<p>I have found that the cheapest way to hold many cards is to put them in old motherboards.  I have been buying motherboards off Ebay for $45, getting a $5 processor, a $100 PSU and connecting 4 cards per rig.  I currently have 6 of these rigs running and they are great.  As for heating I have built custom cases for my cards so they don't overheat.  Using this method I've brought the cost to run each card down to about $50.  In other words, it will cost about $50 per card to put it into a computer if you build your own off Ebay.</p>

<p>Another option, which is definitely more expensive but probably the type of thing you were hoping to find is a PCI Express Switch.  These things exists and are how big companies can connect 20+ GPUs to a single computer, but they are prohibitively expensive in most cases.  </p>

<p>Below is an example of my mining tower, if you would like more information on exactly what I buy and the economics behind it please don't hesitate to leave me a message.<br>
<img src="https://i.sstatic.net/BaOIp.jpg" alt="enter image description here"></p>

CC BY-SA 3.0
2016-03-29T05:05:03.860Z
what are you using to connect the cards to the board (risers?) .. do you do any PCI to PCIe adapters?
farinspace
CC BY-SA 3.0
2013-12-16T08:03:57.297Z
2013-12-16T08:03:57.297Z
tbenz9
<p>I have a serious stash of radeon cards, some great, some fairly crap. I figure with them all running it all adds up.</p>

<p>Problem is, running a PC for each card will get expensive, so is there any known rig or way to mine using a bunch of cards and NOT have them all plugged into a PC of their own?</p>

<gpu-mining><mining-setup>
Is there a way to mine with many graphics cards without having a PC for each one (or two)?
Chris
# Is there a way to mine with many graphics cards without having a PC for each one (or two)?

(Asked by: username_0 on 2013-12-16)

I have a serious stash of radeon cards, some great, some fairly crap. I figure with them all running it all adds up.

Problem is, running a PC for each card will get expensive, so is there any known rig or way to mine using a bunch of cards and NOT have them all plugged into a PC of their own?

**Tags:** gpu-mining, mining-setup


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## 1 answers

### Answer by username_1 on 2013-12-16. Score: 2 | Accepted answer

I have found that the cheapest way to hold many cards is to put them in old motherboards. I have been buying motherboards off Ebay for $45, getting a $5 processor, a $100 PSU and connecting 4 cards per rig. I currently have 6 of these rigs running and they are great. As for heating I have built custom cases for my cards so they don't overheat. Using this method I've brought the cost to run each card down to about $50. In other words, it will cost about $50 per card to put it into a computer if you build your own off Ebay.

Another option, which is definitely more expensive but probably the type of thing you were hoping to find is a PCI Express Switch. These things exists and are how big companies can connect 20+ GPUs to a single computer, but they are prohibitively expensive in most cases.

Below is an example of my mining tower, if you would like more information on exactly what I buy and the economics behind it please don't hesitate to leave me a message.  
![enter image description here](https://i.sstatic.net/BaOIp.jpg)

> **Comments:**
> **username_2**: what are you using to connect the cards to the board (risers?) .. do you do any PCI to PCIe adapters?  

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