8 GPU Mining Rig 68mm Slots, Crypto Ethereum Miner Frame with Barebone Motherboard for ETH/ZEC, Cryptocurrency Machine System Case with SSD/RAM (Without GPU/PSU)

Ordered my second rig after being very happy with the first one. Opened up the 2nd rig and installed operating system, fine tuned windows for mining etc, ran some benchmarks, and as I was relocating the rig back into my mining room I lost HDMI output and the USB terminals lost power. I did a few troubleshooting tests to narrow down what happened. After a few messages back and fourth with Chaofan Mining Customer Service we got to the bottom of the problem. The 4gb ram somehow failed and decided not to work for me anymore. Since I had an extra 4gb ram card in a box from a previous build I was able to get up and running right away. I was already very happy and satisfied with the customer service I had received and was not expecting any further assistance. Today I woke to a small refund to cover the damaged Ram. The Customer Service is spot on! 5 Star Experience again!!!

The steel gauge is pretty good, but not high enough to be heavy. Fans are good, although they work as exhaust, debating on flipping them (cards exhaust out of opposite side). I built all a2000 cards with a 2000w power supply with all the ports I needed. Removed the SSD, moved a prepared Hiveos USB drive over to the system, flipped the switch and everything came on. Loaded T-Rex, it had an issue starting, updated Nvidia drivers to latest, powered down, brought back up and I was off to the races. Just under 290MH and under 575w. It's working well so far. If I don't see problems by tonight I'm going to order another one and put them both in a data center (free power space, used for another purpose)EDIT : Note, I did not wind up flipping the fans, and, so far, this seems to be fine they way they are.Updates since working with this for a while : Since the seller isn't really answering questions, I'll tell you what I've learned about this board.- If you're running something like the A2000 (the most efficient GPU on the market for mining), then you will be relying ONLY on PCIe slot power because they have no other power connections, and the board has a hard limit on those ports that prevents you from hitting the 80/85w spec for these ports normally. This will limit the hash rate to the point that the GPUs might, just barely, hit 40MH, and a lot of times will be slightly under, even though they are capable of a sustained 41MH on a normal board or riser. I constantly have to pull fan speed to get more power to the actual GPU with this config. Luckily, they are in a temp controlled data center, so I don't have to worry too much about setting the fan to 75% instead of 100%.- Other than the board slot limitation, it works great so far. I have 2 of these running in a datacenter right now, 306MH each, pulling 558w each running 8 x A2000, and they are humming alone happy as can be.If someone ever comes up with a way to mod the power delivery to those pcie ports, I would love to see it closer to 85w per port. This would bring the modded A2000 up to the point to where it could hit 50MH.Update 2 : Another rig, testing - loaded normal cards I use in it without a problem, however, I tried to test a 2080ti FE card, and it would not work on the board. Shows an error with the card. Updated nvidia driver, no dice. So far, I have no evidence that this card will work on this motherboard. Going to pull it and use it elsewhere for now, since the card does, in fact, work, but just will not work in this system so far. Hive is latest version, nvidia latest version.

This case is functional. It is sturdy enough. But there are some glaring issues.Everyone who's been building computers for the last oh 30+ years knows a that cases should all use the same screws. This case comes with very small screws. They are also way too soft and strip incredibly easily. The proper case screws should be used and the case should be remachined accordingly.The power supply assembly is just terribly conceived and exectuted. The best you can hope for is a PSU that is being held in place by the tension of those way too small easily stripped screws. What should be there is a proper 2U size PSU support rails that you can actually screw the PSU into, using again the proper screws.Finally, the manual that came with this product is clearly being hand printed on a home color printer. The images are way too small. You have to read it with your headset magnifyer. You'll also need that headset mag for screwing in most of the screws because again, they are silly small and your handy dandy magnetized screw driver that perfectly fits proper case screw is of no use to you here.This unit is funcational. It fired right up. The instructions were ok. This is clearly being made by a small outfit, which I am happy to support. I got 6 GPUs running in it for now. No problem. The fans are excellent by the way. The motherboard boots super fast and the CPU seems fine for HiveOS and GPU mining. So while I won't be buying another one of these, I can't say there's anything wrong here that a little computer building knowledge, a headset flashlight with magnification and some patience can't solve.

After reading these reviews very skeptical.I could could only get 6 3060tis to work, 4 3080s and probably meant for smaller cards like 580s 10 series.Pros: case is sturdy and decentHoles lined up fine for mountingProbably the best budget one I’ve found on Amazon (I’ve bought them all)-fans aren’t bad kept cool nothing major here or high end. Server psu will obviously make noise.-good for 4-6 cardsCons: won’t fit a lot of higher end cards their description is semi accurate but won’t fit 8 3060tis-middle bracket only works for server psu don’t put a Corsair etc in it too bulky and won’t clamp down clean without zip ties-case is meant for about 6 cards unless you use small ones like 580s 10 series DONT buy for bigger cards unless you are okay with 4-6

Came quick! Set up took me a couple hours to figure it out correctly. SSD came pre installed (No OS tho it’s blank but apparently offer a windows 10 download) Not super loud which is a plus, temps are good and 3070s fit w/ 4 fan case. Been up and working for a few weeks now. Only small complaints are the power button included needs to be longer it barley reached. System is very very slow in windows and hive os. Overall great buy! Love the riserless closed system much better than open air rack.

This is hot trash, and can't be even opened as factory screws come stripped.That or this is used garbage.

This rig operated on the first start up