Diem Posted October 21, 2004 Posted October 21, 2004 I have a 1Gb set of Geil Ultra-X (2x 512Mb) in the DFI Lanpart UT nF3 250Gb board with an Athlon64 3400+ Clawhammer processor. Everything works fine at 2-5-2-2 timings, but as I increase the speed, memtest gives errors in test 5. I have found I can run a single stick of memory at 250MHz with 2.5-6-3-3 timings without a problem. As soon as I add the second stick of memory, test 5 gives errors. I've tested both sticks of memory by themselves, and they work fine. I've tested each slot on the motherboard with single sticks, and they work, so it's not a bad slot on the motherboard. No matter what configuration I put those two sticks in, and what timings I use, I can't get above 230MHz (even at 3-10-4-4). I've increased the voltage all the way to 2.95 without any success, all tests fail at the same spot, 94% through test 5. I do have CPC turned off, so that isn't the problem either. Anyone have any ideas? Quote Share this post Link to post Share on other sites More sharing options...
Popcicle Posted October 21, 2004 Posted October 21, 2004 Yeah.... I have an idea. I hate test #5. Actually the memory controller integrated on the CPU is the bottleneck and causing the problem. This is found by using 2 sticks of 512 mem. and then running up the HTT speed until the memory controller just can't handle all the data at the faster speeds. Lower the LDT setting and see if it will help. If it's set at AUTO then try something like 2 and then work up if this helps. And in memory timings check and see where the Drive Strength is set. You have an option of 1 thru 4. Try AUTO first and then 3 or 4... then maybe 1 or 2. This setting seems to be different for everybody. If it doen't like a given setting the worst that will happen is it won't boot and you'll have to clear cmos. Good Luck. Pops. Pops. Quote Share this post Link to post Share on other sites More sharing options...
Diem Posted October 22, 2004 Posted October 22, 2004 You've made my month. Modifying the drive strength did the trick, once I set it at 2, the errors disappeared. Now to move on to clocking up the CPU. Thanks a ton. Quote Share this post Link to post Share on other sites More sharing options...
Popcicle Posted October 23, 2004 Posted October 23, 2004 Good Deal Bro.... I have to use a Drive Strength Setting of 1. Understanding that everyone's RAM situation is different and it's not a "one size fits all" situation here is something else I found while chasing errors in Test #5: TRC set at 8 TRFC set at 12 Gives me mem errors. TRC set at 7 TRFC set at 17 Runs clean. So playing with TRC and TRFC settings can help a guy. One thing I found is Sista sure likes TRC running at 7. And a huge benefit I found (as I was trying to not run everything set at AUTO) is I set Tref at 3120 and bingo! Tref set at 3120 = the full 200mhz setting for memory. There are options like 166 and 133. So it tells me that AUTO may furnish one of these weaker settings. And this all comes in to play even without a guy running a divider. Example: with Tref setting at AUTO and running 3dMark2001 I was benching 27501. With no other change except Tref the next bench is 27979. A gain of 478 so this proves that AUTO is not always best it's just a matter of tinkering around. Drive on Sista. It ain't no hill for a climber. Pops. Quote Share this post Link to post Share on other sites More sharing options...
ViperJohn Posted October 24, 2004 Posted October 24, 2004 Originally posted by Popcicle Yeah.... I have an idea. I hate test #5. Actually the memory controller integrated on the CPU is the bottleneck and causing the problem. This is found by using 2 sticks of 512 mem. and then running up the HTT speed until the memory controller just can't handle all the data at the faster speeds. Lower the LDT setting and see if it will help. If it's set at AUTO then try something like 2 and then work up if this helps. And in memory timings check and see where the Drive Strength is set. You have an option of 1 thru 4. Try AUTO first and then 3 or 4... then maybe 1 or 2. This setting seems to be different for everybody. If it doen't like a given setting the worst that will happen is it won't boot and you'll have to clear cmos. Good Luck. Pops. Pops. Dang Pop if ya hate test 5 you must really detest test 8. You can loop 5 until the cows home and still go down in flames in test 8. Viper Quote Share this post Link to post Share on other sites More sharing options...
Popcicle Posted October 24, 2004 Posted October 24, 2004 /whisper mode/ don't even bring up test #8. the only thing that p's me off worse than that one is prime. Quote Share this post Link to post Share on other sites More sharing options...
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