WizZard Posted June 3, 2005 Share Posted June 3, 2005 I have two sets of TWINX1024-4400C25 (2GB total). I originally bought them as they got rave reviews and were recommended as "Best for Overclocking" for my board. I got two sets so I could build a second system later. I ran all four for over a month with my 3200+ Winchester @ 2T (memory controller limitation). Now I've bought a Venice 3800+ and sold my Winnie (bad OC'er) and want to overclock with just one set installed (1gb). I have one bad set, and neither will run stable in windows. Memtest v1.55 When I say not stable in windows I mean that they will not complete Super Pi 32m, Prime95 24hrs, and/or gaming tests. For these tests my CPU is clocked both to 2.2Ghz (275x8), and separately to 2.475Ghz (275x9). I have found that neither set will run stable in Windows with the rated timings/or looser. Bad set: Rated Settings: 275mhz, 2.5-4-4-8 Both sticks test perfectly through memtest singly, however in Dual channel mode there are two errors on test #6 and 35 errors in test #8 Not stable in Windows at all. Not so Bad set: Rated Settings: 275mhz, 2.5-4-4-8 Both sticks test perfectly through memtest singly, and in Dual Channel mode. However these are not stable in Windows. Random BSOD's and lockups, both on startup and in applications. My Venice 3800+ can reach 2.75Ghz very comfortably (275x10) and I have pushed it as far as 2.9Ghz on air, so it's not a chip limitation. I have tried settings found in this forum and others (DFI-street) and still cannot get this RAM stable. I do not want to run at 2T, I didn't pay €280 per gig to run at that command rate. So RAM Guy, can you help me? What settings can you give me that will work with my board and this RAM? And can you help me RMA the bad set (I'm located in Ireland). All tests performed with BIOS: 5/10-3 beta, 3/16, and 3/10 final. My pertinent hardware follows: DFI LanParty nF4 Sli-DR (BIOS: 5/10-3) Athlon64 3800+ Venice 2x512mb Corsair XMS 4400C25 (TCCD) 1:1 Dual XFX 6800GT 2x WD Raptor 36.4GB RAID 0 Enermax Noisetaker 600W SLi Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted June 3, 2005 Corsair Employees Share Posted June 3, 2005 Please make sure you have the latest BIOS installed for your MB (download the Beta version) and load optimized defaults settings, and try the following BIOS settings; TwinX512 or Twinx1024-4400C25 Genie BIOS/DRAM Configuration DRAM Frequency Set: 1:1 or 400MHz or 200 (if option are 133/166/200) Command per Clock: Disabled SDRAM CAS Latency: 2.5T SDRAM RAS to CAS Delay (tRCD): 4T SDRAM Row Precharge (tRP): 4T SDRAM Active to Precharge Delay (tRAS): 8T And leave the rest at AUTO setting Genie BIOS FSB BUS Frequency: 275 LDT/FSB Frequency ratio: 4X LDT Bus Transfer Width: 16 16 CPU/FSB Frequency ratio: Auto PCI Ex: 100 K8 cool N’ quiet: Disable CPU VID Start Up Value: 1.55 CPU VID Control: 1.55 CPU VID Special Control: Auto Chipset Voltage Control: 1.8 DRAM Voltage Control: 2.8 PC Health Status: Make sure that all temperature is set at 25 degree C All other settings are motherboards defaults Then please test them one at a time with http://www.memtest.org and let’s make sure it's not some other issue! I would run the test for at least 2-3 passes to be sure! Link to comment Share on other sites More sharing options...
WizZard Posted June 3, 2005 Author Share Posted June 3, 2005 No offense but that's a copy-paste of a reply on another thread just a few lines down the page. As I said I do not want to run at 2T so Command per Clock: Disabled is no good for me! As I said I did not pay big bucks for this RAM to not run at 1T. Memory designed for OC'ing shouldn't have to. And what about the bad pair? I have run all these tests from that previous post of yours so these settings have been tried (albeit with 1T timing). Please make sure you have the latest BIOS installed for your MB (download the Beta version) and load optimized defaults settings, and try the following BIOS settings; TwinX512 or Twinx1024-4400C25 Genie BIOS/DRAM Configuration DRAM Frequency Set: 1:1 or 400MHz or 200 (if option are 133/166/200) Command per Clock: Disabled SDRAM CAS Latency: 2.5T SDRAM RAS to CAS Delay (tRCD): 4T SDRAM Row Precharge (tRP): 4T SDRAM Active to Precharge Delay (tRAS): 8T And leave the rest at AUTO setting Genie BIOS FSB BUS Frequency: 275 LDT/FSB Frequency ratio: 4X LDT Bus Transfer Width: 16 16 CPU/FSB Frequency ratio: Auto PCI Ex: 100 K8 cool N’ quiet: Disable CPU VID Start Up Value: 1.55 CPU VID Control: 1.55 CPU VID Special Control: Auto Chipset Voltage Control: 1.8 DRAM Voltage Control: 2.8 PC Health Status: Make sure that all temperature is set at 25 degree C All other settings are motherboards defaults Then please test them one at a time with http://www.memtest.org and let’s make sure it's not some other issue! I would run the test for at least 2-3 passes to be sure! Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted June 3, 2005 Corsair Employees Share Posted June 3, 2005 Well unfortunately you can not do that, unless you are willing to set your CPU frequency at 274 or Hypertransport at 3X then you can run it at 1T. In addition, what kind of cooling system do you have? Link to comment Share on other sites More sharing options...
