Adamfwm Posted November 23, 2004 Share Posted November 23, 2004 I have two sticks of cmx512-3200c2 that I have used for about 2 years in a motherboard that did not support a 400 mhz fsb so I have been running them at 333 mhz. I recently tried these memory modules in an MSI k8n Neo2 Platinum board with an Fx-53 and they were detected as pc2700. I replaced the Corsair with Ballistix modules and these came up correctly as pc3200. I am now trying the Corsair memory in a new Soyo P4I875P Dragon 2 v1.0 (Black Label) board with a 3.2 GHz Prescott. Again, they are being detected as pc2700. I read that older modules did not have the correct spd info so I manually set the fsb to 200 mhz, and manually set the timings to 2-3-3-6 with the dram multiplier set to auto, but the memory still comes up as ddr 333 and runs at 320 mhz. I've tried swapping the modules in the dimm slots and have tried using dimm slots 2 and 4 as opposed to 1 and 3. I've flashed the bios with the latest update available at Soyo. I am running Windows Xp professional with sp1. Is this the time to get warranty service? Any help would be appreciated. Link to comment Share on other sites More sharing options...
Yellowbeard Posted November 23, 2004 Share Posted November 23, 2004 See if you can also manually set the DRAM multi also. AUTO there will still use the SPD which is what you are trying to work around. I'm not familiar with what bios that SOYO uses but set it to run the RAM at DDR400 or 200mhz same as the CPU. Mike. Link to comment Share on other sites More sharing options...
Adamfwm Posted November 23, 2004 Author Share Posted November 23, 2004 Thanks for the reply and advice. The only options for the dram multiplier are auto, 0.8, 1.25, and 1.33 so that I was assuming "auto" would be 1:1. I am using the stock fan and heat sink, and I built this for my father, so I am reluctant to overclock. He is much more interested in stability and part longevity than a little extra performance. At the same time, I do want the system to run as close as possible to 800 mhz fsb / 400 mhz ddr. Offhand, I can't think of a combination of the above multipliers and a fsb that will get me there, but maybe I am missing something obvious? Thanks again for the info. Link to comment Share on other sites More sharing options...
Yellowbeard Posted November 23, 2004 Share Posted November 23, 2004 SOYO MANUAL On what I think is page 54, what are all of your bios settings in the order they are listed on that page? This is strange, the bios has to offer 1:1 unless it cannot overlook the SPD. Mike. Link to comment Share on other sites More sharing options...
Yellowbeard Posted November 23, 2004 Share Posted November 23, 2004 Also, did you disable the SPD setting for the RAM? Mike. Link to comment Share on other sites More sharing options...
Adamfwm Posted November 23, 2004 Author Share Posted November 23, 2004 Yeah, I disabled the SPD setting in the "advanced DRAM" controls. Set it to manual with 2-3-3-6 timings. The only options I get for the DRAM:CPU ratio (from bottom to top) are auto, 0.8, 1.25, and 1.33. It looks like they added 0.8 from the time that manual was written. Link to comment Share on other sites More sharing options...
Yellowbeard Posted November 23, 2004 Share Posted November 23, 2004 That is bizarre. What it seems like is that the CPU frequency is tied to the RAM SPD even if you disable the RAM SPD. It is still offering a poor range of ratios. However, I'm betting that you can use the 1.25% setting. Also, you might be able to set the CPU FSB to 166mhz, same as the RAM to give you a 1:1 manual setting. Then, try the OCing ratios and see if you can get it all back up to stock speeds. Mike. Link to comment Share on other sites More sharing options...
Adamfwm Posted November 23, 2004 Author Share Posted November 23, 2004 Good ideas. Thanks, I'll give them a try this evening. Link to comment Share on other sites More sharing options...
Adamfwm Posted November 24, 2004 Author Share Posted November 24, 2004 No luck with setting the multiplier to 1.25. The computer wouldn't boot and I had to clear the CMOS. I just ran cpu-z and the memory is definitely being detected as pc2700 despite my setting the timing manually in the bios. The auto dram multiplier is setting the fsb:dram ratio at 5:4 and since I can't force 1:1, I'm at a loss. I'm pretty sure tha my memory is rev 1.1 so I I'm sure this has to do with the spd being wrong, but I can't understand why the board isn't accepting my manual timings. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted November 24, 2004 Corsair Employees Share Posted November 24, 2004 I am sorry the way this platform operates the modules would need to have identical SPD's or the system may not be able to post! If you do try to match the module you have now, please make sure that both modules match in part# and revision. Sorry, but this is a limitation of the memory controller. Link to comment Share on other sites More sharing options...
Adamfwm Posted November 24, 2004 Author Share Posted November 24, 2004 I have two modules that should be the same revision. I'll double check, but I bought them together. I would understand the problems I am having if they are not the same rev. If they are the same, do you see why I can't get them to run at 400 mhz? Thanks for your help. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted November 24, 2004 Corsair Employees Share Posted November 24, 2004 I would maybe ask your reseller if they will let you send these back and just get a Twinx1024-3200C2 set of modules instead. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.