New dual Xeon build, help me move over too Linux

Hi!

Just got some new hardware and I'm finally ready to move over to Linux but i need some help. First off here is the components:

CPU: 2x Intel Xeon E5 2670 (8 Cores 16 Threads)
GPU: AMD 480 8GB
RAM: 128GB DDR3
MOBO: Intel S2600CP

Still haven't bought the PSU and case but will most likely pick up a EVGA Supernova G2 850W and a Phanteks Enthoo Pro.

Now comes the tricky part, I want to move over to Linux however i still need Windows for some games and some productivity. Therefore i'm planning on doing like Wendell showed us with the PCIe passthru. but i got a few questions:

1.
a)
Is there anyway to avoid a second GPU? Got and old HD 6950 2GB but i'm not thrilled about the extra noise and heat it will produce. Optimally i would like to just "unmount" the GPU from the host Linux system and change it over to Windows and then have a shortcut on the keyboard to change back. However from what I've read this isn't possible?

b)
If i need two GPUs do i need one cable from each GPU to the screens? or can the weaker GPU dedicated to Linux grab the output and display it like a regular window?

  1. Considering the motherboard is designed for a server there isn't many USB ports so i will most likely buy one or more PCIe to USB 3.0 cards and pass them thru to the VM. Can i buy a cheap one on Ebay from china or will the drivers be terrible and stop working if the chip isn't genuine? (Got stung by the "FTDIgate" on a USB to serial adapter before).

  2. The peripherals, thinking about using Synergy but i'm a bit worried about input lagg. I am by no means a CSGO pro but will it work good enough for FPS games? if it never actually go thru the network and only thru the Vswitch the delay should be minimal? Or do i need to buy a "USB hub switch" so i can select witch OS gets access the keyboard and mouse?

  3. Audio, Right now my audio setup consist of a Blue Snowball mic, the O2 AMP and ODAC paired with the HD650. But if i game can i still use discord/Teamspeak/mumble in Linux and then pipe the audio from the game thru a virtual playback device in Windows. And then combined all audio streams in Linux before it gets sent out to the ODAC?
    Furthermore will i be able to use the mic for push to talk in Windows if i need too communicate with people outside of other VOIP programs used in Linux?

Before people question the components I'm well aware of the drawback of the CPUs in gaming but the computer will be used for a lot of CAD and renders as well as the occasional video and RAW photos that will be edited and converted to suitable formats. But too be honest this is my hobby and all of the above is just an excuses to buy something fun :)

P.S. I'm a dyslectic non native speaker so please be kind if you find grammatical errors but don't be afraid to point them out so i learn by my mistakes.

you should use integrated card for your linux, and use dedicated gpu for kvm's.

1) just get usb hub...
2) its up to you, under my kvm's i haven't had any issues.
3) either get external sound card or usb/wireless speakers/headset.

1 Like

The problem is that the motherboard only got VGA out as part of the management circuit. So won't support dual Full HD monitors.

1) Only got USB 2.0 so i would like some USB 3.0 port for external storage, but a regular HUB is of curse something i planned to have thrown in to the mix.

2) Good too hear, hopefully i won't need to worry about that then :)

  1. All of the audio gear is USB based, however my aim is minimize the use of windows so i would like to have the VOIP programs in Linux and just grab the audio from the game and mix it in with all the sound from Linux (i.e. Teamspeak/webbrowser/spotify...)

thats where your rx480 comes in.

vga only for linux, use kvm's to feed proper video out.

1 Like

How dose it work if i don't need windows for a few hours, can i still feed 2x 1080p screen with Linux and then later just open a window with Windows still having Linux on the second screen, using only RX 480 + VGA? Thought there were some serious trouble re-initializing GPU with passthru more than once per boot.

Anyway thanks for the help, i will check back again tomorrow its 3AM here and i need to sleep :P

yeah you can still feed video out through your gpu.