https://community.intel.com/t5/Mobile-and-Desktop-Processors/Issue-with-Sandy-Bridge-Chipset/m-p/237092#M2747 <P>Okay another power supply does not solve the issue, same result, system refuses to boot up and continuously reboots. The cards I have tried are knwon working cards in other systems XFX 8800 and 9800.</P><P></P><P>It does boot up with an ATI X700 PRo which does not require seperate pci-express power.</P><P></P><P>Am I missing something here? Is there a problem with suppot for these cards? </P><P></P><P>If the board was bad wouldnt it not accept <B>any </B>pci card?</P><P></P><P>Puzzled. </P> Tue, 08 Feb 2011 12:46:52 GMT idata 2011-02-08T12:46:52Z https://community.intel.com/t5/Mobile-and-Desktop-Processors/Issue-with-Sandy-Bridge-Chipset/m-p/237089#M2744 <P>Hi Guys,</P><P></P><P>I am not quite sure if this is motherboard related or not but I am having a difficult time booting up my system (Win7 64 Bit/ i5-2500K /DP67BG /Corsair HX750 Modular Supply) I have tried two different XFX 8800 and 9800 working PCI-Express Boards in both of the two slots pci express slots.</P><P>This system refuses to boot.</P><P></P><P>If I remove the cards and put an older X700 Pro Radeon card in (which does not require an external pcie power supply connector), the system boots just fine. Do you think this might be BIOS related? or may be a power supply issue related? </P><P></P><P>Any ideas would be helpful.</P><P></P><P>Thanks..</P> Sun, 06 Feb 2011 23:34:19 GMT https://community.intel.com/t5/Mobile-and-Desktop-Processors/Issue-with-Sandy-Bridge-Chipset/m-p/237089#M2744 idata 2011-02-06T23:34:19Z https://community.intel.com/t5/Mobile-and-Desktop-Processors/Issue-with-Sandy-Bridge-Chipset/m-p/237090#M2745 <P>Based on what info your provided I would suspect a power supply issue.</P><P></P><P>Possiable the PS is having issues supplying enough power to both video and motherboard with the higher power video cards.</P> Mon, 07 Feb 2011 00:05:02 GMT https://community.intel.com/t5/Mobile-and-Desktop-Processors/Issue-with-Sandy-Bridge-Chipset/m-p/237090#M2745 DSilv11 2011-02-07T00:05:02Z https://community.intel.com/t5/Mobile-and-Desktop-Processors/Issue-with-Sandy-Bridge-Chipset/m-p/237091#M2746 <P>Thanks Doc. I am beginining to suspect the power supply is the issue. I wish I had a second power supply to try. The system is limping with a very low end card right now but is working at least. I'll see what the power supply makers say about this.</P><P></P><P>Cheers </P> Mon, 07 Feb 2011 01:52:53 GMT https://community.intel.com/t5/Mobile-and-Desktop-Processors/Issue-with-Sandy-Bridge-Chipset/m-p/237091#M2746 idata 2011-02-07T01:52:53Z https://community.intel.com/t5/Mobile-and-Desktop-Processors/Issue-with-Sandy-Bridge-Chipset/m-p/237092#M2747 <P>Okay another power supply does not solve the issue, same result, system refuses to boot up and continuously reboots. The cards I have tried are knwon working cards in other systems XFX 8800 and 9800.</P><P></P><P>It does boot up with an ATI X700 PRo which does not require seperate pci-express power.</P><P></P><P>Am I missing something here? Is there a problem with suppot for these cards? </P><P></P><P>If the board was bad wouldnt it not accept <B>any </B>pci card?</P><P></P><P>Puzzled. </P> Tue, 08 Feb 2011 12:46:52 GMT https://community.intel.com/t5/Mobile-and-Desktop-Processors/Issue-with-Sandy-Bridge-Chipset/m-p/237092#M2747 idata 2011-02-08T12:46:52Z https://community.intel.com/t5/Mobile-and-Desktop-Processors/Issue-with-Sandy-Bridge-Chipset/m-p/237093#M2748 <P>Hi Mike, try to boot with single card with ext pwr supply try to get to the bios and change the boot sequence . ckeck if it works </P> Mon, 28 Feb 2011 11:51:49 GMT https://community.intel.com/t5/Mobile-and-Desktop-Processors/Issue-with-Sandy-Bridge-Chipset/m-p/237093#M2748 idata 2011-02-28T11:51:49Z