r3ap3rsg Posted February 8, 2008 Share Posted February 8, 2008 Hey I bought the twin2x2048-6400c5dhx ram for my computer. Asus Crosshair Ver.0905 Nvidia 6800GS VCG6800SXPB (x2) SLI AMD 64 X2 3800+ Power supply Tiger 2006 600W I play Call of duty 4 and other games of that caliber. Game ran great didnt crash at all never got any errors and I always shut down my pc properly. I went to turn my pc on one night and it wouldnt boot up windows. I have error message if you need it. Dos said a file was corrupt so I tried to boot up with my Win XP CD. Wouldnt work. So I put in some generic ram that I have from when I first built my computer. Comp boots up fine now no problems. Except the generic ram stinks and games cause it to crash to windows and sometimes reboot. Any ideas as to why the ram died? I am not running any overclock settings I have everything left at defaults and overclocking is disabled. The ram is a 1.8V but for some reason was running at 1.92V, was that ok? Now next question. I wan't my pc to be stable I don't want to deal with ram dying again. I don't have $460 to blow on ram though :-) So I was doing some reading it is seems that the TWIN2X2048-C4DHX is a better set of ram. Whould you say yes to that? Also it seems like this ram is SLI Certified/compatiable is that true? So which ram would you suggest is going to be the most stable and compatiable with my system... Link to comment Share on other sites More sharing options...
Wired Posted February 8, 2008 Share Posted February 8, 2008 1.9v is fine, and C4 is better than C5, but only marginally. Wouldn't upgrade for that small of a difference. Link to comment Share on other sites More sharing options...
jcrsairusr88 Posted February 8, 2008 Share Posted February 8, 2008 Hi. You can check the Corsair memory configurator for other options, but twin2x2048-6400c5dhx appears to be compatible. Given everything was stable before and suddenly went south it may not be the ram. Check your m/b, CPU and case temperatures. Try to lower the memory speed to 667 with default/recommended timings (then at 800) and check the memory using memtest86+. If the memory checks out okay some other interaction is probably causing the crash/reboot. Since even the generic ram has crashes/reboots maybe your power supply, motherboard or cpu has developed an issue. Link to comment Share on other sites More sharing options...
Xtreeme Posted February 8, 2008 Share Posted February 8, 2008 Just note. SLI ram has nothing-what so ever to do with SLI video. Thats just Nvidia doing the marketing spin. SLI offers NOTHING you cant set manually in the bios. Its kinda like ram tweaking for the lazy or those that dont know how to setup mem. Also SLI and EPP are the same thing. Only diff I think is they have to pay nvidia for sli certification which is just rediculous. Cas 4 vs c5 will only show in synthetic benches not real life. SDR and DDR were more sensitive to low ram cause they had a lower mhz. latency x mhz = bandwidth. So as you raise the mhz, the latency (cas) means that much less. This is why ddrII doesnt show much diff from cas 5 to 4. Link to comment Share on other sites More sharing options...
r3ap3rsg Posted February 9, 2008 Author Share Posted February 9, 2008 Hi. You can check the Corsair memory configurator for other options, but twin2x2048-6400c5dhx appears to be compatible. Given everything was stable before and suddenly went south it may not be the ram. Check your m/b, CPU and case temperatures. Try to lower the memory speed to 667 with default/recommended timings (then at 800) and check the memory using memtest86+. If the memory checks out okay some other interaction is probably causing the crash/reboot. Since even the generic ram has crashes/reboots maybe your power supply, motherboard or cpu has developed an issue. I have a system monitor that I run to make sure all my stuff stays at safe values. My pc has never gotten hotter then 55 C. It only gets that hot though when I game but never exceeds. If I'm in windows my pc stays around 35 C. I am running that pc right now its the only one I have. I am just running it on the generic ram. I am pretty sure that ram died because my pc wont even boot into cmos if I have it in. I ordered the twin2x2048-6400c4dhx. I'll run the mem test when I get it and let you guys know how I make out. Thanks for your input everyone. Link to comment Share on other sites More sharing options...
r3ap3rsg Posted February 9, 2008 Author Share Posted February 9, 2008 I found this on the corsair lab performance results page. Due to the CPU having an uneven multiplier (13x) we needed to overclock the FSB of the CPU to 215MHz to get the memory to run at its tested memory frequency (800MHz). TWIN2X2048-6400C5DHX That test was done on a system with the same motherboard as mine but on a different processor. Mine is a 3800+ and they used a 5000+. They didnt have any issues when they did another test with the TWIN2X2048-6400C4DHX ram and the same board and processor as mine. So possibly that was my issue?? I needed to overclock my FSB so the ram would run properly? 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 That is common with the odd multiplier CPU's but if you dont over clock it should run OK just it wont come out to DDR800. Link to comment Share on other sites More sharing options...
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