Are Z170 boards a lost cause?

What about x99 ?
Does work 7 cards ?

X99 is crazy expensive … depends on the motherboard if it can run 7 GPUs
Which do you have in mind ?

Sorry. i mean can i run 6 card on x99 MB (example ASUS X99-S) ?
if in z170 not work 6 card
(write with google translate)

It isn’t money.
I can take any motherboard with 6 PCIe slots of x99 or z170/h170
I want to be sure that I will be able to start 6 cards
it is good that saw this topic. Almost took already Asus z170 Pro Gaming and here saw that 6 cards don’t work at it

Pricier boards usually don’t have problems. If you have the board already it should be ok.

I have an expensive Asus x79 board that can do 7 GPUs

You should just check eBay or Craigslists and get the old and durable.

Gigabyte 990FXA-UD3.

6 PCIe slots all work, and it accepts a $5 CPU.

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I just bought an MSI Z97 GAMING 5 motherboard, under $100 after rebate. It’s 1150 chipset, so $50 Celeron plus $30 stick of RAM and you’re off to the races. Oh, and 7x PCI-E slots.

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To add another data point.

I am using Ubuntu 16.04 LTS with an i5-5600 and a Gigabyte GA-Z170X-Gaming 3 mobo with 16 gb ram.

I have 5 RX 480 4gb working fine without changing any bios settings. Having trouble getting the 6th to work though.

just a heads up for everyone
ive flashed 10 gigabyte GA-Z170-Gaming K3 to latest bios F20
9 out 10 work flawlessly with 6 cards no need for changing any settings in bios
they work plug and play now
been stable for 2-3 days now

for anyone with the following board

ASROCK Fatal1ty Z170 Gaming K6
using BIOS 2.8
can run 5 cards by doing the following in the bios
go to advanced mode
and chipset settings
Change PCIE to gen1 on both options
change max TOLUD which is the next option down from the above to 2.5GB

this makes 5 cards work
I have not got round to flashing the bios yet to reassess if can do 6 cards

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Great, will try that board and see if I can get 6 to work. Ty dude.

I’ve done it, but I’ve got multiple M5/M7 boards and only one out of them all will do 7 cards.
I’m almost certain that these boards are hit and miss with getting one to do 7 cards stable.