El Barto Posted January 18, 2008 Share Posted January 18, 2008 'Ello, About a year ago I got 2GB matched pair (1GB each) Corsair Dominator XMS2 (CM2X1024-6400C4D) RAM for my then new PC and left if running at SPD settings. Yesterday I received a 2GB matched pair (1GB each) Corsair XMS2 (CM2X1024-6400C4DHX) and put it into my PC to make it up to 4GB. I then tried to manually change the RAM timing ins hte BIOS because they were running at 5-5-5-18 when it's stated it can run at 4-4-4-12 which is what I tried changing to. This for some reason though caused my computer to start but display nothing on the screen and I had to clear the CMOS inorder to get my computer booting again. Is there something I am doing wrong? Or is there a problem with the RAM? Thank you in advance, El Barto Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted January 18, 2008 Corsair Employees Share Posted January 18, 2008 Please make sure that you have the latest Bios version and then load setup/optimized defaults and set the Dim Voltage to 2.1 volts (+.2 Volts W/Giga-Byte) and then set the timings manually to the tested settings for the specific module you have, or if you have Value Select "BY SPD" and then test the module/'s one at a time with http://www.memtest.org! If you still get errors, please follow the link in my signature “I think I have a bad part!” and we will be happy to replace them or it! However, if you get errors with both modules that would suggest some other problem and I would test them in another system or MB to be sure. In addition, with some MB's (Mostly ASUS) you have to disable legacy USB in the bios when running any memory test. Link to comment Share on other sites More sharing options...
El Barto Posted January 30, 2008 Author Share Posted January 30, 2008 'Ello, Thank you for the reply, I have not tried memory test yet but I have gotten another motherboard, I did have the AB9 Pro now I have the P5K Premium. This seems to have helped because now when I have just the two Corsair Dominator XMS2 (CM2X1024-6400C4D) in there I can get them to run at 4-4-4-12 with one of them in Channel 1 and the other in Channel 2. However when I move them both into channel 1 and then add both sticks of Corsair XMS2 (CM2X1024-6400C4DHX) into channel two with these settings it Blue Screen of Deaths me shortly after booting into Windows. The settigns I am using are as follows: CAS Latency: 4 RAS to CAS Delay: 4 RAS PRE Time: 4 RAS ACT Time: 12 RAS to RAS Delay: Auto (I couldn't work out what to set this to but the computer sets it to 3 on Auto) REF Cycle Time: (I couldn't work out what to set this to but the computer sets it to 42 on Auto) Write Recovery Time: 5 Write to Read Delay: (I couldn't work out what to set this to but the computer sets it to 3 on Auto) Read to PRE Time: 15 FSB Termination Voltage: 1.50V DRAM Voltage: 2.10V NB Voltage: 1.70V SB Voltage: 1.20V I got those settings from http://www.houseofhelp.com/forums/showthread.php?t=54052 it's the Twin2x2048-6400C4D I used for the settings. Some main question are, can I even use these two types of RAM together on this motherboard? The only reason I got the second set slightly differet was because I couldn't find the original set I got anywhere any more. The other thing is would you know what I should set the timings to that I currently have set to Auto? Or have I got something wrong on the timings anyway? I know it could be a problem with the RAM and I will run a memtest tomorrow hopefully but I was hoping that it would be something els I've done wrong so I can fix it without having to sent it off. Thank you in advance, El Barto. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted January 30, 2008 Corsair Employees Share Posted January 30, 2008 With 4 modules the memory frequency should be set to DDR667. Link to comment Share on other sites More sharing options...
