mayor Posted September 14, 2007 Share Posted September 14, 2007 Hi everyone. I've got some issues with 4 modules of RAM. Firstly, even though my OS is Windows Vista Ultimate 64-bit, it doesn't recognize 4GB but only 3,2Gb. But now the OS doesn't even want to start at all. I can see BIOS starting page, but when it goes to start OS it's got frozen. Any ideas what to do? Thanks. Asus P5N E-SLI Intel Core 2 Duo E6850 Chieftec 650 W Corsair QUAD2X4096-6400C5DHX 4x1Gb kit Asus 8800 GTS 640MB Windows Vista Ultimate 64-bit Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted September 14, 2007 Corsair Employees Share Posted September 14, 2007 Please make sure that you have the latest Bios version and then load setup/optimized defaults and set the Dim Voltage to 2.0 volts (+.2 Volts W/Giga-Byte) and then set the timings manually to the tested settings for the specific module you have, or if you have Value Select "BY SPD" and then test the module/'s one at a time with http://www.memtest.org! 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. SLi ready: Disabled Memory Voltage: 2.0v NForce SPP Voltage: 1.5v CPU FSB Voltage 1.4 TCL: 5 TRCD: 5 TRP: 5 TRAS: 15 Command Per Clock: 2 TRC: 24 Link to comment Share on other sites More sharing options...
mayor Posted September 17, 2007 Author Share Posted September 17, 2007 I've chaged MB into the same but with Wi-Fi, BIOS is updated to the latest version, voltage is being set. The OS is starting now quite slow, working about 20 minutes, after that just stuck. To make it 'alive' I'm just taking out one module and it works perfectly (no need to restart or smth). So system is working perfectly with 3Gb, but when it's proper 4Gb it works like Celeron based system. :confused:I've tested modules on other MB (Gigabyte) with memtest - no errors. Link to comment Share on other sites More sharing options...
DerekT Posted September 17, 2007 Share Posted September 17, 2007 What speed have you set for your RAM in the BIOS? Remove two sticks of DRAM and enter your BIOS, then drop the speed from 6400 (800MHz) to 5300 (667MHz), save settings and shut down. Then replace the other two sticks and restart. What is the result? Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted September 17, 2007 Corsair Employees Share Posted September 17, 2007 Also You'll need to install MS patch 929777 from Microsoft for more than 3 GIG in Win Vista. You can search for it at http://www.microsoft.com. Watch the version of the patch as it will need to match the version of Vista you have. Link to comment Share on other sites More sharing options...
mayor Posted September 17, 2007 Author Share Posted September 17, 2007 Thanks for reply. I've already installed patch from Microsoft. So result as above. I'll try to 'play' with RAM tomorrow. Thanks guys. :): Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted September 18, 2007 Corsair Employees Share Posted September 18, 2007 I would check the CPU Voltage some of the MB's not setting it correctly with that 1333 FSB CPU. Link to comment Share on other sites More sharing options...
mayor Posted September 20, 2007 Author Share Posted September 20, 2007 Thank you guys. I've set RAM speed to 5300 (667 MHz), raised a bit voltage on CPU and now it's working perfectly. So, next step is overclocking. Thank you anyway. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted September 20, 2007 Corsair Employees Share Posted September 20, 2007 No problem, please let me know if you have any more questions! Link to comment Share on other sites More sharing options...
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