Thor74 Posted April 3, 2006 Share Posted April 3, 2006 I had these modules in my old Intel system running fine at 2-2-2-6-4 on the Asus i875P P4C800E-Dlx board on Dual Channel setup. No problems at all. Now I have a Nforce4 SLI board, the Asus A8N SLI Premium (latest BETA BIOS 1011.066)and when I let everything in AUTO I can run Memtest86+ for an hour without problems, but the timings are really loosen, I know these modules can push better timings than the auto ones from the SPD. My problem is that there are really new timing values for me on the Nforce4 chipset. I have been reading on Adrian's Rojak Pot BIOS guide and could find the meaning of some of these new options but there were some that I didn't find. I tried to set manual timings and now my system doesn't boot (I get the memory fail error from the POST voice). It looks like I am gonna have to clear the CMOS and try again but I would like recommendation for these non-standard timings (I didn't find these timings on the compatibility charts from Ramguy). I am not overclocking, my system is running at 200Mhz. I have a 4200+ X2 Dual Core CPU. These are the names of the timings in BIOS and the "very optimistic" values that I tried (and make the system fail POST): Memory Timing 1T/2T: 1T CAS latency (tcl): 2 RAS to CAS delay (trcd): 2 Row Precharge Time (trp): 2 Row Cycle Time (trc): 7 Row Refresh Cycle Time (trfc): 9 (I have NO IDEA what this is) Write Recovery Time (twr): 2 Read-to-write delay (trwt): 1 I am sure that these values are too aggressive, that's why I am needing advice. I don't like to run these at the AUTO timings, I know they can give more than that. I appreciate your help. Thanks. Link to comment Share on other sites More sharing options...
Corsair Employee RAM GUY Posted April 3, 2006 Corsair Employee Share Posted April 3, 2006 Please load setup defaults and then set these settings and test the modules with http://www.memtest.org. Memory Timing 1T/2T: 2T CAS latency (tcl): 2 RAS to CAS delay (trcd): 3 Row Precharge Time (trp): 2 Row Cycle Time (trc): 6 Row Refresh Cycle Time (trfc):Bios Default/Auto Write Recovery Time (twr): Bios Default/Auto Read-to-write delay (trwt): Bios Default/Auto DDR Voltage: 2.8 Volts Link to comment Share on other sites More sharing options...
Thor74 Posted April 3, 2006 Author Share Posted April 3, 2006 Thanks. I found that the setting that produces the POST error is: Row Refresh Cycle Time (trfc): 9. All the rest can be modified and the PC pass the POST. These are the values that I have set for "all the night" testing with Memtest86+. I guess it is the same to test with this one as with the original Memtest86 isn't it? Last build of the "+" is from january 2005, the original is from november 2004. Anyway, they both share the same core. Memory Timing 1T/2T: 1T CAS latency (tcl): 2 RAS to CAS delay (trcd): 3 Row Precharge Time (trp): 2 Min RAS active time (tras): 6 Row Cycle Time (trc): 8 Row Refresh Cycle Time (trfc): 13 (default) Write Recovery Time (twr): 3 (default) Read-to-write delay (trwt): 1 Let's see tomorrow what the results are. If everything goes ok I will start the Windows installation tomorrow. I have disabled USB Legacy support as others have done with these boards while testing the RAM in memtest86. I have a question Ramguy: Why DDR voltage 2.8 volts? The default on my board is AUTO but I didn't check what is the actual voltage, doesn't it work ok as it is? How much voltage does the board provides at the default value then? I have never modified voltage settings unless I am overclocking, and I am not OC this system, Thanks a lot. Link to comment Share on other sites More sharing options...
Corsair Employee RAM GUY Posted April 3, 2006 Corsair Employee Share Posted April 3, 2006 These modules had a minimum suggested voltage tof 2.75 Volts and 2.8 Would be what I would suggest with this MB. Link to comment Share on other sites More sharing options...
Thor74 Posted April 4, 2006 Author Share Posted April 4, 2006 These modules had a minimum suggested voltage tof 2.75 Volts and 2.8 Would be what I would suggest with this MB. 2.8 is then. It ran memtest86+ for 7 hours without any error with the settings posted before :) I have manually set the voltage to 2.8 and I am ATM running the last memtest before installing the OS. I am wondering: From the modules that Corsair sells now, which ones offer the same characteristics as these 3200LL that are not sold anymore? When I bought this memory (3 years ago) it was top notch on the scale. I guess that it is still very good memory if you are running DDR400, even on newer chipsets no? Thanks a lot for your help Ramguy. Link to comment Share on other sites More sharing options...
Corsair Employee RAM GUY Posted April 4, 2006 Corsair Employee Share Posted April 4, 2006 If you want to go to 2.0 Gig of memory there is only one choice for best performance Twinx2048-3500LLPro would be faster performance and 1.0 Gig modules. Link to comment Share on other sites More sharing options...
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