Snakefood Posted June 13, 2009 Share Posted June 13, 2009 Hi...hoping you guys can assist me... I've got 2 kits of CM2x2048-8500C5 (4 x 2GB total) and am having some problems. My pc seems to be pretty unstable, it boots and runs fine, but I have issues installing games, or trying to extract (winrar) large files. I get errors stating files are currupt, but if i extract these same files on another pc, they extract fine. I was running vista x64, but installed XP x64 last night thinking it might be driver issues. Is there any known issues with this board and my ram? When I run cpu-z it shows my ram as running @ 800MHz, what settings in my BIOS should I set to try and run it @ 1066, if this os going to be possible. Many thanks if anyone could assist. :) Link to comment Share on other sites More sharing options...
Wired Posted June 13, 2009 Share Posted June 13, 2009 What voltage are you running the memory at? Note that since the 2 pairs aren't packaged together, there's no guarantee you can run them together, let alone at full speed. Most memory controllers don't like running all memory slots full and at full speed. Link to comment Share on other sites More sharing options...
Snakefood Posted June 13, 2009 Author Share Posted June 13, 2009 Running them @ default settings, 1.8v Link to comment Share on other sites More sharing options...
Wired Posted June 13, 2009 Share Posted June 13, 2009 Check the label. They require 2.1v or 2.2v depending on the version. Link to comment Share on other sites More sharing options...
Snakefood Posted June 13, 2009 Author Share Posted June 13, 2009 Ahhh... Label says 2.10V ver4.1 WIll set voltage in bios manually; should I set clock @ 800 or 1066? Link to comment Share on other sites More sharing options...
Wired Posted June 13, 2009 Share Posted June 13, 2009 Go with 800 at first. Assuming each pair is the same version, it should be stable, and then you can try for 1066. Link to comment Share on other sites More sharing options...
Snakefood Posted June 13, 2009 Author Share Posted June 13, 2009 Cool, will do some tweaking &testing. Is there any decent app out that can test 8GB of ram for stability? Edit: I've been running memtest (windows version) and testing the memory, 1 kit at a time. On both kits I get errors, and the fact that I always get the same amount of errors (16) is making me think maybe this ram is not fully compatible with this board? Am I missing anything here? Link to comment Share on other sites More sharing options...
Snakefood Posted June 15, 2009 Author Share Posted June 15, 2009 Update: I have contacted the suppliers where I bought this memory from, and they are currently saying that will not accept it back if it is not defective. Could you please let me know of a board that this memory is certified to run @ 1066 in? Ta Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted June 15, 2009 Corsair Employees Share Posted June 15, 2009 What are the BIOS settings you had set when you tested them and did you disable Legacy USB in the BIOS? Link to comment Share on other sites More sharing options...
Snakefood Posted June 15, 2009 Author Share Posted June 15, 2009 Other than setting the voltage to 2.1V, all other settings are set to auto. I've not turned off Legacy USB, didn't think that would make any difference. I will try and post back if I still get errors Edit: I set Legacy USB to disabled, I still get errors. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted June 15, 2009 Corsair Employees Share Posted June 15, 2009 Please make sure that you have the latest bios and load setup defaults and then set the memory Voltage to 2.1 Volts then set the timings manually to the tested settings for the specific module you have, and test the modules one at a time with http://www.memtest.org to be sure one is not failing. 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. And if they all pass one up With 4 modules I would suggest setting the memory frequency at DDR667 and set the memory Voltage to 2.1 Volts and set the NB/MCH/SPP Voltage to +.2 Volts as well and test the system with http://www.memtest.org. 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...
Snakefood Posted June 15, 2009 Author Share Posted June 15, 2009 OK, I will get these settings done and run a memtest on them. I did run quick tech past two of the sticks, and they both passed. Will get hold of dos based memtest and test all sticks, tbh I think they'll pass tho, as the passed quicktech. Will post back with test results tomorrow eve, uk time :) Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted June 15, 2009 Corsair Employees Share Posted June 15, 2009 NP please let me know! Link to comment Share on other sites More sharing options...
