Solved X7SBL motherboard hangs with vt-d enabled Tags: BIOS Motherboards Last response: March 28, 2011 2:50 AM in Motherboards Share johndrake March 18, 2011 9:12:16 PM I am setting up a Hyper-V virtual server to play with at home. When I enable VT-d in the BIOS my computer takes 8 minutes to complete POST (to get to the BIOS summary page). When I disable VT-d the computer boots within a few seconds. My motherboard and CPU support VT-d according to the specs, and I have the latest BIOS update. What should I do? Thanks, JD My setup: -------------------- - Supermicro X7SBL-LN2 motherboard BIOS v1.2a - 8GB of Kingston ECC RAM DDR2 800 (KVR800D2E6K2/4G) - Intel Core 2 Quad Q8400 CPU (VT-d compatible per Intel) More about : x7sbl motherboard hangs enabled Best solution jaquith a c 717 V Motherboard March 18, 2011 10:37:18 PM Welcome to Tom's Forum! Supermicro X7SBL-LN2 http://www.supermicro.com/products/motherboard/Xeon3000... Intel Core 2 Quad Q8400 http://ark.intel.com/Product.aspx?id=38512 Right-off the bat the Q8400 is NOT compatible with ECC RAM; you need a Xeon CPU or non-ECC RAM. So I assume the combination of ECC + Virtualization is causing the 'problems.' Share mdsiu March 19, 2011 3:15:14 PM jaquith said:Welcome to Tom's Forum! Supermicro X7SBL-LN2 http://www.supermicro.com/products/motherboard/Xeon3000... Intel Core 2 Quad Q8400 http://ark.intel.com/Product.aspx?id=38512 Right-off the bat the Q8400 is NOT compatible with ECC RAM; you need a Xeon CPU or non-ECC RAM. So I assume the combination of ECC + Virtualization is causing the 'problems.' +1 Get a Xeon if you want ECC. m 0 l Related resources 1155 Motherboard with VT-D - Forum z77 Chipset motherboards that support vt-d - Forum Intel Sandy Bridge CPU & Motherboards: Integrated Graphics & VT-d - Forum Intel desktop motherboard with SAS enabled - Forum Enabling X.M.P profile in Gigabyte motherboard bios - Forum Can't find your answer ? Ask ! Get the answer johndrake March 28, 2011 2:48:44 AM Best answer selected by JohnDrake. m 0 l johndrake March 28, 2011 2:50:20 AM Many thanks to Jaquith and Mdsiu for pointing out my mistake. I took pains to make sure that the Intel CPU and Kingston RAM were compatible with the motherboard. It never occured to me that some CPU's don't support ECC RAM! Thanks again for your help, Tom's Forum is a great resource! JD m 0 l Can't find your answer ? Ask ! Publish Related resources hangs when USB support enabled Forum Windows 98 boot up hangs with DOS drivers enabled Forum Sata HDD causes motherboard start up (Bios splash screen) hangs Forum SolvedGigabyte Motherboard hangs at splash screen Forum SolvedMotherboard boots then hangs up Forum Gigabyte Z87 HD3 motherboard occasionally hangs at splash screen? Forum SolvedI'm trying to enable AHCI on a AMD MCP61PM-GM motherboard Forum SolvedHow to Enable Motherboards On-Board Graphics Forum Enabling OnBoard Lan hangs Windows 7 at startup screen Forum SolvedHow to enable Hardware Assisted Virtualization & Second Level Address Translation (SLAT) on an ASUS B75M-A motherboard? Forum SolvedCan i enable my ram to run at specified speed rather default motherboard speed(s)? Forum SolvedEnabling motherboard graphics for third monitor Forum Motherboard hangs in BIOS , keyboard stops working DISkette Drive 0 Seek failure Forum Should I enable turbo boost on Gigabyte GA B75m D3H motherboard? Forum SolvedHow to enable AHCI in MSI z87-g45 gaming motherboard Forum More resources Read discussions in other Motherboards categories BIOS Boot Chipsets ASRock Asus Chaintech DFI Elitegroup FIC Foxconn Gigabyte Intel MSI-Microstar !