PeterPeter
It does indeed utilize 6 GPUs as some others have stated. You do need to disable things like HD audio, and enable 4g encoding. (I did not need to update my bios to do this.) It also does appear to be that the GPUs DO need to be the exact same make/model/etc. In fact, yesterday I bios modded my cards, and now it only sees 4 and will not even post with more than 4 installed. Each card works great solo.I will be testing today once home from work if I flash them all with the exact same bios if the mobo will then boot with all 6. Up until this point though, the motherboard has worked great out of the box, looks good, and has been exceptionally adequate for my needs. Especially for the price at which I purchased it.UPDATE: I actually added in 2 other cards via a PCI-e 4 way splitter so now I am running 8 gpus on this board. In addition to this, 2 of them are different models from the other 6. I am running 6 rx 580 4 gb, 1 rx 480 4 gb, and 1 rx 570 4gb. They do NOT have to all be the same card.
Mx+BMx+B
Wanted to provide a recent review for those who are considering this Motherboard for mining. I can confirm that mix manufactured cards (Nvidia and AMD) in the same rig will not work. Otherwise Same card models will. I have 6 x AMD 6700XT running Pretty close to 47/MHs. Still messing with settings. I am running my mining setup on Windows w/Team Red miner. Like previous review, Update BIOS to latest version (3004). In bios, just reset everything to default after update (F5). Use F9 for search, type 4G -> Enable both. Change all PCIE speeds to GEN2, Disable Audio, Serial and SATA ports not in use (I am using #1). Lastly, make sure CPU is being used as default graphics display, not auto and disable fastboot. You May need to do a TdrDelay Mod of 8 to 10 in windows with 5 Video Cards Plugged in. My Tdr setting is 8. PCIx1_1 should be the last slot for your last video card. 5 Video Cards works with no prob, once you add TdrDelay w/bios settings, Windows Boot might take 30sec-45 with that 6th card, so just wait for the display to turn on. The video driver didn't fail. 46.6-47.5 MHs is norm for 6700xt on this build. Hope this helps any future folks. Can't comment on HiveOS, I just avoid it, so can't speak to 6 cards with Linux, only windows.
Shivam
Got this board used - like new, and it looked brand new. No problems installingThe board itself is very good. Room for 4 RAM sticks, 2 M.2s, and 2 GPUs. Can’t really ask for more
Compufix Wooster
One of the best boards that I have used. Great quality and performance.