Thanks. Here are three logs. failed is the dmesg with 9 cards good is the boot with 8 cards lspci.log is the pci log with 8 cards The 9th card is a copy of 0f:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Ellesm ere [Radeon RX 470/480/570/580] (rev ef) (prog-if 00 [VGA controller]) Subsystem: Advanced Micro Devices, Inc. [AMD/ATI] Device 0b31 One other thing is that if I put in 7 or 8 cards, I don't get x11 video. All of the diagnostics are the same, but I don't get x11 video, but I can switch to text console. Also with nine cards, I don't get the grub boot screen. I get this graphics display, but then the boot process seems to work and then it switches to text before the kernel panic. One final thing is that I'm working with a group of scientists that would like to use ROCm for opencl supercomputing, and I'm trying to get resources so that they can do development work. -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://lists.freedesktop.org/archives/amd-gfx/attachments/20180217/d8500305/attachment-0001.html> -------------- next part -------------- A non-text attachment was scrubbed... Name: dmesg.failed.out Type: chemical/x-gulp Size: 118968 bytes Desc: not available URL: <https://lists.freedesktop.org/archives/amd-gfx/attachments/20180217/d8500305/attachment-0003.bin> -------------- next part -------------- A non-text attachment was scrubbed... Name: dmesg.good.out Type: chemical/x-gulp Size: 105947 bytes Desc: not available URL: <https://lists.freedesktop.org/archives/amd-gfx/attachments/20180217/d8500305/attachment-0004.bin> -------------- next part -------------- A non-text attachment was scrubbed... Name: lspci.log Type: text/x-log Size: 31738 bytes Desc: not available URL: <https://lists.freedesktop.org/archives/amd-gfx/attachments/20180217/d8500305/attachment-0005.bin>