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Is anyone using RX 480s with powered risers? My system runs for about 8 hours then reboots. Plus the control center is the newer one and doesn't show temps.

I have the molex powered risers. That is connected to the motherboard PCIE slots as well. That is safer.

I ordered some they should be here today or Tues. Waiting for them before I add the 4th card.

I'm still waiting for the 4 Gb 480. Maybe in a week or so, right?

ATTENTION !!

Do not buy RX 480, especially not for mining

PCI-E slot died with RX 480
https://community.amd.com/thread/202410

Thanks for the heads up.. I was looking at them hard recently till they came with the speed at which they mined at.. I wasnt too impressed. Now this news is depressing.. Ill get some more 290x and undervolt them for the time being. They seem like real workhorses. Ill let the bugs get worked out of these first:)

Best Regards
d57heinz

On my test rig, I have a Sapphire RX-480 on the PCI slot of ASrock H81 Pro BTC, with both molex and PCI-USB3 riser powered from PSU (EVGA-G2-1300).

According to Kill-A-Watt meter it shows total rig is consuming 1.2amps and 195watts.

Running CDM v 4.7 on Win7, Crimson 16.6.2 for last 22 hours at 24.5MHs out of the box - no OC or undervolt!

Afternotes:

1. on ethpool.org, it shows 30MHs (effective hashrate) and 24.8MHs (reported hashrate).
2. I will getting 5 more cards to this rig tomorrow, and will be using the powered risers.
3. At this time, one 1 x 480 directly on PCI slot.

Running 1 test Sapphire 480 8 GB on H81 Pro BTC PCIe slot before transferring them to a 6 card rig. I increased memory to 2100 MHz with afterburner it automatically increased core clock to 1265 MHz. Getting 26.1 MH/s at 170 Watt. It's been running for over 3 hours stable. No additional molex connected to the motherboard, if it survives 24 hours I would be very doubtful of the aforementioned claim of 480 killing PCIe slot. And yes it doesn't make jet engine turbine noise even at 100% GPU load.

Edit: 2300 MHz mem clock gives 28.5 MH at the same wattage, overclocking to the max is certainly a possibility with the updated MSI AfterBurner

I would like to know the results when you transfer that to 6 cards rig with 6x RX 480. Good luck.

Sure, I want to make sure it is stable before I transfer, so far so good. My other 5 card 390s (due to single PSU limitation otherwise it would have been 6 card rig) been running stable for months and hopefully 480 rigs won't be any different. They are all running Claymore's miner in single ETH mode. Stay tuned!