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Author Topic: Does the Intel D975XBXLKR support 3 video cards?  (Read 1070 times)
ElectroGeek007
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May 25, 2011, 05:00:49 AM
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I recently bought a Radeon 5770 to add to my rig, which contains a 5870 and a 5850. However, when I added it to the motherboard and booted it up, Windows gave me a "uncorrectable hardware error" BSOD.  Sad  My motherboard, the Intel D975XBXLKR, has 3 PCIe slots, so it should support 3 video cards...right? I do not have any of them connected in CrossFireX. Might the video card be malfunctioning, even though I just bought it? Or is this a limitation/problem of the motherboard (or Windows)?

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fadisaaida
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May 25, 2011, 05:05:14 AM
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i think i read somewhere that for windows u need a kinda of small "dump vga plug" to trick it that 2 monitors are used.

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Iceredwing
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May 25, 2011, 05:12:55 AM
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try the card on a different mobo and see if it works?
grndzero
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May 25, 2011, 05:20:25 AM
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I recently bought a Radeon 5770 to add to my rig, which contains a 5870 and a 5850. However, when I added it to the motherboard and booted it up, Windows gave me a "uncorrectable hardware error" BSOD.  Sad  My motherboard, the Intel D975XBXLKR, has 3 PCIe slots, so it should support 3 video cards...right? I do not have any of them connected in CrossFireX. Might the video card be malfunctioning, even though I just bought it? Or is this a limitation/problem of the motherboard (or Windows)?

I ran 3 x 5850's on a D975XBXLKR and Ubuntu 10.10 without any issues. I didn't try it with Windows.

Make sure your BIOS is the most current. Mine is 1351.

Ubuntu Desktop x64 -  HD5850 Reference - 400Mh/s w/ cgminer  @ 975C/325M/1.175V - 11.6/2.1 SDK
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amazingfunksta
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May 25, 2011, 06:28:31 AM
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Same with me... 3 x 5850s... No problem, same mobo.
keybaud
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May 25, 2011, 02:22:36 PM
 #6

I have an INtel D975XBX with 3 x HD5870, but you need to use VGA dummy plugs, so that Windows will recognise the extra graphics cards:

http://www.geeks3d.com/20091230/vga-hack-how-to-make-a-vga-dummy-plug/

Simplest method:

http://blog.zorinaq.com/?e=11

Of course, you could use the X1 port with a riser and fit 4 cards:

http://blog.zorinaq.com/?e=42




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