This is a very unusual offer: just now, I stumbled upon a very high-end computer component on Amazon with a huge pricing error ($125 instead of $800-900 as on Newegg). I am not going to tell what it is except it is a PCIe card and NOT a graphics card (but something that is still common enough that Amazon and Newegg carry dozens/hundreds of different models of this type of device). The item condition is new. There are only 8 in stocks. I am definitely buying one for me, and one to resell.
Send me 1 BTC to get a bit more information, I will reveal the category the item belongs to: sound, network, raid, ssd, or firewire card.
Send me another 14 BTC and I will send you the URL to the item on amazon.com.
Email me or PM me. I will refund you if the pricing error is fixed, say within 5 minutes after the BTC payment receives 1 confirmation. This is a legitimate offer. Check my reputation on bitcoin-otc (see sig).
Are you fucking kidding? $5 to know what the link is for, $75 for the link? Douchebag. I agree its really lame. I'm almost 100% sure this is what he talking about btw: http://www.amazon.com/HighPoint-RocketRAID-2782-PCI-Controller/dp/B0058TLB3810 secs of google shopping found this. List Price: $849.99 Price: $114.80 You Save: $735.19 (86%) edit: It's going for 850 on newegg too so the cats out of the bag... http://www.newegg.com/Product/Product.aspx?Item=N82E16816115103 |
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I need an atx mobo mounting panel. Give me a realistic price and we can do business. BTC or paypal.
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if you're not affriad of opening it you can do the same on the psu,
Cant you still get electrocuted even when the powers unplugged if you don't know what your doing? I wouldn't trust myself messing with the power supply. |
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Suggest you wait a couple of months and reassess then before investing serious money in this project, unless you're just doing it for fun. A new generation of GPUs is coming out, as well as commercial FPGAs. The difficulty/price ratio is likely to get harder.
The kind of machine he is building isn't really serious money as long as you have a job. He is probably looking at around a grand investment but that really isn't that much. As for the fpga's they are a joke. Unless you live in europe where the price for electricity is .30 cents + it will take you years to recoup the cost you gain from the lower electricity. I'll give you an example say you have that X6500 from the marketplace ( https://bitcointalk.org/index.php?topic=40058.0) and a 5830 the card that consumes a huge amount of electricity. If we use my electricity cost (8.5 cents a kwh) it costs the x6500 .03 cents a day and the 5830 costs 41 cents. Now I'll calc how many bitcoins you will generate a day by each. 5830 - 0.1891 BTC X6500-0.1031 BTC Lets say the difficulty stays the same for simplicity sake. Two years from now the 5830 will have generated 138.043 btc and the x6500 75.263. Lets say the price is still 5.5 2 years from now. That's $759.24 for the 5830 and $413.95 for the x6500. Now we deduct original cost of equipment. 759.24-130= 629.24413.95-610= -196.05After two years you still have lost money with fpga's. So like I said at the beginning fpga's are a waste unless you have ridiculously high costing electricity. |
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@mike: thanks for the mother board suggestion. I'll check it out in my local stores.
I would prefer to setup my mining rig on Windows as of now. Next time, I'll be going for Linux definitely.
@deslok: I was thinking of the same. Comparing the hashing rates as they appear on the wiki:
Each 5870 Card = 400 Mhashes/sec
5870 x2 = 800+ Mhashes/sec
Each 5970 Card = 700 Mhashes/sec approx.
You're a little off on your numbers 5870's can usually generate about 440 especially if theres only two of them in a case. If its a reference card you might even be able to push higher (the limiting factor tends to always be heat.) As for the 5970 you can expect about 800 megahash without too much heat. As for which one you can get I'd recomend the 5870 if you can get them around 200 if not go for the 5970. Regarding the processor, AMD Sempron 140 or a dual core Athlon. I want to know if there will be any issues of bottleneck if I happen to put 2 GPUs on the board?
You wont be bottlenecked I run 5 5850's off a semperon and I get good results. For GPUs. On the wiki, it shows a wide variety of Hashing speeds for the same model of the GPU. I wanted to know, what are the good brands for GPU?
XFX, Zotac, Gigabyte are some of the ones we get here. Which ones would you recommend for an ATI Chipset?
I personally like saphire card they tend to be reliable. I've heard xfx is good too but don't personally own one. For the most part though there wont be much difference between cards except when it comes to reference/non reference. Reference cards have the fan to the far right and they blow all the air out the back of the case. Non reference usually tend to have their fan in the middle and blow hot air every where so air will be reused which makes the cards run hotter and makes it harder to overclock. |
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Hi All,
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. |
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Buyer dropped out. Anyone else?
