Help with multi-gpu crypto mining

[Nohbodhi]

I think there is an easier way to show my rig but this is my first time on LTT forum

 

My rig:

R5 3600 (4.2 GHz)

 

B450 Tomahawk (non-max)

 

Rx 5700 (non-xt, flashed to xt, under clocked when mining)

 

3000 mhz lpx ddr4 

 

700w evga bronze non-modular 

 

And enough fans and good enough case to cool 2 relatively low power cards

 

One of my friends wanted to get into PC gaming after I built mine, I wanted to build him one but finding parts in my area at the time was difficult so I just had him buy a prebuilt and helped him upgrade his gpu (from a 5500 xt to a 5700) He gave me his unused 5500 xt for free (good friend right?) so now I have an extra gpu.

 

Everything I know about computers is from watching LTT and other tech videos so my knowledge is rather limited; and I've only ever built 1 pc, my own. I was able to flash my gpu, and oc my cpu though, so I'm not a complete idiot. I started mining recently, as per recommendation from King Lienus, and as I get back to school my gpu has a lot of down time even when I'm using my pc. I googled and know the non-max tomahawk can support 2 AMD gpus, but I know little else about multi-gpu. Can I just plug and play? Do I need to buy anything else? Will it interfere with my flashed 5700? Should I look out for anything when trying to set up multiple workers? 

[Letgomyleghoe.]

Disclaimer I don't know much about mining but from the little I do know

1 hour ago, Nohbodhi said:

Can I just plug and play?

Yes assuming you set up another miner or add the 5500xt to the current miner.

1 hour ago, Nohbodhi said:

Do I need to buy anything else

Nope

1 hour ago, Nohbodhi said:

Will it interfere with my flashed 5700?

Probably not.

 

1 hour ago, Nohbodhi said:

Should I look out for anything when trying to set up multiple workers? 

Don't mine myself so can't really help you there

Again don't take this as 100% rule as I don't mine myself and I just base this on the few times I visited some mining subreddits.

[Mick Naughty]

Just make a profile for that card as well when it comes with what ever gpu program you are using. 
Undervolt, memory overclock, fan profile ect. 
 

Aside from that not much, just start what ever miner you are using and it will take care of the rest. Assuming you aren’t using something like hiveos. 
 

I wouldn’t use multiple miners, but it wouldn’t hurt. I use one per system. Another miner means a potentially higher dev free or the opposite. 
Unless you mean the same miner multiple times, you can’t run multiple instances of the same one.