Windows will not boot with more than 1 GPU

Ok my setup is as follows: MSI 880G-E45 Motherboard, 3x Sapphire Radeon 5830's attached via pcie x1 extender cables, and windows 7 64 bit.

Before I install the drivers for the cards I can boot into windows fine and it detects all three cards but after that it hangs at boot and I can only start up in safe mode, unless I detach the other 2 cards which lets it boot up fine.

If anyone knows how to make sense of ntbtlog, I have it posted below. At this point I don't know what else to try.
Code:
Microsoft (R) Windows (R) Version 6.1 (Build 7600)
 6 10 2011 18:04:38.500
Loaded driver \SystemRoot\system32\ntoskrnl.exe
Loaded driver \SystemRoot\system32\hal.dll
Loaded driver \SystemRoot\system32\kdcom.dll
Loaded driver \SystemRoot\system32\mcupdate_AuthenticAMD.dll
Loaded driver \SystemRoot\system32\PSHED.dll
Loaded driver \SystemRoot\system32\CLFS.SYS
Loaded driver \SystemRoot\system32\CI.dll
Loaded driver \SystemRoot\system32\drivers\Wdf01000.sys
Loaded driver \SystemRoot\system32\drivers\WDFLDR.SYS
Loaded driver \SystemRoot\system32\DRIVERS\ACPI.sys
Loaded driver \SystemRoot\system32\DRIVERS\WMILIB.SYS
Loaded driver \SystemRoot\system32\DRIVERS\msisadrv.sys
Loaded driver \SystemRoot\system32\DRIVERS\pci.sys
Loaded driver \SystemRoot\system32\DRIVERS\vdrvroot.sys
Loaded driver \SystemRoot\System32\drivers\partmgr.sys
Loaded driver \SystemRoot\system32\DRIVERS\compbatt.sys
Loaded driver \SystemRoot\system32\DRIVERS\BATTC.SYS
Loaded driver \SystemRoot\system32\DRIVERS\volmgr.sys
Loaded driver \SystemRoot\System32\drivers\volmgrx.sys
Loaded driver \SystemRoot\system32\DRIVERS\pciide.sys
Loaded driver \SystemRoot\system32\DRIVERS\PCIIDEX.SYS
Loaded driver \SystemRoot\System32\drivers\mountmgr.sys
Loaded driver \SystemRoot\system32\DRIVERS\atapi.sys
Loaded driver \SystemRoot\system32\DRIVERS\ataport.SYS
Loaded driver \SystemRoot\system32\DRIVERS\msahci.sys
Loaded driver \SystemRoot\system32\DRIVERS\amdxata.sys
Loaded driver \SystemRoot\system32\drivers\fltmgr.sys
Loaded driver \SystemRoot\system32\drivers\fileinfo.sys
Loaded driver \SystemRoot\System32\Drivers\Ntfs.sys
Loaded driver \SystemRoot\System32\Drivers\msrpc.sys
Loaded driver \SystemRoot\System32\Drivers\ksecdd.sys
Loaded driver \SystemRoot\System32\Drivers\cng.sys
Loaded driver \SystemRoot\System32\drivers\pcw.sys
Loaded driver \SystemRoot\System32\Drivers\Fs_Rec.sys
Loaded driver \SystemRoot\system32\drivers\ndis.sys
Loaded driver \SystemRoot\system32\drivers\NETIO.SYS
Loaded driver \SystemRoot\System32\Drivers\ksecpkg.sys
Loaded driver \SystemRoot\System32\drivers\tcpip.sys
Loaded driver \SystemRoot\System32\drivers\fwpkclnt.sys
Loaded driver \SystemRoot\system32\DRIVERS\vmstorfl.sys
Loaded driver \SystemRoot\system32\DRIVERS\volsnap.sys
Loaded driver \SystemRoot\System32\Drivers\spldr.sys
Loaded driver \SystemRoot\System32\drivers\rdyboost.sys
Loaded driver \SystemRoot\System32\Drivers\mup.sys
Loaded driver \SystemRoot\System32\drivers\hwpolicy.sys
Loaded driver \SystemRoot\System32\DRIVERS\fvevol.sys
Loaded driver \SystemRoot\system32\DRIVERS\disk.sys
Loaded driver \SystemRoot\system32\DRIVERS\CLASSPNP.SYS
Loaded driver \SystemRoot\system32\DRIVERS\AtiPcie.sys
Loaded driver \SystemRoot\System32\Drivers\Null.SYS
