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Other => Beginners & Help => Topic started by: atomicswan27 on May 16, 2012, 02:00:48 AM



Title: CPU
Post by: atomicswan27 on May 16, 2012, 02:00:48 AM
I am going to be building a new mining rig, but i don't know if i should spend a lot of money on a cpu. What CPU do you use?
Thanks for any help,
Sasha


Title: Re: CPU
Post by: nyan.kitty1024 on May 16, 2012, 02:15:51 AM
The CPU for a mining rig largely doesn't matter. You'll be getting(by far, most likely) most of your hash rate from the GPU's. If you have to choose between a GPU and upgrading the CPU, choose the GPU.


Title: Re: CPU
Post by: Mickster on May 16, 2012, 07:54:51 PM
Does CPU matter. I am going to be building a mining rig, but i don't know if i should spend a lot of money on a cpu. What CPU do you use?
Thanks for any help,
Sasha

Almost any CPU should work. Just make sure it's compatible with your motherboard!


Title: Re: CPU
Post by: swissmate on May 16, 2012, 09:23:24 PM
AMD Sempron, just costs like 30 Euros


Title: Re: CPU
Post by: lafiamafia on May 17, 2012, 11:33:01 AM
As long as your CPU isn't absolute shit-tier you'll be fine, but it does help to have more cores when you're running three cards off of one mobo.


Title: Re: CPU
Post by: John (John K.) on May 17, 2012, 02:11:59 PM
I ran my farm of 4 -5 cards per rig with semprons each, no exception.


Title: Re: CPU
Post by: Morblias on May 17, 2012, 03:43:05 PM
I got a Sempron 145 for my rig. They work great and are cheap.


Title: Re: CPU
Post by: David_Benz on May 17, 2012, 09:48:56 PM
DO

NOT

CPU

MINE


Title: Re: CPU
Post by: Blazr on May 17, 2012, 09:53:22 PM
DO

NOT

CPU

MINE

Unless its Litecoin and an i7.


Title: Re: CPU
Post by: KIDC on May 18, 2012, 01:25:04 AM
Hi atomicswan27,

If you're using Litecoin then you're going to probably want a high-performance CPU with a low latency cache design and good overclockability, like an Intel i5 or i7. Intel's i5-2500k is a great choice and is what I use (not for mining though). If you're looking at going AMD then you may want to go for a Bulldozer based chip, as I believe it has extra integer processing power, and integer factorization is what bitcoin and litecoin both use for mining. I'm not very well versed in AMD's current lineup or tech so you may want to ask somebody else about that.

If you're mining regular bitcoins then CPU mining will be a huge waste of time a money. You'll want to run GPUs (video cards) or FPGAs hosted on a computer.

I myself run two full towers as dedicated 24/7 miners each with one GPU. The processors I use for both are Celeron 430 - http://ark.intel.com/products/29735/Intel-Celeron-Processor-430-%28512K-Cache-1_80-GHz-800-MHz-FSB%29. They are only 35W TDP and so are low heat output and could even be run fanless if you have a large enough heatsink. You can get them on ebay for very cheap (that's where I got mine): http://www.ebay.com/itm/Intel-Celeron-430-SL9XN-Single-Core-Desktop-CPU-Processor-1-80GHZ-512-800-06-/150818847996?pt=CPUs&hash=item231d80fcfc

If you're running AMD board(s) - as others have said the Sempron 140 or 145 is a great choice and is what I use in another box that serves as a simple fileserver.

Hope that helps :)