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Old 20th April 2017
shep shep is offline
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Default Recommendations for 6.1 compatible Hardware

I'm looking at upgrading my older Athlon64/DDR2/ATIHD2400 based system with a primary focus of an OpenBSD desktop. I don't game but I do utilize Stellarium which does need accelerated graphics. I'm mainly looking to get SATA III, USB 3.0, DDR3 1600, supported graphics and low heat/minimal fans.

I am looking for feedback on several factors:

1) Video - Options:
A) Intel Haswell/Broadwell w/ Intel HD video
B) Either Intel or AMD cpu w/ separate AMD fanless PCIe graphics card
C) There is an AMD FM2 cpu with HD7540D video and it is presently on sale:
My understanding is that this is the only currently supported AMD cpu+gpu.

Comments on the above options?

I have not needed to set up UEFI and understand that some UEFI bios are more friendly to OpenBSD than others. Any that should be specifically avoided?
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Old 20th April 2017
jenright jenright is offline
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The third option you linked to looks like a good deal. I haven't personally tested it with OpenBSD, but that would be a cheap option that you could fit in a compact case and get good performance for the money.
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Old 21st April 2017
shep shep is offline
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One hurdle for the development of more recent AMD video drivers was clang(1).

After going ahead and buying the A4-5400 cpu/gpu the following commit was made:
AMD64/i386 clang support.

Last edited by shep; 2nd May 2017 at 07:37 PM. Reason: AMD54 -> AMD64
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Old 22nd April 2017
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Head_on_a_Stick Head_on_a_Stick is offline
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Quote:
Originally Posted by shep View Post
I have not needed to set up UEFI and understand that some UEFI bios are more friendly to OpenBSD than others. Any that should be specifically avoided?
My UEFI laptops (a Clevo W550SU with an Intel chipset and a Compaq CQ58/AMD) both work just fine with the OpenBSD bootx64.efi UEFI bootloader.

Some motherboards do not follow the UEFI specification correctly and will not boot $ESP/EFI/BOOT/BOOT{X64,IA32}.EFI, they instead load $ESP/EFI/Microsoft/Boot/bootmgfw.efi — this is a Redmond-derived hack used to accommodate sub-standard UEFI implementations and has unfortunately been adopted by some motherboard vendors.

More on this problem here:

http://www.rodsbooks.com/efi-bootloa...rnative-naming

From my experience on the Arch & Debian forums, I would say that ASUS are the worst transgressors but many motherboards seem to be afflicted.

To get OpenBSD working on such a system, it may be necessary to copy /usr/mdec/BOOT{X64,IA32}.EFI to $ESP/EFI/Microsoft/Boot/bootmgfw.efi

Last edited by Head_on_a_Stick; 22nd April 2017 at 02:12 PM. Reason: Corrected path to .efi loader
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Old 1st May 2017
shep shep is offline
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It took a little while for all the parts to arrive but the above mentioned system is happily running OpenBSD 6.1 amd64 with a GPT/EFI boot. The dmesg and glxinfo were posted in hardware http://www.daemonforums.org//showthread.php?p=61306.

I'm
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