The rig specs are:
I tried modding the BIOS on 2 of the GPUs following this guide: https://www.youtube.com/watch?v=_O1ZnLLz2qI, the results I got were (this is with the 2 GPUs spaced out):
When I put all 3 GPU cards close together, it does work, but the temperatures immediately jumps to 83c when mining (!!) - this is with all 7 fans installed and I tried both with the case open and closed. These cards do seem pretty thick and there is almost no clearance for the fans
- in hindsight, maybe blower style cards would work better in this rig?
In any case, since I only have 3 cards, I thought ok, no problem, I'll space them out. Like this:
https://www.dropbox.com/s/heeeesxr4eecf2z/IMG_9488.jpg?dl=1
However, when I do that, 1 of the cards stops working - I tried both Windows 10 (third card does not show up in NiceHasLegacy) and Ubuntu 16.04 and 18.04 (it hangs for a few minutes during boot, then boots but using any OpenCL app freezes).
Any ideas how to solve that? - Is there some BIOS setting I'm missing?
- Motherboard: Onda D1800
- Case: https://www.ebay.co.uk/itm/6GPU-Mining-Miner-Rig-Frame-Case-For-ONDA-D1800-BTC-Motherboard-Crypto-Currency/302727464547?hash=item467bf68663:g:wdUAAOSw4EhaasvY
- Fans: 7 x these: https://www.amazon.co.uk/gp/product/B00NTUJN4C
- PSU: EVGA 1000 GQ
- GPUs: 3 x Sapphire Pulse Radeon RX 580 8G: https://www.amazon.co.uk/gp/product/B071CQ5LRV/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
- Memory: 4GB Kingston DDR3L
I tried modding the BIOS on 2 of the GPUs following this guide: https://www.youtube.com/watch?v=_O1ZnLLz2qI, the results I got were (this is with the 2 GPUs spaced out):
- Modded: 27.8 Mh/s - 76c - 154W - 1406 RPM
- Unmodded: 25.7 MH/s - 76c - 154W - 1375 RPM
When I put all 3 GPU cards close together, it does work, but the temperatures immediately jumps to 83c when mining (!!) - this is with all 7 fans installed and I tried both with the case open and closed. These cards do seem pretty thick and there is almost no clearance for the fans
- in hindsight, maybe blower style cards would work better in this rig?In any case, since I only have 3 cards, I thought ok, no problem, I'll space them out. Like this:
https://www.dropbox.com/s/heeeesxr4eecf2z/IMG_9488.jpg?dl=1
However, when I do that, 1 of the cards stops working
- I tried both Windows 10 (third card does not show up in NiceHasLegacy) and Ubuntu 16.04 and 18.04 (it hangs for a few minutes during boot, then boots but using any OpenCL app freezes).Any ideas how to solve that? - Is there some BIOS setting I'm missing?