El Barto Posted January 30, 2008 Author Share Posted January 30, 2008 With 4 modules the memory frequency should be set to DDR667. 'Ello, Thank you for the speedy reply, especialy for the time of day (well where I am anyway). I tried setting the DRAM Frequency to DDR2-667 and it lasted a short while but unfortunatly it still BSODed on me, I then went back into the BIOS to check the settings and noticed the REF Cycle Time had changed to 32 even though it was still set to auto so I tried putting it back to 42 manually which only caused it to BSOD much sooner. After this I tried enabling a setting in the BIOS called DRAM Static Read Control which had previously been set to Auto and setting the REF Cycle Time back to Auto, this however just caused the computer to reboot without any BSOD. I was thinking maybe the RAS to RAS Delay, REF Cycle Time and Read to Write Delays in the DRAM options might have something to do with it as they are currently set to Auto but I'm not sure what I should manuall set them to Thank you again for all you help, atleast I am slightly closer because the two Corsair Dominator XMS2 (CM2X1024-6400C4D) will run at 4-4-4-12 but no when the Corsair XMS2 (CM2X1024-6400C4DHX) is in there as well. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted January 30, 2008 Corsair Employees Share Posted January 30, 2008 If you are running 4 modules I would suggest loading setup defaults and set the memory frequency at DDR667 then set the memory Voltage to 2.1 Volts and set the NB/MCH Voltage to +.05 Volts and set TRC to 24 and set the command Rate to 2t if its listed and just let the BIOS set the other timings. Then you should be using http://www.memtest.org to test the system. In addition, with some MB's (Mostly ASUS) you have to disable legacy USB in the bios when running any memory test. Also You'll need to install MS patch 929777 from Microsoft for more than 3 GIG in Win Vista. You can search for it at http://www.microsoft.com. Link to comment Share on other sites More sharing options...
El Barto Posted January 31, 2008 Author Share Posted January 31, 2008 'Ello, I just got 'round to runnng a MemTest. I did each stick of memory separatly and they were always placed in Slot 1 in Channel A, the settings I used was to set everything to auto. Two of the sticks of RAM had problems according to the memory testing program you recomended. Although, just my luck that it was one memory stick from each pack of two that has a problem, so one Corsair Dominator XMS2 (CM2X1024-6400C4D) and one Corsair XMS2 (CM2X1024-6400C4DHX) has a problem. If required I can upload pictures of it as I took photos but haven't gotten them off my camera yet. Should I try testing them after manually setting their settings? Although I would have thought it would make no difference as one stick from each pack has the problem and one doesn't when set to auto. What do I do next, sould I return it to the company I purchased them off or back to Corsair? If I need to return it to you, do I get a replacement or a refund? Because the Corsair Dominator XMS2 (CM2X1024-6400C4D) I don't think is sold any more as I couldn't find it anywhere which s why I got the Corsair XMS2 (CM2X1024-6400C4DHX) for my memor upgrade if it was a replacement I recieved what would I get? How long are these memory modules guaranteed for? The Corsair Dominator XMS2 (CM2X1024-6400C4D) I purchased almost a year ago now. Thank you again for all the help and sorry for all the questions but I cold do with knowing about them before I go around returning things. Link to comment Share on other sites More sharing options...
El Barto Posted January 31, 2008 Author Share Posted January 31, 2008 'Ello, Sorry about the double post but I could see an edit button and was wondering would I need to return the pair of sticks that came in the pack or would I need to just return the individual sticks that are not working. Also I tried installing that Windows Vista update but it said it did not apply to my system so I guess I don't need it then? Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted January 31, 2008 Corsair Employees Share Posted January 31, 2008 We have a lifetime warranty on all of our memory modules, and what were the exact settings you had set for both CPU and memory and on what test did you get errors? Link to comment Share on other sites More sharing options...
El Barto Posted February 7, 2008 Author Share Posted February 7, 2008 We have a lifetime warranty on all of our memory modules, and what were the exact settings you had set for both CPU and memory and on what test did you get errors? 'Ello, Sorry for taking so long to reply to this but I got a bit bogged down with work for a while. I had all the settings set to auto and in CPU-Z is says: CPU Core Voltage: 1.2V Core Speed: 2400HMz Multiplier x9.0 Bus Speed 267.3MHz Rated FSB: 1069.1MHz Memory DRAM Frequency: 400MHz DC Mode: Symmetric FSB:DRAM: 2:3 CAS: 5 RAS to CAS: 5 RAS: 5 Cycle Time: 18 Command Rate 2T Is there anything else you would like to know? I could always go into the BIOS and put down the settings it states it is using in there as well. Do you think there is a fault? Or do I need to manually change the settings? I hope it is the latter as I would rather it be me getting something wrong than having to return the RAM. Thank you again, El Barto. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted February 8, 2008 Corsair Employees Share Posted February 8, 2008 Try setting the TRC setting to 24 Manually and then see if the system is stable with http://www.memtest.org , if not with all four installed set the memory frequency to DDR667/333 MHz. Also there was a new BIOS that was Beta what MB BIOS Version are you using? Link to comment Share on other sites More sharing options...
