I want to decide on my rig before the discounts so I can buy the parts discounted plz help
- Thread starter wtfnow
- Start date
big bang marshal has 8 pci e slots.
My main problem is Im not sure wheteher to get the cheapest cpu or the best.I'd choose the cheapest one cuz I'll just gpu mine but I heard that better cpu enables you to have a better gpu overclock.What do I get?
Pete_the_Puma
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- Mar 4, 2012
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Code:
Plz understand that I want to just gpu mine so I want the most cards per board and dont care about the cpu etc.Any recommendations??
Mousemonkey
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Or because it has been asked recently.
http://www.tomshardware.co.uk/answers/id-1842979/crossfire-radeons.html
k1114
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But if you want 8 gpus, they have to be single slot and you get more performance for the price of 4 dual slot cards.
For example you can get 7750 which is $65 for 1gb gddr5 (so $520 for 8 cards) or $55 for ddr3 ($440) that's in total 4096 stream processors at 800mhz, 4500mhz mem clock (gddr5). But you can get 7850 for $110, 2gb gddr5, ($440) for the same amount of stream processors but these are clocked at 900mhz, 4800 mem clock. Not to mention saving $100 on another mobo.
For example you can get 7750 which is $65 for 1gb gddr5 (so $520 for 8 cards) or $55 for ddr3 ($440) that's in total 4096 stream processors at 800mhz, 4500mhz mem clock (gddr5). But you can get 7850 for $110, 2gb gddr5, ($440) for the same amount of stream processors but these are clocked at 900mhz, 4800 mem clock. Not to mention saving $100 on another mobo.
Shneiky
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- Aug 21, 2011
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Big bang Marshal runs in a 2x16 (2 slots, 16 lanes) 2x8 (2 slots 8 lanes) and 4x1 (4 slots 1 lane) configuration. That renders the last 4 cards barely functioning, what is left of usable. This leaves you with 4 cards, as any other motherboard brand's pricy offerings. 8 cards, running at full potential are impossible at this time, deal with it. Anyway, after 8 cards, 2 KW PSU, what does 100 bucks more or less for CPU matter?
I'll use 7950 cards do they take up two spaces?
1) I don't care about the xMultiplier because I'll only use them for mining
2) It matters because I want to have the best mining performance per unit of money invested.And I'll not buy all cards at once but upgrade when possible.
1) I don't care about the xMultiplier because I'll only use them for mining
2) It matters because I want to have the best mining performance per unit of money invested.And I'll not buy all cards at once but upgrade when possible.
That is a good find I appreciate it but according to wheretomine.com coinchoose.com and others there are more profitable coins to mine than bitcoin and they are scrypt.But thre are some reasons people still mine less profitable coins like they hope the coin's value will raise enough that they will have the most profit.
- Mar 14, 2013
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No, GPU overclocking is down to the cooling, the voltage you can deliver to the GPU and the capability of the GPU chip itself.
The CPU should only be a limiting factor if it can bottleneck the process you are doing.
I dont really know about mining, but I would hazard a guess that any mid range CPU would be fine (i.e enough performance to keep the GPUs working 100%, but not overkill).
k1114
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The cpu still feeds the gpus which tends to be a single threaded process so would suggest intel. The z87-ws would be the cheapest mobo if you want to go with a current gen cpu with 4 pcie slots which are at least x8 speeds. http://www.amazon.com/dp/B00CRJSUSG
Avro Arrow
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1) The xMultiplier matters because you might as well be using an HD 5450 in it. The bottleneck will be so great that you'll get no extra performance from any other card.
2) If you want the best mining possible, then get a server board, a server CPU and then play with it. That's the only way I can think of that you can possibly get this rig done. Consumer-grade parts will not do what you are seeking no matter how much you want them to. It's just not happening, end of story.
k1114
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Server components are no different other than ecc support which won't help. Pcie 2.0 x1 will bottleneck but 5450 performance is quite the exaggeration. Egpus use pcie 2.0 1.x and see typically 50-70% performance of the card. 7790 performance at worst on a 7950 is pretty bad though. But this isn't a concern as now he's going with 4 cards and not 8.
What if I use this about $80 board? It has six PCI-e slots.Would there be some problems if I want to use radeon 7950 for all of the sluts?
I've read to use powered PCI-e risers so the board wont burn.How do I use them?
What does he mean when he said that using no case might short my board?
I've read to use powered PCI-e risers so the board wont burn.How do I use them?
What does he mean when he said that using no case might short my board?
k1114
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There is no such thing as server graphics cards. Servers don't have graphics cards. There is no difference in server components other than ecc (and other features you won't use). They do not perform better. They do not last longer. They are clocked lower for less heat and power but you can do that with consumer parts. Saying "this" mobo and not saying what "this" is isn't helpful. No one has mentioned cases. Are you talking in the wrong thread? Though using no case will not short the mobo. Pcie bandwidth does matter for any gpu heavy task. Gpus get data through pcie and if the data is being bottlenecked, the gpu can't perform at its best.
k1114
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You're right mining won't saturate even x1. Excuse the mistake. Though mostly just fools on any forum including bitcointalk. 
3) cpu rated spec, I think he was asking what that meant. On that h61 it's going to be 1333/1600 depending on the cpu. I'm guessing you're going with a lower end pentium g or celeron g?
3) cpu rated spec, I think he was asking what that meant. On that h61 it's going to be 1333/1600 depending on the cpu. I'm guessing you're going with a lower end pentium g or celeron g?
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