I am planning on building my first mining rig. The sole purpose of building this is for Mining. Which means, I would like to invest as much as possible in the GPUs and at the same time other components like CPU/RAM shouldn't be a bottleneck for my GPU.
I also plan to have multiple GPUs on my M/B. It would be 2 GPUs, probably, ATI Radeon HD 5870.
Here's my config and after reading several threads on the forum, I have decided to for it. I am not mentioning the exact model names of the components since I would purchasing them from the local store here. So, what might be readily available online may not be at my local store. However, you can suggest me brand names to go for. For instance, motherboards from ASUS, Gigabyte or something like that.
Thanks in advance for taking the time to go through this thread and providing me your suggestions.
Here's the config I have decided for my mining rig:
CPU: AMD Sempron 140
If the above is not available then a dual core Athlon Processor.
GPU: ATI Radeon 5870 (2 of them)
RAM: 2 GB @ 1333 Mhz
HDD: 500 GB @ 7200 RPM (there's not much price difference here between 250 GB and 500 GB)
PSU: at least 850W of Power Supply (80 plus bronze). How much difference would 80 plus Gold make? Some brands, Cooler Master, Corsair.
UPS: What rating to go for? Would a 600 VA be sufficient?
OS: Windows 7 64 bit. Would a Windows 7 be able to run on the config above, considering the low end CPU and RAM? I am more comfortable with Mining on Windows 7 platform and already have a GUI Miner running on Windows 7 with an ATI Graphics Card.
You forgot what mother board your going to use. If you think you will ever expand the amount of cards running in this one machine I highly recomend the 890FXA-GD70. I can confirm it works with 5 cards and most likely 6.
850 watts is fine (probably more then you need for your specs didn't calculate it though) but if you ever want to expand you'll have to waste more money for an upgraded psu. As for the gold go for that because you will be saving money on each electricity bill and in less then a year the psu will pay for its self.
If you want to cut costs some more I'd recommend running linux and dropping to 1 gig of ram. With linux you could also run off an 8 gb flash drive which is much cheaper then 500 gb's. Flash drives also require less electricity.
Your going to need a case of some kind I personally use the case design in the hardware section that's stickied. Costs around 50-60 bucks to make and it keeps the cards wicked cool.