El Barto Posted February 9, 2008 Author Share Posted February 9, 2008 Try setting the TRC setting to 24 Manually and then see if the system is stable with http://www.memtest.org , if not with all four installed set the memory frequency to DDR667/333 MHz. Also there was a new BIOS that was Beta what MB BIOS Version are you using? 'Ello, Setting the tRC? My motherboard doesn't seem to have that option, is there anything else that it maybe called instead? [EDIT] The BIOS version I am using is 0504, build date 12/10/07 I just thought it would help if I listed the settings I do have on my BIOS to change the RAM and what they are all currently set to: DRAM frequency: Auto DRAM Command Rate: Auto CAS [tCL]: Auto (5) RAS to CAS Delay [tRCD]: Auto (5) RAS Precharge Time [tRP]: Auto (5) RAS Activate to Precharge Time [tRAS]: Auto (18) RAS to RAS Delay [tRRD]: Auto (3) Refresh Cycle Time [tRFC]: Auto (42) Write Recovery Time [tWR]: Auto (6) Write to Read Delay [tWTR]: Auto (3) Read to Precharge Time [tRTP]: Auto (3) DRAM Static Read Control: Auto DRAM Voltage: 2.10V I just did a memtest again on each module separately and let it run through three passes but set tCL, tRCD & tRP to 4 and tRAS set to 12 manually and left the rest to auto, three of the modules came up with no errors but one of them came up with a few. I then tried the same set up in a Dual Channel configuration with two of the memory modules that had no errors at the same time (I used the Corsair XMS2 CM2X1024-6400C4DHX sticks) and ran it for about two and a half hours and got one error. I hope this helps in some way. [/EDIT] Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted February 11, 2008 Corsair Employees Share Posted February 11, 2008 Do you have the latest BIOS and did you load setup defaults before you set the tested settings? And what test in http://www.memtest.org Ver. 2.0 did you get errors on? And the setting TRC should be listed where the memory timings are but you might have to scroll down to see it. Link to comment Share on other sites More sharing options...
El Barto Posted February 20, 2008 Author Share Posted February 20, 2008 Do you have the latest BIOS and did you load setup defaults before you set the tested settings? And what test in http://www.memtest.org Ver. 2.0 did you get errors on? And the setting TRC should be listed where the memory timings are but you might have to scroll down to see it. 'Ello, Once again sorry for the late reply, but I keep getting given lots of work to do :(. Yes I am using the latest version of the BIOS Build 0504 which I do not beleive is a Beta either as there is no indication of such on their website. Well I can't see a setting for the (Row Cycle Time) tRC but there is one for the Refresh Cycle Time (tRFC) which I could manually set instead. I didn't test it with version 2.0 it was with v1.70 (didn't notice v2.0 was out) but I shall run the tests again shortly with v2.0 and post the results back here, also I didn't do the load defaults things before performing the tests last time. Thank you again for all the help, El Barto. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted February 20, 2008 Corsair Employees Share Posted February 20, 2008 Did you set the memory Frequency at DDR667? Link to comment Share on other sites More sharing options...
El Barto Posted February 20, 2008 Author Share Posted February 20, 2008 Did you set the memory Frequency at DDR667? No I had it at DDR800 before when I tested it, have yet to test it since my last reply. I thought it only needed to be at DDR 667 with all four sticks in? I was testing them seperatly at DDR 800. Also about the tRC thing I'm sure the setting isn't there I can provide a picture if you wish but there is a tRFC if you want me to set that? Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted February 20, 2008 Corsair Employees Share Posted February 20, 2008 Oh I see, so are they failing http://www.memtest.org one module at a time and if so on what test? In addition, with some MB's (Mostly ASUS) you have to disable legacy USB in the bios when running any memory test. Link to comment Share on other sites More sharing options...