I could do 28 btc if your willing to do escrow. |
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Love the thread crapping from a newbie but as I posted above that only works for 1 card and its an oem card anyway so there is no warranty. |
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AMD HD5970 Radeon HD 5970 2GB 256-bit GDDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card - OEM
Average Rating 5 out of 5 eggs(5 reviews) Write a Review
$100 off with promo code HARDOCPX921D, ends 9/27
That only works for one but thank you. |
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You're a bit late to the party try searching a bit before you post. The thread im quoting is like 10 threads down from this one |
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my new record on non-ref xfx 5870 1.6 = 980/341 = 443mh/s
Yes but for how long? I can push my saph vapor x 5870 to 975 for a while, but then drop out... I run them at 950/300 get a constant 423-425 Mh out of them That doesn't seem too unrealistic. For non reference that's definitely pushing the limit though. I believe the record for a reference is like 502 but that wasn't held for a long period of time. I'm sure you can easily get 460 stable in some cases when you use a reference card. |
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Nope. Either you pay off the rig, or you accumulate bitcoins, not both. Again you ignore that the money you spend on electricity (and hardware) could be spent buying bitcoins.
I'm not giving people advice here you do realize that right? I'm giving examples of what people can do. Also unless you are day trading mining is better long term because eventually you will have generated enough bitcoins to cover the initial investment and all the electricity. After that point anything generated is more then what you could have received from investing one big lump sum in coins alone. |
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And there is no models to avoid? they all perform relatively in the same ballpark?
Yeah, there is no big difference between them. Some cards might be factory overclocked, giving you a small guaranteed overclock, but how high these cards go is more dependent on your luck than on the brand. The only thing Id pay close attention to is the cooling solution (unless you plan on an aftermarket cooler anyway) and perhaps warranty. While a majority of cards are the same there can be big differences. A normal saphire 5850 can usually get around 380 while a saphire toxic 5850 can get 400+. Another example is some 6870's can only downclock their memory slightly. Also reference is always better assuming the price isn't outrageous. |
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Calculating ROI by speculating on future BTC value is fallacious. If you want to speculate, you can just buy BTCs with dollars. The same dollars you need to buy hardware and electricity cost, so they compete.
Thank you captain obvious. I was just pointing out the reasoning of why people who are mining would want wide spread adoption. Also mining is better long term because eventually you pay the rig off and generate bitcoins only for the cost of electricity. |
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Hello I have tried to part out my miners but decided that this might be the best option as selling each of parts is hassle. I am trying to unload all 6 of my mining rigs. Specs are as follows 6x MSI 890FXA-GD70 6x 1GB 6x 40GB Sata HDD 6x 1000w Rosewill PSU 12x PCI-E Risers 20x Sapphire 5830s 4x ATI 5850s That is a total of 6 rigs with windows 7 on all hard drive ready to mine ( guiminer, bithopper on server1) My asking price is $3500...or the equivalent of BTC.  That's a really good deal. Good luck selling but I doubt any one is willing to sink 3,500 especially with the way bitcoins is doing at the moment. |
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Ironically the thing that people want the most will result in even LOWER profits for miners. If bitcoin takes off and becomes very mainstream and daily volatility falls then the risk in mining decreases and economic theory tells us the margin (profit) will decline also.
This isn't entirely correct. In long term I agree it will make mining less attractive but any coins mined and saved before this will make profits even greater. I'll give an example and before I do I want to point out that I don't think this is realistic any time in the near future its just an example. Say you started mining in june and by october you have saved up 300 bitcoins. The price of bitcoins is hovering around 8 dollars making that worth $2,400. Then out of know where newegg and amazon decide they want to start accepting bitcoins. The price skyrockets to $30 because of all the news bitcoins is getting now. That 2,400 in bitcoins is now worth 9,000. So the early investors (us) get a pretty damn big payday. I don't plan to get rich off bitcoins but anything like that would make me extremely happy and I'm sure I'm not the only one in this boat. That's why people want wide spread adoption. |
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"Both for $200. That's about 2.5M/h per 1 USD."
You were able to get close to 500mhash out of those two cards?
Reason I ask, I recently purchased some 5770s, but was expecting only 210-220mhash/card?
Thanks.
-ST
One in his deal is a 6870  |
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You need to relax dude half the posts in this thread are by you. I hope I'm not the only one that thinks you need to shut up and stop posting minute to minute updates. There's a website people can go to if they care that much.
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