I hate to make for redundant questions, but I think this one is different enough to warrant another visit in 2017.
I have a MSI Lightning 290X and bought a couple of Gigabyte Windforce 290X's on eBay for the purpose of fooling around with crypto mining.
For the scope of this question, we'll just discuss my use case of occasionally wanting to game on TWO of the cards.
I have an EVGA SuperNova NEX 750 watt PSU capable of 61A on the 12V rail. (here's the link to be certain: https://www.newegg.com/Product/Product.aspx?Item=N82E16817438027)
Using a Ryzen 5 1600X at 3.9Ghz @ 1.375V and the two GPUs at 1040mhz core and 1250 memory, I thought I might be able to get away with the 750W just until my HX850i arrived.
Planetside 2 was VERY stuttery so I decided to try Rise of the Tomb Raider. This game would crash and give me something about a GPU Hung error.
My question is, would insufficient amperage to the GPUs cause them to crash like they did in Rise of the Tomb Raider? What about the horrible stuttering I experienced in Planetside 2? I play that one the most and was really hoping the crossfire upgrade would allow me, not only to mine, but bump up my gaming performance as well.
Lastly, I'm now concerned the HX850i I ordered may not be enough for me to comfortably sit at an efficient operating level (you know, 45-60% PSU load). 1200W PSUs are expensive, and at that point I'd consider selling the 3 290X's, forgetting mining, returning the HX850i, and just buying a 1080 Ti and keeping the 750W EVGA haha
What are the professionals' opinions?
I have a MSI Lightning 290X and bought a couple of Gigabyte Windforce 290X's on eBay for the purpose of fooling around with crypto mining.
For the scope of this question, we'll just discuss my use case of occasionally wanting to game on TWO of the cards.
I have an EVGA SuperNova NEX 750 watt PSU capable of 61A on the 12V rail. (here's the link to be certain: https://www.newegg.com/Product/Product.aspx?Item=N82E16817438027)
Using a Ryzen 5 1600X at 3.9Ghz @ 1.375V and the two GPUs at 1040mhz core and 1250 memory, I thought I might be able to get away with the 750W just until my HX850i arrived.
Planetside 2 was VERY stuttery so I decided to try Rise of the Tomb Raider. This game would crash and give me something about a GPU Hung error.
My question is, would insufficient amperage to the GPUs cause them to crash like they did in Rise of the Tomb Raider? What about the horrible stuttering I experienced in Planetside 2? I play that one the most and was really hoping the crossfire upgrade would allow me, not only to mine, but bump up my gaming performance as well.
Lastly, I'm now concerned the HX850i I ordered may not be enough for me to comfortably sit at an efficient operating level (you know, 45-60% PSU load). 1200W PSUs are expensive, and at that point I'd consider selling the 3 290X's, forgetting mining, returning the HX850i, and just buying a 1080 Ti and keeping the 750W EVGA haha
What are the professionals' opinions?
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