My point was that you should wait for the best card you can purchase.

If this is true then it changes things. I was going with hard facts I found on the web. I also get top megahash per sec out of my 5830's (320) without watercooling and it runs around 68c so I assumed it would be fairly easy to reach this mark.

I'm not saying the 5830's aren't the top in terms of megahash per dollar but you should still pay for only the most efficient cards you can get. Why pay 130 for the same card that comes in stock at 110 every couple of days?



My question to you is why do you have 3 servers with 3 different cards? If you knew you were going invest heavily into bitcoins I would think you would pick the best card you could so you saved yourself the most money possible.

Also basing it off experience is like saying I know this works trust me. Basing it off research is like saying here are some articles that list bench marks you can figure out for yourself what the best card is.

I just noticed you said that and I don't know where you did your numbers but acording to newegg the cheepest 6970 is $335(http://www.newegg.com/Product/Product.aspx?Item=N82E16814161356)

I checked on mining hardware comparison(https://en.bitcoin.it/wiki/Mining_hardware_comparison) the highest noted megahash for a 6970 is 423 while a 5850 on that same site is 392. A 5850 costs 161 while a 6970 is 335.
335/161 = 2.08

That means you can get two 5850's for the price of one 6970.
6970 megahash=423
5850 megahash=392*2=784
423<784

Then if you want to look at power consumption(https://spreadsheets.google.com/spreadsheet/ccc?key=0AsSwOT3E1XTGdGtpa1BQcmJLN2x6TG1MRmxzb29BeFE&hl=en_US&authkey=COWC8toK#gid=0)
A 6970 gets 1.472 megahash per jule while a 5850 gets 1.818.
1.472<1.818

So please do some research before you try and say statements such as that.

In order to tie the 5850 you would need to get 340.6 megahash out of your 5830 I highly doubt some one has reached this with a 5830. If they got the full 3% which I don't think they would have 330*1.03=339.9 which is still less. There's also the possibility that this 5850 record didn't include the 3% increase.

If some one can supply that I would too though the highest I've ever heard any one get is around 330 megahash with a 5830.
330/130=2.538
2.538 is still less then 2.62

see above I edited my post.

I was just going for simple numbers but the person below is getting 423 megahash with his 5850. 423/161=2.62
Its still a better card and I didn't even get into the lower power consumption or the megahash per total cost of server which does make it a even better card.


edit:
You do realize I never recommended getting a 6970? The only two cards I believe are worth buying are the 5830($109) and the 5850 at the 160 mark. If you can find a card for less then retail and it beats these ratios then by all means get it but at the lowest retail price the 5850 and the 5830 are the best.

I dont know of a place where you can buy them currently but the price on newegg is 165(http://www.newegg.com/Product/Product.aspx?Item=N82E16814161332) it isn't unreasonable to reach 400 megahash on a 5850. 400/165=2.424.
A 5830 can reasonably produce 300 megahash.
300/130=2.307 (looks like in my original calculation I went with 129 and forgot the 99 cents)

That's the math behind those numbers. If you cant wait for good opportunities to arise you will lose money.

edit: the ratio for an amazon 5850 would be 2.482

You shouldn't buy these. At 129 it isn't worth it because when you calculate the megahash per dollar you get 2.325. You might as well go for a 5850 in staid of that because its ratio is 2.424.

I may be mistaken with what your trying to show but dollar per megahash (dollar/megahash) is a bit of an awkward ratio because the lower your number the better you did. If you go with megahash per dollar (megahash/dollar) you got .875 megahash for ever dollar you put in. This ratio makes a higher number a better number which is more comprehend able.

Capital                                   987
MHash/s                               1280
Megahash per dollar               1.30

Not going to lie that the messiest set up I've ever seen

He described it in the post your mining rig section.

try downgrading to 2.1 sdk when I tried 2.5 I dropped in megahash. Also thanks Ill try some changes. What does your gpu's run at mine are 66c

I haven't done the research for the 5770 but you also need to take into account the megahash per dollar spent on the server. I know when you build a rig with 4 5850's it gives you more megahash per cost of the server then a 5830 rig. Unfortunately I couldn't afford to invest enough money to get a 4x5850 rig so 5830 had to suffice.

whats your set up? I only get 320 megahash per 5830

You do realise that the only reason a 5830 is good is because it costs 109. A lot of cards have a better megahash per dollar ratio then a 5830 at $140

for a 7200 rpm drive its ~10 watts

They do use more electricity then flash. However it will take over a year of 24/7 full usage of the drive to make up the difference of 17 dollars. Plus if you invest in the hard drive you get 24 more gigabytes.

I don't understand the fad with flash drives instead of actual hard drives. You clearly didn't do your homework.
http://www.newegg.com/Product/Product.aspx?Item=N82E16822136897

lol its a great case I actually own one for my gaming rig. Keeps things super cool.

ram is extremely overkill and so is the cpu. You may not need the thermal paste if the cpu's heat sink comes with some. Also I noticed you didn't have a case. I would recommend getting a case since you have never built a computer before. Go with antec Ive always loved their cases. You can also skimp on the dvd drive is you want just install from a usb device.

I have this board and it works fine with 4 5830's

I'm pretty sure newegg would not be amused by this lol.