Snakefood Posted June 16, 2009 Author Share Posted June 16, 2009 Update: Yes, I am running latest BIOS. I went into BIOS and set all my timings manually, and tested 2 sticks individually using memtest booting from a usb stick. Both sticks passed individually, but testing the kit was an epic fail. FYI, I am no longer trying to get 4 sticks working, just two. But no luck. The ram supplier has said point blank no, they will not accept the ram back as it is not faulty, so I'm prob going to have to take a major loss and sell it online. :( Am I right now in my assumtion that this memory is purely imcompatible? Today was last day for return of my CPU/MB, so I'm also going to retutn them, and start out with a new kit, go for ddr3. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted June 16, 2009 Corsair Employees Share Posted June 16, 2009 No that would suggest some other problem as these modules are indeed compatible with that MB and if they both pass one at a time but fail when in D/C that would suggest a problem with the MB and I would get it replaced. Link to comment Share on other sites More sharing options...
Snakefood Posted June 16, 2009 Author Share Posted June 16, 2009 OK, well I'm in process of returning the board within DOA period anyway, I wil point out this possible defect to them for testing to prevent asus reselling a dudd. I have a second PC running on a Abit ip35 pro, is this memory compatible in this board? If so, I will carry ot some testing in this board, see if it can run it in pairs? thanks for all the help so far :) Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted June 16, 2009 Corsair Employees Share Posted June 16, 2009 Yes it should work with that MB but it will depend on the CPU speed and with 4 modules DDR667 or DDR800 would be suggested. Link to comment Share on other sites More sharing options...
Snakefood Posted June 17, 2009 Author Share Posted June 17, 2009 Cool, CPU is an Intel E6850 @ 3Gig Link to comment Share on other sites More sharing options...
Snakefood Posted June 17, 2009 Author Share Posted June 17, 2009 Update: I tested 1 kit in the Abit board using metest x86, passed. Have just installed XP x64 onto the abit board, downloading drivers etc now so I can give it a test using all 4 sticks. Will post back soon... :) Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted June 17, 2009 Corsair Employees Share Posted June 17, 2009 NP Just remember to lower the memory frequency to DDR667 when all four modules are installed. Link to comment Share on other sites More sharing options...
Snakefood Posted June 18, 2009 Author Share Posted June 18, 2009 Hi.. I tried to run all four first @ 800MHz, thought it was going to bo OK, I left it running memtest in windows (4 windows to test all ram) overnight, but this morning I had 1 error. This board's biod doesn't allow me to directly set the ddr frequency, instead I have to set as by a ration to the cpu, so currently running @ 340, instead of 333 (1:1). Should I lower my cpu's fsb to set the ram @ 333, or leave it as is? Do I still need to use 2.1V? Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted June 18, 2009 Corsair Employees Share Posted June 18, 2009 I would set the NB/MCH/SPP Voltage to +.2 Volts and see if that helps! Link to comment Share on other sites More sharing options...
Snakefood Posted June 18, 2009 Author Share Posted June 18, 2009 What are these liable to be called in my Abit bios? I looked for them but could not find them; perhaps the abit isn't that equipped for tweaking? leave mem voltage @ 2.1? Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted June 18, 2009 Corsair Employees Share Posted June 18, 2009 NB/MCH/SPP are the same thing just with different chipsets it will be called something different. With some Chipsets mostly early Intel it will just be NB for north Bridge some of the later Intel chipsets will call it MCH for Memory Controller Hub and some Nvidia chipsets will call the memory controller the System Platform Processor SPP. Link to comment Share on other sites More sharing options...
Snakefood Posted June 18, 2009 Author Share Posted June 18, 2009 Got it, spot on, mine was MCH. Have upped it from 1.25 -> 1.44. I also lowered my FSB from 340 to 333, so that my ram runs @ 800, instead of the slightly higher figure. Will set 4 instances of memtest going when I goto bed this eve, see what happens overnight, unless is there a 64-bit memory test that I can use to test 8GB with one process? Link to comment Share on other sites More sharing options...
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