think that will help answer some of your questions! Link to comment Share on other sites More sharing options...
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