biohazard2k Posted October 29, 2005 Share Posted October 29, 2005 Hi there, Newegg had a good deal on the same model #'ed memory that I currently had in my system and I thought hey I could upgrade to 2gb memory for not much cash. The old ram I bought years ago is XMS 3200C2 and so is this new stuff I bought... so I thought it should be all good. But no, my old ram is ver. 1.2 and my new stuff is ver 5.2. Whenever I add more than 3 modules in either of my computers this one and a K7 KT600 based motherboard I get lots of errors in memtest. These errors occur in both computers whether or not it's dual or single channel mode. Each of the modules run fine if they're by themselves, or even combined with another one. It just starts getting fritzy when I add a 3rd or 4th one. NOTE: If I lower the fsb of the ram down to 166 or lower the errors stop. But I want to run it at 200, so that isn't an option for me. Is it just not meant to be unless I have the same version of the same memory? Is there any suggestions I can get to run all 4 sticks at dual-channel 400 without any errors? Thx in advance, BioHaz Link to comment Share on other sites More sharing options...
CMC_SAVAGE Posted October 29, 2005 Share Posted October 29, 2005 Is it just not meant to be unless I have the same version of the same memory? All 4 sticks would have to be the same Version#. Link to comment Share on other sites More sharing options...
biohazard2k Posted October 29, 2005 Author Share Posted October 29, 2005 All 4 sticks would have to be the same Version#. Hyper poop... that sux. Hmm so you're telling me that if I order another set of 512's I'd be grand without any problems? BioHaz Link to comment Share on other sites More sharing options...
CMC_SAVAGE Posted October 29, 2005 Share Posted October 29, 2005 Hmm so you're telling me that if I order another set of 512's I'd be grand without any problems? If they end up being the same Version#, you should be ok. Link to comment Share on other sites More sharing options...
biohazard2k Posted October 29, 2005 Author Share Posted October 29, 2005 :[pouts: Eh, I knew I should have just gotten 2, 1gb sticks. BioHaz Link to comment Share on other sites More sharing options...
biohazard2k Posted November 4, 2005 Author Share Posted November 4, 2005 Okay... Can the Athlon64 939 even handle 4, 512mb sticks? :confused: My friend who just bought a new computer with a Epox nForce 4 motherboard a few months ago wanted to upgrade his ram. When he bought it he got 2, 512 Corsair Value Selects. A few months later he bought the same ram to upgrade to 2gb. My question to all of you is... Do any of you have 2gb (4,512 sticks), if so did you buy it at the same time or how did you get it working? HELP!!! Thanks, BioHaz Link to comment Share on other sites More sharing options...
CandyKid Posted November 4, 2005 Share Posted November 4, 2005 Athlon 64 memory controllers have a limitation when it comes to running more than two modules at DDR400. They either set your command rate to 2T or downclock the modules to DDR333 as well. I'd like to tell you what I did, but my system is an Intel and doesn't apply to you! For your setup, try relaxing the latencies to 3-3-3-8 (CAS - RAS to CAS - Row Precharge - Cycle Time) with a VDimm of 2.8 volts and see if that helps. Keep in mind with 4 modules you'll be forced to run at 2T command rate, but they should do DDR400. Unfortunately, as CMC said, this might not work as most of the A64's require all installed memory to be identical. PLUR CK Link to comment Share on other sites More sharing options...
biohazard2k Posted November 4, 2005 Author Share Posted November 4, 2005 Thanks for the prompt and informational reply. So for my friend, so you suggest me trying those timings? Or should I just tell him to eat the 15% restocking fee and go for the two 1gb modules? Bio Link to comment Share on other sites More sharing options...
CandyKid Posted November 4, 2005 Share Posted November 4, 2005 Why not try it first, then if you just can't get it to work, 2 x 1GB would have been the suggested solution for 2GB of memory. PLUR CK Link to comment Share on other sites More sharing options...
judas Posted November 4, 2005 Share Posted November 4, 2005 2x512 xms 3200 xl pro 2225 2t DDR400 2x256 xms 3200 xl pt 2225 well my mixed memory runs Great:D: lost a bit of performance but gained some bandwith bf2 loads and runs great ... Link to comment Share on other sites More sharing options...
CandyKid Posted November 4, 2005 Share Posted November 4, 2005 judas Those modules are both made with Samsung TCCD IC's and modified Brainpower PCB's making them rather close to being identical. Glad you've got them working, but a note on what's happening... You're actually losing memory system performance AND bandwidth. What you're gaining is the ability to precache more information into the RAM rather than using your swap file (much, much slower) and thus BF2 runs/loads faster. PLUR CK Link to comment Share on other sites More sharing options...
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