WizZard Posted June 3, 2005 Author Share Posted June 3, 2005 Well unfortunately you can not do that, unless you are willing to set your CPU frequency at 274 or Hypertransport at 3X then you can run it at 1T. In addition, what kind of cooling system do you have? Well if those settings work for me then I may try them. It will limit me though. How can Corsair sell enthusiast RAM that has to run at 2T on Athlon64 boards, when the performance hit (of 2T) on such systems is well known? Cooling system on the CPU is Zalman CNPS Cu 7000, in a Wavemaster case with a papst and panaflo fan blowing in on the RAM and graphics cards. Avg ambient temps are in the thirties for all components. RAM never gets hot to the touch. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted June 3, 2005 Corsair Employees Share Posted June 3, 2005 Well the Athlon 64 maximum Hypertransport will be 1100MHz, which at Default is running at 1000 MHz i.e. 200 (CPU Freq.) x 5X HT will give you 1000MHz. Now if end user wanted to over clock and run the HT at 5X, then the maximum that it can run is 220MHz but if CR (Command Rate) is set to 1T, then it will be 219 since setting Command Rate to 1T is like over clocking the system to an extra 1MHz frequency without physically seeing it on the BIOS or system setting. To sum things up 275 + 1T CR = theoretically running at 276 which will be over the HT frequency limitation if set at 4X so therefore it has to be either 274 or 3X HT frequency. Hopefully this answers your question. Link to comment Share on other sites More sharing options...
WizZard Posted June 4, 2005 Author Share Posted June 4, 2005 Well the Athlon 64 maximum Hypertransport will be 1100MHz, which at Default is running at 1000 MHz i.e. 200 (CPU Freq.) x 5X HT will give you 1000MHz. Now if end user wanted to over clock and run the HT at 5X, then the maximum that it can run is 220MHz but if CR (Command Rate) is set to 1T, then it will be 219 since setting Command Rate to 1T is like over clocking the system to an extra 1MHz frequency without physically seeing it on the BIOS or system setting. To sum things up 275 + 1T CR = theoretically running at 276 which will be over the HT frequency limitation if set at 4X so therefore it has to be either 274 or 3X HT frequency. Hopefully this answers your question. Right, I tried all those settings you gave me and still no difference. It will pass memtest but is not stable in windows - all sorts of BSODs. And this was with the good pair! So, can I RMA the one pair that doesn't pass memtest? And does it sound like the second pair is faulty, or is it settings? Link to comment Share on other sites More sharing options...
WizZard Posted June 7, 2005 Author Share Posted June 7, 2005 Tried with 2T timings over the weekend and still no stability in windows. I'm going to fill out an RMA form for each pair of sticks if you have no more, better suggestions RAM GUY? Right, I tried all those settings you gave me and still no difference. It will pass memtest but is not stable in windows - all sorts of BSODs. And this was with the good pair! So, can I RMA the one pair that doesn't pass memtest? And does it sound like the second pair is faulty, or is it settings? Link to comment Share on other sites More sharing options...
WizZard Posted June 8, 2005 Author Share Posted June 8, 2005 Tried with 2T timings over the weekend and still no stability in windows. I'm going to fill out an RMA form for each pair of sticks if you have no more, better suggestions RAM GUY? RAM GUY. Before I defect to another brand of memory that will be stable in Windows at the specified timings can you (or your technicians) have a look at the BIOS on the DFI board, specifically the DRAM settings page. There are quite a lot of settings there. With some of them on auto the machine will not boot, and with others it will crash out on loading windows. Now, if you could please find out what exact timings that will work, and pass SuperPi, Prime etc, in Windows it would be great, perhaps using the most recent BETA BIOS, 510-3 (-1 and -2 will fail to boot with this RAM). This would help a lot of users of these boards and this "Best Overclocking" RAM. I know of 4 people who have contacted me via forums to see what settings I use to get this memory stable, and I'm sick of telling them that it's not stable - at all. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted June 8, 2005 Corsair Employees Share Posted June 8, 2005 I am sorry but if memtest found no problems at all with the memory module then I would suspect or I would recommend you look at other hardware peripheral on your system; since I am afraid to tell you this, but the problem is not coming from the memory module. You have to understand that the only error message Windows will produce or generate on their O/S will be memory error; it will never tell you that you have a bad board, CPU, video card, etc... It will always point it to the memory, but the problem could be coming somewhere else. Link to comment Share on other sites More sharing options...
WizZard Posted June 8, 2005 Author Share Posted June 8, 2005 I am sorry but if memtest found no problems at all with the memory module then I would suspect or I would recommend you look at other hardware peripheral on your system; since I am afraid to tell you this, but the problem is not coming from the memory module. You have to understand that the only error message Windows will produce or generate on their O/S will be memory error; it will never tell you that you have a bad board, CPU, video card, etc... It will always point it to the memory, but the problem could be coming somewhere else. Whilst I do understand that, what about the memory pair that fails memtest on Dual Channel mode, like I specified in my first post? I can understand if it's a memory settings problem, what I can't understand is your reluctance to give me the correct settings for what is a very common board/RAM/CPU configuration. And why is windows stable when used with 2x 256mb Corsair 3200 memory? Why isn't my other hardware giving problems then? I do understand that it is possibly other hardware, but I have tried to isolate everything, and still come down to the fact that the only time my machine crashes is with either pair of this RAM. If Corsair can run it, could you please tell me the settings! Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted June 8, 2005 Corsair Employees Share Posted June 8, 2005 We already gave you the settings presiously. But I have no problem replacing the modules if you want to try that. But from what you have posted I would suspect some other problem. Please follow the link in my signature “I think I have a bad part!” and we will be happy to replace them or it! Link to comment Share on other sites More sharing options...
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