dboisvert Posted October 22, 2009 Share Posted October 22, 2009 Alright I am using some TWIN2X4096-8500C5 ram in a Asus M4N78Pro motherboard and for some reason when I try to set the ram to 1066, it crashes and will just load the bios again unless I switch it back to 800. When I run it under 800 everything works fine. I have ran Memtest and it crashes (with single stick or both) My computer is not overclocked Link to comment Share on other sites More sharing options...
Gaia Posted October 23, 2009 Share Posted October 23, 2009 Are they TWIN2X4096-8500C5 or TWIN2X4096-8500C5D? Link to comment Share on other sites More sharing options...
dboisvert Posted October 23, 2009 Author Share Posted October 23, 2009 I bought it from newegg... http://www.newegg.com/Product/Product.aspx?Item=N82E16820145215 TWIN2X4096-8500C5 is the model # according to them Link to comment Share on other sites More sharing options...
Gaia Posted October 23, 2009 Share Posted October 23, 2009 I bought it from newegg... http://www.newegg.com/Product/Product.aspx?Item=N82E16820145215 TWIN2X4096-8500C5 is the model # according to them The reason I asked is that I found that my C5D model was rated at 2.1 - 2.2v for the memory voltage. I recommend sending a Tech Express email to Corsair to inquire about the voltage rating. Tell them the version # stamped on the memory. My system was completely unstable before setting the voltage to 2.16v After the change in voltage it's Prime95 stable for 24+ hours. I have an Asus board running a Phenom II 965. Your issue may not be related but it's possible. Link to comment Share on other sites More sharing options...
Wired Posted October 23, 2009 Share Posted October 23, 2009 The voltage required is right on the memory label. Link to comment Share on other sites More sharing options...
Gaia Posted October 23, 2009 Share Posted October 23, 2009 The voltage required is right on the memory label. That's true but my label says 2.1v. When I emailed Tech Express they said it's guaranteed up to 2.2v. 2.16v stabilized the system. They don't tell you that unless you inquire. Link to comment Share on other sites More sharing options...
dboisvert Posted October 23, 2009 Author Share Posted October 23, 2009 Tried upping the voltage as suggested and that didnt work either... im at a loss... Oh and FYI I made sure to turn off legacy usb for the Memtest and that didnt make a difference Link to comment Share on other sites More sharing options...
Gaia Posted October 24, 2009 Share Posted October 24, 2009 Have you tried bumping up the HT voltage? Add .1v. Link to comment Share on other sites More sharing options...
Corsair Employee RAM GUY Posted October 24, 2009 Corsair Employee Share Posted October 24, 2009 Will the system run stable if you set the memory frequency to DDR800? Link to comment Share on other sites More sharing options...
dboisvert Posted October 24, 2009 Author Share Posted October 24, 2009 When I run it under 800 everything works fine. Will the system run stable if you set the memory frequency to DDR800? Sometimes I find reading helpful :) Yes, it runs perfectly stable and even has some headroom for overclocking the processor (I tried it briefly and it oc'd np to 3.6GHz) but that isnt really all the relevant (When I tried 1066 nothing was overclocked and everything was default). Link to comment Share on other sites More sharing options...
Gaia Posted October 24, 2009 Share Posted October 24, 2009 Sometimes I find reading helpful :) Yes, it runs perfectly stable and even has some headroom for overclocking the processor (I tried it briefly and it oc'd np to 3.6GHz) but that isnt really all the relevant (When I tried 1066 nothing was overclocked and everything was default). I suggest bumping the CPU NB voltage to 1.2v. Link to comment Share on other sites More sharing options...
dboisvert Posted October 24, 2009 Author Share Posted October 24, 2009 I suggest bumping the CPU NB voltage to 1.2v. Tried that already and it didnt make a difference. Also I had a friend test it in his system (to make sure it wasnt the motherboard) and it allowed him to boot with 1066 but as soon as he stressed the ram it crashed. The only other thing left now is to RMA it I guess... I was wondering is there anyway I can keep the ram until I get the new stuff because I really cant be without a computer (work). Link to comment Share on other sites More sharing options...
Gaia Posted October 24, 2009 Share Posted October 24, 2009 Tried that already and it didnt make a difference. Also I had a friend test it in his system (to make sure it wasnt the motherboard) and it allowed him to boot with 1066 but as soon as he stressed the ram it crashed. The only other thing left now is to RMA it I guess... I was wondering is there anyway I can keep the ram until I get the new stuff because I really cant be without a computer (work). The CPU NB voltage not the NB voltage, right? Link to comment Share on other sites More sharing options...
dboisvert Posted October 25, 2009 Author Share Posted October 25, 2009 That is correct Link to comment Share on other sites More sharing options...
Gaia Posted October 25, 2009 Share Posted October 25, 2009 Question. Does your friend also have a Phenom II? I have found that these processors have a odd sensitivity in their memory controller which requires just the right bios setting to stabilize the memory at 1066MHz. I'm starting to suspect a bug in the available bioses which support this animal. Link to comment Share on other sites More sharing options...
dboisvert Posted October 26, 2009 Author Share Posted October 26, 2009 After you said that I decided to update my motherboard bios, and it didnt make a difference :( Link to comment Share on other sites More sharing options...
Gaia Posted October 29, 2009 Share Posted October 29, 2009 Does your bios have the TLB bug fix field under CPU configuaration? That setting was for the original Phenoms. That bug's fixed in the Phenom II. If it's set to auto try disabling the setting. Also set CPU tweak to enable if available. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.