Benighted Posted July 28, 2009 Share Posted July 28, 2009 Hi, I'm new to this forum, so greetings everyone! I've just assembled a new system (see full specs in profile), but I'm experiencing a lot of problems: - Vista Home 64 bit hangs and applications are constantly crashing (explorer.exe, defender, etc etc.) - CRC errors when attempting to install big games, extract huge arhcives. - general instability I've figured out that it must be the memory that is causing this. I've run memtest and it failed a lot of times. I've tried to switch slots as well with same problems. After I updated the bios the system is worse than ever. Before I started to change the settings in bios, I checked the memory configurator. I see that my RAM type is not listed as compatible with the MB. I see that the 6400C5 is supported, but not the 6400C5C. So before I start to fiddle to much with voltages and latencies: Is there any way to get my RAM to work with my P5Q Pro, or should I just return the sticks and get TWIN2X4096-6400C4DHX or 8500C5DF instead? Any help is very much appreciated. Link to comment Share on other sites More sharing options...
Wired Posted July 28, 2009 Share Posted July 28, 2009 6400C5 and 6400C5C are the same thing (just different heat spreader), so they're compatible. Link to comment Share on other sites More sharing options...
Benighted Posted July 29, 2009 Author Share Posted July 29, 2009 Thanks for your reply. Ok so they're compatible. Now I've tried with one stick at the time, and memtest fails. (USB legacy disabled). This is with default settings 5-5-5-18 and Voltage 1,8. I've also tried to raise to voltage up to 2,1 and set the FSB to 333 Mhz (solution suggested from different user in the Asus forum). Any recommendation how I should set up my RAM with this MB? Link to comment Share on other sites More sharing options...
Hokuto Posted August 2, 2009 Share Posted August 2, 2009 I would think (if I knew enough!) that you should get RAM Guy to get you an RMA for those modules. If you're getting that many memtest errors on a single stick of memory with BIOS values set to AUTO, it sounds like a memory (hardware) problem to me (but what do I know?). On the other hand, you might also try disconnecting your hdd and take out one of your video cards (strip the system down to bare essentials), then try running memtest86 from floppy or CDR/DVD and see what happens. (I have a similar system; the system runs fine with 2 memory modules loaded, but balks when all 4 are populated; I'm interested in hearing about others having issues with this kind of setup.) Link to comment Share on other sites More sharing options...
Wired Posted August 2, 2009 Share Posted August 2, 2009 Do both sticks fail when tested in the same slot? If so, test them in a different slot. Link to comment Share on other sites More sharing options...
Benighted Posted August 5, 2009 Author Share Posted August 5, 2009 Thanks for your replies. Yes, I have tried all slots with one module at the time. I had memtest failures conistently. Your suggestion would be a last resort hokuto, but I din't bother. I read about so many other users having issues that I figured that his kind of RAM couldn't work on the board. It's not on Asus' QVL. I returned the RAM in favour of 8500C5G 1066 Mhz (it's on the QVL) and now the system works flawlessly. I haven't run memtest yet, but all the CRC errors, win update failures and OS crashes are gone. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted August 5, 2009 Corsair Employees Share Posted August 5, 2009 Thank you for letting us know and please let us know if you have any more questions! Link to comment Share on other sites More sharing options...
Benighted Posted August 7, 2009 Author Share Posted August 7, 2009 Will do RAM GUY, thanks. The good thing with these challenges is that you draw a lot of experience and learnings from them. :-) Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted August 7, 2009 Corsair Employees Share Posted August 7, 2009 That is exactly right, its how I have learned so much. Wont let the cat out of the bag so to speak but when I started doing this there were no forums or even and internet to speak of to search for help on issues. Link to comment Share on other sites More sharing options...
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