Topic: Hardware question - 775 mobo for multi gpu set-up? (Read 498 times)
thank you very much for the input. these are noted. my current set-up is with my gaming rig equipped with two rx 470s which is obviously connected to a monitor. no problems with these two. im looking to creating a mining only rig with the old components I posted earlier and will be ordering some RX series graphics cards for it. thanks again!
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thanks for the replies guys. I've also been reading on dummy plugs. is it an issue with 775 mobos to have dummy plugs on gpus which aren't connected to a monitor?
no problem on linux with nvidia
on windows you need one gpu connected to monitor
If you are using the PCIE 1-16x slot for GPU; disable the onboard. Trust me. Nothing but heartache.
The socket 775 Mobo's are fine. I have even used the first gen AMD X64 motherboard/CPU from an old dismantled name brand home pc.
As for the issue with a monitor needing connected; that's dependent on the driver or GPU itself.
I have never heard of the OS itself causing this to be an issue.
I have personally never once had a nvidia > 6 series card ever need a monitor or dummy plug plugged in for the miner to boot and operate correctly. I only have an issue if its my home gaming PC with multiple GPU's, and I left a monitor unplugged when I booted; it didn't want to pick up my monitor as primary unless it was on the GPU populating the PCIE 16x slot #1 for some reason... but my monitor is always plugged in, so no issue there.
I have only heard of this issue with AMD, and specifically RX series, though it may encompass more than just those.
thanks for the replies guys. I've also been reading on dummy plugs. is it an issue with 775 mobos to have dummy plugs on gpus which aren't connected to a monitor?
no problem on linux with nvidia
on windows you need one gpu connected to monitor
thanks for the replies guys. I've also been reading on dummy plugs. is it an issue with 775 mobos to have dummy plugs on gpus which aren't connected to a monitor?
For single GPU usage no problem. I even used Pentium 4 based s775 motherboards.
But you may have to bridge pins on PCIEx1 slots when using risers.
Instructions here
https://www.gobitgo.com/articles/1001/How-To-Correctly-Use-and-Install-PCI-E-Riser-Cables/
Also, that quad core should be undervolted or you can simply swap it for a Celeron for a couple of dollars.
But you may have to bridge pins on PCIEx1 slots when using risers.
Instructions here
https://www.gobitgo.com/articles/1001/How-To-Correctly-Use-and-Install-PCI-E-Riser-Cables/
Also, that quad core should be undervolted or you can simply swap it for a Celeron for a couple of dollars.
I have built two pc's based on 1:XFX NFORCE780i SLI with core 2 duo e8400 and 2: EVGA Nforce i780 SLI with quad 6600 c2d cpu, both ran 3 sli nvidia 1070 cards without any problem. However, none of those boards wanted to take 2 cards... either 1 or 3. I did not try to spend much time figuring out why, just got three running, below is the link with pics: https://www.facebook.com/permalink.php?story_fbid=1072587589508989&id=348409301926825
I have an Asus P5K-E/WIFI-AP with Q6600 lying around, was thinking of using it with 4 RX cards for mining. will there be any issues if I use that mobo? I dont think it is PCIE 2.0 yet.
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