RAMpower Posted November 26, 2010 Share Posted November 26, 2010 Hi all, first time in my life I got Dominator RAM for my new system. Since day 1 I got stability issues with this setup (German problem desc in detail). I know that this Corsair RAM isn't listed at Asus QVL or Corsair compatiblity list. I shouldn't have bought this RAM... What happens: PC freezes only in idle mode / during normal office work - never during real load (gaming, etc.). Mainboard USB ports become unresponsive, keyboard and mouse fail. Sometimes bluescreens occour (+ usb driver info). Nice problem description which is very similar to mine: link. - most recent Bios installed - fresh install of Win7 - all drivers updates to the most recent - only connected USB keyboard and mouse - and so much more - memtest84+ 4.1 stable: 6 loops - using correct RAM banks in dual channel mode Now I'm experimenting with my RAM Settings in Bios. - Using XMP profile setup: System USB freezes occur - Using AUTO setting: since about 12 hours system is running without freeze. This means nothing, I need some more days :) With AUTO setting the board configure the RAM as follows: 1066 MHz instead 1600 1.5V instead 1.65V 7-7-7-20 instead 9-9-9-24 I'd say that this isn't ok in the medium term as it should at least run at 1333 MHz... I've often read that it's recommended to configure RAM 100% manually. But I'm not sure how to do this with CMP8GX3M2A1600C9. What settings should I try? Thanks in advance and best regards, Felix Link to comment Share on other sites More sharing options...
Wired Posted November 26, 2010 Share Posted November 26, 2010 Try one stick at rated specs. Link to comment Share on other sites More sharing options...
RAMpower Posted November 26, 2010 Author Share Posted November 26, 2010 @Wired: Thanks for the hint! I'll do if the problem comes up again the next days. At the moment I'm trying the following BIOS settings: http://www.bilder-space.de/show_img.php?img=fbd636-1290809957.jpg&size=thumb http://www.bilder-space.de/show_img.php?img=3ef9e4-1290809989.jpg&size=thumb http://www.bilder-space.de/show_img.php?img=259172-1290810024.jpg&size=thumb Are theses manual settings ok or did I forget any other important RAM setting? Thanks in advance and best regards, Felix :laughing: Link to comment Share on other sites More sharing options...
RAMpower Posted November 27, 2010 Author Share Posted November 27, 2010 Using this setting I just got a freeze again: - system ran fine with these settings for about 4 hours - system completely freezed during normal surfing / idle - win7 energy profile: power - ATI CCC setting: default - HDD LED was constantly on, screen was freezed (no black screen), mouse and keyboard freezed - no bluescreen, no entries in event log, no dumps - bios reset itself after reboot I guess I've to wait for the next freeze using these settings. After this I'll try the AUTO setting (1066 MHz) again... What do you recommend ? Now the single RAM test? Thanks in advance and best regards, Felix Link to comment Share on other sites More sharing options...
RAMpower Posted November 27, 2010 Author Share Posted November 27, 2010 Hi there, as I don't see any problems with memtest, I tried windows 7 memory diagn. this night. I selected 'extended' and infinite loops. This morning win7 memory diag. was frozen at 3 loops and 21% and showed no RAM errors. What does this mean? :eek: Link to comment Share on other sites More sharing options...
RAMpower Posted November 27, 2010 Author Share Posted November 27, 2010 Switched back to BIOS AUTO settings as mentioned in post 1: "With AUTO setting the board configure the RAM as follows: 1066 MHz instead 1600 1.5V instead 1.65V 7-7-7-20 instead 9-9-9-24" In Win7 energy safer profile I now have many lags (quite short system hangs) and randomly crashing softwares. What does this mean? Is it possible that my CPU is the cause for all this trouble? Link to comment Share on other sites More sharing options...
RAMpower Posted November 27, 2010 Author Share Posted November 27, 2010 I'm almost out of ideas :( Trying Command Rate Setting 2T now with 1,65V and 1600MHz! My Bios always sets it 1T. Link to comment Share on other sites More sharing options...
Boooooo Posted November 29, 2010 Share Posted November 29, 2010 command rate should be always 2T especially if having compatibility issue. If you still experienced freezes try this test for me please: no memtest86+ but simple resting in bios setting page overnight (or till freeze occurs) Link to comment Share on other sites More sharing options...
RAMpower Posted November 30, 2010 Author Share Posted November 30, 2010 Hi Boooooo, thanks for your feedback! I should have known this before :) I never had this problem before - AUTO settings were fine for me the last PCs I build... Using these settings I still had crashings apps the last days: 1600MHz, 1,65V, CR 2T All kind of apps crashed all of the sudden. A few / hour. But the system itself was kind of stable - no freezes or bluescreens. I guess again a RAM problem. I don't understand why I never see problems during burn in tests or gaming. Now I'm trying these P7P55 Bios Settings - looks promising at the moment: http://www.bilderhost.eu/bild.php/2,10056,img0440FYYO6.jpg http://www.bilderhost.eu/bild.php/2,10057,img0441X217U.jpg http://www.bilderhost.eu/bild.php/2,10058,img0442MX2NO.jpg So I get: http://www.bilderhost.eu/bild.php/10059,ddr133307102.png The next days a different RAM kit (CMX8GX3M4A1333C9) will arrive - this kit is listed at the Asus P7P55 QVL. I'm very curious if these RAM will show no problems at all ... :) Thanks and best regards, Felix Link to comment Share on other sites More sharing options...
Yellowbeard Posted November 30, 2010 Share Posted November 30, 2010 You need to increase the voltage to your memory controller to run 4 modules at more than 1066. Try 1.2v - 1.25v. I think that ASUS calls this voltage QPI DRAM voltage. Link to comment Share on other sites More sharing options...
