<p>I've just setup GUIMiner, I have two graphics cards, and they are both running. However, one is getting ~400 Mhash/s, the other is getting ~10 Mhash/s.
The monitoring of the GPU's also shows one running at 95%, the other at ~5%.</p>

<p>Is there an obvious reason for this?</p>

CC BY-SA 3.0
2015-09-17T13:30:27.977Z
I rebooted my machine, and now both GPU's are running at ~50%, with GUIMiner reporting speeds of ~200Mhash/s for both workers.
Awoken
CC BY-SA 3.0
2015-09-17T14:46:42.290Z
We don't use GPU miners today, the amount you can mine with one is many orders of magnitude below the sensible minimum output size of a Bitcoin transaction. They have been irrelevant for 3 years now, and support has been removed from all updated software.
Claris
<gpu><guiminer>
GUIMiner not utilizing 2nd GPU
Awoken
# GUIMiner not utilizing 2nd GPU

(Asked by: username_0 on 2015-09-17)

I've just setup GUIMiner, I have two graphics cards, and they are both running. However, one is getting ~400 Mhash/s, the other is getting ~10 Mhash/s.
The monitoring of the GPU's also shows one running at 95%, the other at ~5%.

Is there an obvious reason for this?

**Tags:** gpu, guiminer

> **Comments:**
> **username_0**: I rebooted my machine, and now both GPU's are running at ~50%, with GUIMiner reporting speeds of ~200Mhash/s for both workers.  
> **username_1**: We don't use GPU miners today, the amount you can mine with one is many orders of magnitude below the sensible minimum output size of a Bitcoin transaction. They have been irrelevant for 3 years now, and support has been removed from all updated software.  

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## 0 answers

