Sebastian Mares Posted April 15, 2009 Share Posted April 15, 2009 Hello, I was wondering if any of you owns the Corsair TWIN2X4096-6400C5 and can confirm that a total of 4 modules (resulting in 8 GB) work with an Asus P5Q. I am asking because an Asus document I read states that only two modules are supported. Cheers, Sebastian Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted April 16, 2009 Corsair Employees Share Posted April 16, 2009 TWIN2X4096-6400C5 is one set of Two 2.0 Gig modules not 4 modules and with two sets DDR667 would be suggested. Link to comment Share on other sites More sharing options...
Sebastian Mares Posted April 16, 2009 Author Share Posted April 16, 2009 I know it's a 4 GB set made of two modules, but I would like to use two sets (so four modules in total). Link to comment Share on other sites More sharing options...
AsusP5QPro Posted April 16, 2009 Share Posted April 16, 2009 If you check the QVL List from ASUS it is not supported with 4 modules. I have tried with 4 modules, and my Windows 2008 64-bit was stable for about 4 weeks. Then I unplugged a USB drive, and the machine ended with BSOD. I'm now running with just 2 modules, and the system seems stable. Glenn Link to comment Share on other sites More sharing options...
Sebastian Mares Posted April 16, 2009 Author Share Posted April 16, 2009 That doesn't sound too good. :[pouts: Problem is that I currently have a Gigabyte GA-P35-DS3 that runs very unstable with a pair of the mentioned Corsairs and another pair of 2 x 1 GB A-DATA RAMs. I thought that getting an Asus P5Q would allow me to run the Corsairs that I have and an additional kit in order to have 8 GB. What I don't like most in your post is that you say it worked fine for some time. This is exactly the same problem I have with my Gigabyte and the current RAM constellation - it works fine for five or six hours and then most programs crash or I even get a BSOD. This is why debugging is highly time consuming. I tried increasing the voltages, decreasing the speed, increasing the speed, modifying the latencies manually, etc. - nothing worked. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted April 16, 2009 Corsair Employees Share Posted April 16, 2009 We can try replacing the modules if you like but for both of you it sounds like some other issue from what you both have posted. Please note I am only talking about our module. Let's get them replaced, please use the On Line RMA Request Form and we will be happy to replace them. Link to comment Share on other sites More sharing options...
Sebastian Mares Posted April 17, 2009 Author Share Posted April 17, 2009 I am going to see first how my new Asus mainboard works but currently it's on my desk since I am also waiting for a new video card. :) But while we are at it, do you have any idea why Windows Vista keeps crashing randomly with bluescreens reading MEMORY_MANAGEMENT or PAGE_FAULT_IN_NONPAGED_AREA while memtest+, the Windows memory diagnostic utility (the one you can call by pressing F8 before Vista boots) and Prime95 run for hours (tested each of them for around 12 hours) without problems? And yes, all programs saw 6 GB which is correct since I have the 4 GB Corsair at the moment + some additional 2 GB from another manufacturer. Sometimes Windows does not crash entirely with a BSOD, but programs or services do. Sometimes Windows Updates fail to install and when I look at the crash reports, it's a function that compares hashes that returns errors. Sometimes I download files from the Internet and when I attempt to open them, I get an error that the CRC does not match. Really weird. :bigeyes: Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted April 20, 2009 Corsair Employees Share Posted April 20, 2009 I would not suggest mixing memory as it could be the cause of the problem. Link to comment Share on other sites More sharing options...
Sebastian Mares Posted April 20, 2009 Author Share Posted April 20, 2009 Yes, I fully understand that and this. As I said, what got me confused is that memtest+ and all other tools I tried don't report any problems while Windows Vista and Windows 7 both had random crashes. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted April 20, 2009 Corsair Employees Share Posted April 20, 2009 Try it with out mixing the memory. Link to comment Share on other sites More sharing options...
DerekT Posted April 20, 2009 Share Posted April 20, 2009 Yes, I fully understand that and this. As I said, what got me confused is that memtest+ and all other tools I tried don't report any problems while Windows Vista and Windows 7 both had random crashes. Often this is the case when the memory controller (Northbridge) is being stressed. The memory can handle the speed, so passes memtest, but the memory controller is balking at the speed of a two module speed set to a four module capacity. You need to increase your memory controller voltage to 1.2v from the stock default of 1.1v. You might also have to drop the speed of the memory but you can try with just the increase of voltage to the memory controller. You were requested to insert a system profile Here when you registered at this forum. This is requested so that we know your system and can apply consideration uniquely. Please correct this error. Link to comment Share on other sites More sharing options...
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