El Barto Posted February 20, 2008 Author Share Posted February 20, 2008 Oh I see, so are they failing http://www.memtest.org one module at a time and if so on what test? In addition, with some MB's (Mostly ASUS) you have to disable legacy USB in the bios when running any memory test. 'Ello, I can't remember what test they failed on but I am just going to run MemTest again on each stick individually now with the settings stated below and then post back the results. DRAM frequency: Auto (400MHz) DRAM Command Rate: Auto CAS [tCL]: Auto (5) RAS to CAS Delay [tRCD]: Auto (5) RAS Precharge Time [tRP]: Auto (5) RAS Activate to Precharge Time [tRAS]: Auto (18) RAS to RAS Delay [tRRD]: Auto (3) Refresh Cycle Time [tRFC]: Auto (42) Write Recovery Time [tWR]: Auto (6) Write to Read Delay [tWTR]: Auto (3) Read to Precharge Time [tRTP]: Auto (3) DRAM Static Read Control: Auto DRAM Voltage: 2.10V Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted February 20, 2008 Corsair Employees Share Posted February 20, 2008 With one module at a time they should run with these settings: DRAM frequency: Auto (400MHz) DRAM Command Rate: 2T CAS [tCL]: (4) RAS to CAS Delay [tRCD]: (4) RAS Precharge Time [tRP]: (4) RAS Activate to Precharge Time [tRAS]: (12) RAS to RAS Delay [tRRD]: Auto Refresh Cycle Time [tRFC]: Auto Write Recovery Time [tWR]: Auto Write to Read Delay [tWTR]: Auto Read to Precharge Time [tRTP]: Auto DRAM Static Read Control: Auto DRAM Voltage: 2.10V Link to comment Share on other sites More sharing options...
El Barto Posted February 21, 2008 Author Share Posted February 21, 2008 With one module at a time they should run with these settings: DRAM frequency: Auto (400MHz) DRAM Command Rate: 2T CAS [tCL]: (4) RAS to CAS Delay [tRCD]: (4) RAS Precharge Time [tRP]: (4) RAS Activate to Precharge Time [tRAS]: (12) RAS to RAS Delay [tRRD]: Auto Refresh Cycle Time [tRFC]: Auto Write Recovery Time [tWR]: Auto Write to Read Delay [tWTR]: Auto Read to Precharge Time [tRTP]: Auto DRAM Static Read Control: Auto DRAM Voltage: 2.10V 'Ello, I just tried running MemTest v2.0 with the Corsair Dominator XMS2 (CM2X1024-6400C4D) at the memory settings you suggested one at a time and there is something very wrong. On the first stick I tested on 3 it take up with a great many errors, I stopped it at about 40,000 errors (yes that wasn't a type error) and I will post the picture I took of it straight after this post. The second stick I tried had the exact same problem on test 6, I'm sure there is something very wrong here because last time I tested these there was no where near this many errors. Also I did disable USB legacy support as I am running an Asus motherboard. Could use advice me on what to do next? [EDIT] Picture of RAM stick #1 http://www.codingcheetah.net/DSCF0003.JPG Picture of RAM stick #2 http://www.codingcheetah.net/DSCF0005.JPG [/EDIT] Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted February 21, 2008 Corsair Employees Share Posted February 21, 2008 Let's get them replaced, please use the On Line RMA Request Form and we will be happy to replace them. Link to comment Share on other sites More sharing options...
El Barto Posted February 21, 2008 Author Share Posted February 21, 2008 Let's get them replaced, please use the On Line RMA Request Form and we will be happy to replace them. 'Ello, Thank you for all your help, shame it was a problem with the RAM was kinda hoping to get it working with out having to replace it. Also do you know what will happen, will I get a replacement or refund? Also as the RAM I will be returning I think are no longer stocked (I couldn't find them any where) what will happen if it is a replacement? Did you notice that in those screen shots the part of memory that had a problem was 4095? I only put a 1GB stick in there at any one time. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted February 21, 2008 Corsair Employees Share Posted February 21, 2008 Also do you know what will happen, will I get a replacement or refund? Also as the RAM I will be returning I think are no longer stocked (I couldn't find them any where) what will happen if it is a replacement? I am sorry but you will need to talk to customer service to get these answers. Please call our Customer Service at 888-222-4346 or 510-657-8747 Ext "0" and they will help you solve the problem, and our hours are from 7:30 AM to 4:30 PM Pacific Time Monday through Friday excluding holidays! Link to comment Share on other sites More sharing options...
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