Loaded driver \SystemRoot\System32\Drivers\Beep.SYS
Loaded driver \SystemRoot\System32\drivers\vga.sys
Loaded driver \SystemRoot\System32\DRIVERS\RDPCDD.sys
Loaded driver \SystemRoot\system32\drivers\rdpencdd.sys
Loaded driver \SystemRoot\system32\drivers\rdprefmp.sys
Loaded driver \SystemRoot\System32\Drivers\Msfs.SYS
Loaded driver \SystemRoot\System32\Drivers\Npfs.SYS
Loaded driver \SystemRoot\system32\DRIVERS\tdx.sys
Loaded driver \SystemRoot\system32\drivers\afd.sys
Loaded driver \SystemRoot\System32\DRIVERS\netbt.sys
Loaded driver \SystemRoot\system32\DRIVERS\wfplwf.sys
Loaded driver \SystemRoot\system32\DRIVERS\pacer.sys
Loaded driver \SystemRoot\system32\DRIVERS\netbios.sys
Did not load driver \SystemRoot\system32\DRIVERS\serial.sys
Loaded driver \SystemRoot\system32\DRIVERS\wanarp.sys
Loaded driver \SystemRoot\system32\DRIVERS\termdd.sys
Loaded driver \SystemRoot\system32\DRIVERS\rdbss.sys
Loaded driver \SystemRoot\system32\drivers\nsiproxy.sys
Loaded driver \SystemRoot\system32\DRIVERS\mssmbios.sys
Loaded driver \SystemRoot\System32\drivers\discache.sys
Loaded driver \SystemRoot\system32\drivers\csc.sys
Loaded driver \SystemRoot\System32\Drivers\dfsc.sys
Loaded driver \SystemRoot\system32\DRIVERS\blbdrive.sys
Loaded driver \SystemRoot\system32\DRIVERS\tunnel.sys
Loaded driver \SystemRoot\system32\DRIVERS\amdppm.sys
Loaded driver \SystemRoot\system32\DRIVERS\atikmdag.sys
Loaded driver \SystemRoot\System32\drivers\dxgkrnl.sys
Loaded driver \SystemRoot\system32\DRIVERS\atikmpag.sys
Loaded driver \SystemRoot\system32\DRIVERS\HDAudBus.sys
Loaded driver \SystemRoot\system32\DRIVERS\Rt64win7.sys
Loaded driver \SystemRoot\system32\DRIVERS\1394ohci.sys
Loaded driver \SystemRoot\system32\DRIVERS\usbohci.sys
Loaded driver \SystemRoot\system32\DRIVERS\usbehci.sys
Loaded driver \SystemRoot\system32\DRIVERS\i8042prt.sys
Loaded driver \SystemRoot\system32\DRIVERS\kbdclass.sys
Loaded driver \SystemRoot\system32\DRIVERS\wmiacpi.sys
Loaded driver \SystemRoot\system32\DRIVERS\CompositeBus.sys
Loaded driver \SystemRoot\system32\DRIVERS\AgileVpn.sys
Loaded driver \SystemRoot\system32\DRIVERS\rasl2tp.sys
Loaded driver \SystemRoot\system32\DRIVERS\ndistapi.sys
Loaded driver \SystemRoot\system32\DRIVERS\ndiswan.sys
Loaded driver \SystemRoot\system32\DRIVERS\raspppoe.sys
Loaded driver \SystemRoot\system32\DRIVERS\raspptp.sys
Loaded driver \SystemRoot\system32\DRIVERS\rassstp.sys
Loaded driver \SystemRoot\system32\DRIVERS\rdpbus.sys
Loaded driver \SystemRoot\system32\DRIVERS\mouclass.sys
Loaded driver \SystemRoot\system32\DRIVERS\swenum.sys
Loaded driver \SystemRoot\system32\DRIVERS\umbus.sys
Did not load driver \SystemRoot\System32\drivers\vga.sys
Loaded driver \SystemRoot\system32\DRIVERS\usbhub.sys
Loaded driver \SystemRoot\System32\Drivers\NDProxy.SYS
Did not load driver \SystemRoot\System32\Drivers\NDProxy.SYS
Did not load driver \SystemRoot\System32\Drivers\NDProxy.SYS
Did not load driver \SystemRoot\System32\Drivers\NDProxy.SYS
Did not load driver \SystemRoot\System32\Drivers\NDProxy.SYS
Loaded driver \SystemRoot\system32\drivers\HdAudio.sys
Loaded driver \SystemRoot\system32\drivers\ksthunk.sys
Loaded driver \SystemRoot\system32\DRIVERS\hidusb.sys
Loaded driver \SystemRoot\system32\DRIVERS\mouhid.sys
EDIT: I switched to XP 32 bit and it works fine....