RAMpower Posted November 30, 2010 Author Share Posted November 30, 2010 @Yellowbeard: Thanks for your help! Sorry for not mentioning it but my troublemaker CMP8GX3M2A1600C9 is 4GB - so I'm using 2x4GB / 2 slots only. Also my board P7P55-E Deluxe does not have QPI DRAM settings :( http://www.bilderhost.eu/bild.php/2,10060,noqpiX9M6C.png Link to comment Share on other sites More sharing options...
Yellowbeard Posted November 30, 2010 Share Posted November 30, 2010 Try 1.2v for IMC Voltage. Link to comment Share on other sites More sharing options...
RAMpower Posted November 30, 2010 Author Share Posted November 30, 2010 Cool - tnx for the hint! I'll do and I'll report back soon :) Link to comment Share on other sites More sharing options...
RAMpower Posted November 30, 2010 Author Share Posted November 30, 2010 Good news - thanks to your hint the system seems running better now. I won't say "perfect" for the next weeks - if then the system still shows no problems then the problem is defeated. I experienced "micro lags" the last days: when opening any application there were tiny "hangings" - opening wasn't "smooth". Today I switched off Win7 superfetch. These lags seem to be gone. So this part of the problem wasn't RAM related... At the moment I'm using these settings: http://bilderhost.eu/bild.php/10084,mem1BZD18.png This is equal to the RAM XMP setting http://bilderhost.eu/bild.php/10085,mem2HOT0H.png I set 1,20V for IMC and 1.65V for RAM in Bios - the board then sets them a little higher which seems to be uncritical. http://bilderhost.eu/bild.php/10086,mem3HLIZR.png And this is the actual result To sum up: - Set IMC to 1,2V, RAM to 1,65V - Set RAM to Command Rate 2T instead of 1T (!) - Deactivate Win7 superfetch if using a fast SSD My Corsair RAM: http://bilderhost.eu/bild.php/2,10077,img62676YR1O.jpg My System: http://bilderhost.eu/bild.php/2,10079,img631409W23.jpg http://bilderhost.eu/bild.php/2,10080,img63319WHSQ.jpg http://bilderhost.eu/bild.php/2,10081,img6363J1LXY.jpg http://bilderhost.eu/bild.php/2,10082,img6380UUDHS.jpg http://bilderhost.eu/bild.php/2,10083,img6381CBXMF.jpg Thanks for your support and best regards, Felix Link to comment Share on other sites More sharing options...
RAMpower Posted December 7, 2010 Author Share Posted December 7, 2010 Hi there, back again :) My Dominator RAM "CMP8GX3M2A1600C9" still isn't stable. Problems described above still occur. I got a second mainboard (same model) which fixed my freezing USB ports. Then I bought a Corsair RAM Kit which is on Asus QVL: CMX8GX3M4A1333C9 DDR3-1333MHz 1,55V CL9 4x2GB. When using my Dominator RAM I'm getting these strange bluescreens: http://bilderhost.eu/bild.php/10240,bluescreen0723Q.png When using the other QVL RAM these bluescreens don't occur. As I tried almost every config with the dominator RAM kit I guess this kit is simply not compatible with my board - true? I just don't understand how a RAM kit can be incompatible with a mainboard :/ With the new Corsair RAM I do have a new problem: 1 second sound freezes (HDMI ATI 5850)... but system does not crash at least :) Thanks and best regards, Felix ps: I guess I'll buy a sandy bridge system next year as my new i7 system is a pure troublemaker... Link to comment Share on other sites More sharing options...
trackrat Posted December 7, 2010 Share Posted December 7, 2010 All modern PCs are sensitive to RAM timings and skew due to the higher frequencies of DDR3 and CPUs. Link to comment Share on other sites More sharing options...
RAMpower Posted December 7, 2010 Author Share Posted December 7, 2010 @trackrat: Thanks for your feedback! So theoretically I should be able to get my Dominator RAM running stable - shouldn't I ? Or are there other things which could lead to a general RAM / mainboard incompatibility - which can't be fixed by the end user? Link to comment Share on other sites More sharing options...
trackrat Posted December 7, 2010 Share Posted December 7, 2010 Any Corsair RAM tested and approved compatible for your CPU should work fine. With Asus however it may take a couple of lifetimes before they provide a proper BIOS to eliminate RAM incompatibility issues. In my experience Asus is very slow to fix mobo issues. :sigh!: Your results may differ? Link to comment Share on other sites More sharing options...
RAMpower Posted December 7, 2010 Author Share Posted December 7, 2010 @trackrat: Ok that could be the problem - named "Asus" :) My mobo is kind of eol so there won't be any RAM compatibility Bios update in the future I guess. If my new Corsair RAM will work fine I'll close this RAM chapter :) So what can I do now with my troublemaking Dominator RAM? I now could sell it but I don't know if this is OK as I had these troubles... The RAM itself isn't faulty I guess? I never saw errors in memtest and other stability tests! Is this enough proof that this RAM kit generally is ok? THANKS! :laughing: Link to comment Share on other sites More sharing options...
Wired Posted December 7, 2010 Share Posted December 7, 2010 To troubleshoot, did you ever try running the 1600 MHz memory @ 1333 MHz? Link to comment Share on other sites More sharing options...
RAMpower Posted December 7, 2010 Author Share Posted December 7, 2010 Hi Wired, thanks for your help. Yes I tried 1333MHz and 1066MHz with my 1600MHz Dominator RAM. But: Then many apps just freezed randomly - almost every app. But no bluescreens... Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.