Quote from: BogdanCo on November 08, 2018, 07:15:41 PM

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Quote from: KhorneFlake on November 01, 2018, 11:38:17 PM

I just wanted to report that I've solved my problem with one of my Vegas being quite spastic, like less than half hashrate of its sibling. My Windows key was deactivated for a while now, and I finally contacted the supports and they helped me reactivating my Windows copy. I got an update, and after restarting both cards are running at the same speed:

https://i.imgur.com/Sxk4zwu.png

Edit: Um, it seems I started celebrating too early. My 4th miner report shows it dropped to around 1100h/s again...

you need to cool those vegas, set the fan to 3000rpm.
That is why the hashrate drops, hbm gets too hot

Both are pretty much the same temps wise, maybe the upper one has a degree more.. Much better now since I switched to the Threadripper platform and there's more space between them, on the mainstream Ryzen mobo they were too close.

Use Soft Power Play Tables to get Memory to 1100 Mhz if possible and also voltages a little down, you should get ~1900 H/s out of one Vega and temp around 50 degrees Celsius (depends of the Vega model). Keep in mind the HBM is ~10 degrees hotter than what you see on the screen.

Hey, I just wanted to report that it seems I've fixed my issue. My X399 Taichi originally came with the 2.00 BIOS version, I just updated to the 2.30 Bridge BIOS and both cards are now working fully. Imagine that Hopefully this will stop thread_stuck_in_device_driver and video_memory_management_internal BSODs, but eh.

Meh, once again I celebrated too early This time hash on the second GPU started dropping after a couple of hours, and its still around 1k or less, even if I restart my PC. WTH already. I'll see what will happen when I reinstall Windows.

How much is the temperature on the cards?

It's written - ~70C. HBM must be hell-hot that way. I wonder why does that vega still alive.
I'm running my V64 at 40-45C GPU and about 45-50C HBM at 1478/1100 by HWinfo.