gthreeno Posted February 22, 2008 Share Posted February 22, 2008 I know there have been a lot of threads with similar problems, but I can't seem to find a fix. I'm trying to upgrade from 2x 1gb Corsair XMS2 DDR2-800 PC6400 Memory (model CM2X1024-6400) to 4x of those. I'm adding two more. Anyways, I put the extra two in (the black slots) and at first I got nothing. The fans started and it SOUNDED ok, but no picture. Reboot, and I get the long beep. So I take the two extra out and go into my bios > chipset > memory timings and I'm trying to find the right config that will make this all work... but unfortunately after 2 hours I just cant seem to find it. I'm currently at 4-4-4-12-2. I'm not just booting up and getting stuck at the ASUS screen. Can't get past it. Am I even going about this right? I wouldn't believe it if I found out that it's not possible to upgrade to 4gb (4x 1gb). my current setup is: Asus P5N-E SLI nForce® 650i SLI Chipset w/6-channel CODEC, Gb LAN, S-ATA Raid, USB 2.0, IEEE-1394 Dual PCI-E MB Intel Core 2 Duo Processor E6600 (2x 2.4GHz/4MB L2 Cache/1066FSB) I'm sorry, I'm a total noob to all of this... so if I'm making a fool of myself please feel free to point that out. thanks. Link to comment Share on other sites More sharing options...
DerekT Posted February 22, 2008 Share Posted February 22, 2008 If you populate all four DRAM banks, then you need to drop your DRAM to 667Mhz. Set your Vdimm to 2.0V. Insert two sticks and enter BIOS. Set to 667Mhz. Set the Vdimm to 2.0v. Shut the system down and insert the second pair of sticks. Link to comment Share on other sites More sharing options...
gthreeno Posted February 22, 2008 Author Share Posted February 22, 2008 see below. Link to comment Share on other sites More sharing options...
gthreeno Posted February 22, 2008 Author Share Posted February 22, 2008 If you populate all four DRAM banks, then you need to drop your DRAM to 667Mhz. Set your Vdimm to 2.0V. Insert two sticks and enter BIOS. Set to 667Mhz. Set the Vdimm to 2.0v. Shut the system down and insert the second pair of sticks. Thanks for the reply. Ok, like i said -im a complete noob, sorry. I cant seem to find where to set the DRAM to 667..., and by Vdimm do you mean the Memory Voltage? in which i set to 2.013V. (closest thing to 2.0 I could get to.) Link to comment Share on other sites More sharing options...
DerekT Posted February 22, 2008 Share Posted February 22, 2008 trying to find those settings... MEM (DDR), Mhz: 667 Memory Voltage:2.05 Link to comment Share on other sites More sharing options...
gthreeno Posted February 22, 2008 Author Share Posted February 22, 2008 OK here goes the test... Link to comment Share on other sites More sharing options...
gthreeno Posted February 22, 2008 Author Share Posted February 22, 2008 DerekT YOU are AMAZING! Windows XP (32bit) is now reading 3.50GB of RAM! I LOVE YOU. been trying to figure this out all day! thank you so much! Link to comment Share on other sites More sharing options...
gthreeno Posted February 22, 2008 Author Share Posted February 22, 2008 as a second thought: do i need to adjust my timings, or am i ok with default: 5-5-5-12? Link to comment Share on other sites More sharing options...
DerekT Posted February 22, 2008 Share Posted February 22, 2008 as a second thought: do i need to adjust my timings, or am i ok with default: 5-5-5-12? You can test and see if you are stable with 4-4-4-12. If not, then raise the timings. Link to comment Share on other sites More sharing options...
gthreeno Posted February 22, 2008 Author Share Posted February 22, 2008 will do. thanks again! Link to comment Share on other sites More sharing options...
DerekT Posted February 22, 2008 Share Posted February 22, 2008 You're welcome. Link to comment Share on other sites More sharing options...
Amph Posted March 6, 2008 Share Posted March 6, 2008 I'm having the exact problem and I've tried to do the same changes gthreeno did but it didn't work. Do I need to change the FSB when changing the MHz from 800 to 667 in unlinked mode? I tried various voltage settings and at one time(!) I did get past the ASUS screen but when Windows was supposed to load up, only a blank black screen was there. So I restarted and tried to enter BIOS and did, but when inside, my keyboard wouldn't respond. And then I restarted again and the beeps were back. And that's where I'm now. Any idea would be greatly helpful! Link to comment Share on other sites More sharing options...
DerekT Posted March 6, 2008 Share Posted March 6, 2008 Use a Non USB keyboard to enter your BIOS. Enter the USB section of your BIOS and ensure USB Legacy Mode is enabled. Please enter Here and list your system hardware components being as specific as possible. Link to comment Share on other sites More sharing options...
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