Machine won't boot with 8GB of RAM Tags: Memory RAM Boot Intel Motherboards Last response: May 23, 2009 11:00 PM in Memory Share hendrikbriel May 23, 2009 6:46:56 AM Hi, I have an Intel D975XBX2 (Bad Axe 2) motherboard. According to Intel, the motherboard supports up to 8GB of ram. When installing more than 4GB (2x2GB) though, the machine doesn't boot up. I have tested all 4 my memory chips, which are of the same model and series: Kingston, KVR 667 D2N5/2G Also, when I place the 4GB in a single channel, the PC won't boot up. Can anyone provide some guidance to this troubleshooting? More about : machine boot 8gb ram hendrikbriel May 23, 2009 7:13:03 AM I am running Vista 64bit - the machine doesn't even enter the BIOS with more than 4GB of RAM installed. 55795642 May 23, 2009 10:43:45 AM Any beep codes after powering up? Have you tried resetting the CMOS? Quote: 1) Turn off all peripheral devices connected to the computer. Disconnect the computer’s power cord from the AC power source (wall outlet or power adapter). 2) Remove the computer cover. 3) Locate the battery on the board. 4) With a medium flat-bladed screwdriver, gently pry the battery free from its connector. Note the orientation of the “+” and “-” on the battery. 5) Leave the battery out for 10 - 15 minutes, for the CMOS to lose the settings. 6) Replace the battery in the connector, orienting the “+” and “-” correctly. 7) Replace the computer cover. 8) Turn the system back on. from http://www.intel.com/support/motherboards/desktop/sb/CS... Related resources 8Gb ram Dual boot Vista x64 and XP x32 - Forum Windows 7 and 8gb RAM , wont boot - Forum MSI P67A-GD53 Board Wont Boot With 2x4gb ( 8GB ) Ram - Forum So noticed that my machine could take up to 8gb of ram - Forum PC wont boot with 8GB ram - Forum Can't find your answer ? Ask ! Get the answer nukemaster a b } Memory a c 78 V Motherboard May 23, 2009 11:22:39 AM Sometimes when you run 4 sticks of memory, you need a little boost to the memory(0.1 or so) voltage and in some cases the chipset voltage. Also make sure the board is not trying to overclock the memory as that will be even harder with 4 sticks hendrikbriel May 23, 2009 11:00:00 PM There are no beep codes. Simply nothing on the screen. (Beep does work as it beeps when booting up with 4GB) Cmos reset didn't help. Will try tinkering with the voltages, and revert - a complete newby at this. Will boost both memory and chipset with 0.2V and let you know my findings. Thanks for assisting! Can't find your answer ? Ask ! Publish Related resources: ForumIs 8GB 's of RAM good enough for now, or should I go 16GB's? ForumProblem upgrading to 8gb RAM in Windows 7 (Updated) ForumHELP!! 790i Ultra SLI Wont Boot with 8GB of RAM ! ForumWindows7, 32 bit... won't recognize my 8GB ram ForumBSOD with 8GB RAM ForumUpgrade 4gb to 8gb won't boot ForumNeed help with working machine that suddenly won't POST. ForumIntel i5 3550p & AS Rock Z77 PRO 3 ForumNeed help with 3GB switch in XP Pro ForumCan't install OS with new GA-MA770T-UD3P ForumMini-ITX motherboard with Dual LAN and built-in WiFi? ForumAsus p5b deluxe with dd2 on 800 or 1066 >? ForumI can't boot ForumUnable to boot with 4 dimms installed ForumUsing 4GB RAM on 32bit XP More resources Read discussions in other Memory categories Compatibility DDR2 DDR3 Dual Channel RAM Corsair G.SKILL !