Consumer rebadges of old cards (77xx, 78xx) based on the 6000-series VLIW4 arch. coming out first, new 79xx series cards based on totally new architecture coming out Q4'11 or Q1'12.

Also a 7990 "New Zealand" dual gpu coming spring next year.
28nm process and later shrink to 22 or 20 which means less power consumption, potentially smaller cards, more performance per dollar.

Moon is right, silver is by far the most useful precious metal out there.

The majority of uses for gold on that site mention either backing a currency on it's own, it's malleability, or the fact it can be used for jewelry and ornaments, electricity conduction.

Silver is also a better conductor of electricity (in fact, the best known material in existence), as well as heat.

I would only be interested in gold as an investment, as for it's utility, there aren't really that many compared to other metals. Gold is just something pretty and shiny.

Some premium motherboards like MSI BB Marshal can absorb massive electric loads without affecting the stability of addons on the mobo.
The downside is that those boards cost a lot ($400 or more) due to having high quality components, capacitors, chokes etc.

Yes, a low quality board can limit the overclocking capability of a card if a lot of power is being drawn through too many slots (75W for each card), at some point the power draw will choke and some cards might be getting sub-par power.

One way to circumvent this is using modded extender cables w/ Molex which feed the card the 75W from the PSU rather than the motherboard.


Try OC'ing them individually. If the problem persists then those are the hard limits of the cards you have, i.e they can't be pushed higher.

I have some 5850's that wont go even a bit above 880mhz, and some will go easily past 1ghz.

I hope people don't try setting their voltage to 1.25V after reading this.

It's not safe and just about no chip will be able to absorb this in the long run. Sure you might get big hash rates, for a few weeks before the VRAM busts.

1.2V is probably the highest anyone should settle for if they are into mining for the long run rather than benchmarking.


If you want to be cautious, you can buy a heat sensor for about 10 bucks from a hardware store. Then point it at the VRM, if the temp is at 80-110c you have nothing to worry about.

If it shows 140c+ then it's better to tone down the core frequency or voltage.

Trying a shotgun diagnosis here.. Did you lower the fan speed at any time?

Ages ago I just had a single 5850 which I OC'ed & mined with that.
A fan speed below 50% would make it freeze as the VRM's were not getting enough cool air. At 75%, no freezes whatsoever.

But you even put google ads on the site.

People shouldn't just put up ~3000 dollars for anonymous people to leech off, "for fun and learning".
(Well.. Unless they got that 3k for free)

Maybe someone will learn from my naïvete before submitting millions of shares.

Every time your balance goes deeply negative you have to spend thousands of dollars to pay your PPS miners out of your own pocket unless you want the pool to die.

This doesn't seem like a sound business plan for a startup pool unless you are rich. There is a high risk you will not have adequate funds to pay out earnings for 0% PPS.

Do you have a buffer of 500-1000BTC to ensure PPS payments even in the case of many unlucky rounds?

nobody in the world will buy a p4 desktop for $150 bucks & nobody will pay 50 bucks each for an obsolete athlon computer with agp slots

also shipping per card is at least $15 dollars or you have to buy directly at $149.95 on ebay

Sensor 0 or 3 is usually the VRM (voltage regulator module) on the GPU. Temperatures of 90 to 130c are quite usual on air cooling, and the VRM's are specified to take this kind of heat
(esp. the relatively expensive Volterra modules on 6990's which can take temps of even up to 150c without throttling)

On normal cards (non 6990) 135 to 150c will degrade the VRMs very fast or kill the card in 24/7 usage.

Eligius and mineco.in have 0% though it's not pure PPS, their balance is positive enough for anyone to switch there, you are guaranteed 100% of your expected earnings daily as long as the server is up & the buffer stays positive

Also RFCpool has 7% pps, and btcpool24.com has 0% pps (I have mined at the latter for ~50k shares but didn't trust the operator enough so I quit after some hours, there are strong hints he is an amateur or does not know what he is doing)

Your problem is that you're using a proportional pool.
In the short term both variance and pool hoppers can eat away at your earnings with no shame.

Use a PPS pool or a PPS variant if you want to get paid the same amount day in, day out regardless of good/bad luck of the pool

So it looks like you added 0% PPS to the pool

Is this for real, because the first block was never found after 1 month
& 0% PPS is impossible to pull off in the long term by such a small pool

Also, will old miners get 1st block reward in PPS or proportional?
p.s. the hashrate is about 1g now

cheater

you made that topic 1 minute ago lol

Flate rate is ok because it's not theft, that's the company's business model. You pay the same price whether you use 100kWh or 3000kWh during a month.

Stealing electricity at work, home or school is wrong because you are making bitcoins with someone elses money.
(And you will likely get caught)

Have to love the idiotic argument that "you don't pay for electricity".

Someone, somewhere is paying for it. Be it your parents, the landlord of a school building or someone else you leech off. And someone will notice eventually (not in the case of 1 CPU, but in the case of 10, 20, 100, someone will eventually notice)
 
Esp. in the case of parents, you are just stealing from your own family.
They have to pay $120 in electricity bills so that you can earn $60 dollars. It makes absolutely no sense and only a juvenile would do something like this.

Cost ineffective mining never makes sense unless you operate an illegal botnet, even in that case you might be risking eventual jailtime.

First off, 2gh/s wont be happening with 700 dollars, but you can get pretty close.
This list is made assuming new GPUs because 5xxx series are very hard to obtain. You will find just about no store holding them in stock at reasonable prices.

Useless parts:
Sell the 3 working athlon 3300's at $10 each for $30, sell the random GPUs for $40 total (8800 for 20 bucks), gain $70. Optionally sell the core 2 quad and sempron but I wont cover this in the calculation, however those will net you about 100 bucks or more


Add the spare 350W PSU and P4 processor, one of the 512MB DDR2 ram sticks, run it on the 160gb drive. Add Radeon 6950 @ $239, reflash via hardmod to gain about 400-430mhash/s, connect via supplied Molex -> PCIe, PSU will handle it if you keep CPU usage down to a minimum

http://www.newegg.com/Product/Product.aspx?Item=N82E16814150523

You are down to 531 dollars. You wont have enough to buy two more 6950's and build a system around them, even that would only come down to 1.2ghash/s

Best bet is buying used old computers with PCI-e slots (even x1 will do fine) on sites like craigslist or ebay at about $30-$50 a piece. Then fit them with used 5830's 5850's, 5870's.
You might just be able to stretch to about 1.6ghash/s if you find 4 5870's at $150 each and buy a used PC for each one at 25 dollars. That's a bit of a stretch though.

If you want to aim for a lower, more realistic goal post here

It should OC exactly to the same point as a 5770 seeing as it's literally the same GPU.
(Putting aside individual differences between each chip which means not all chips will achieve the same overclock)

Damn, can't argue with AMD there.
Ok, they added some blu-ray playback features but in essence it's a Juniper (57xx) chip and not an actual 6xxx series GPU.

So in theory a 5770 should be 100% equal to 6770

Unlike the 6850 & above which are really based on the VLIW4 stream architecture. Seems like everything below are mostly just OEM rebadges from the lower 5xxx series to appear 'newer'.

https://en.bitcoin.it/wiki/Mining_hardware_comparison

The higher mhash on the 5770 is only due to a massive overclock it seems.

Mining is stressing on the GPU but not nearly as much as something like Furmark that would push the cards to it's absolute limits.
You aren't even utilizing the video memory at all for one.

It's very possible two 5870's would only consume 300-320W together while mining. Does sound a bit low but you could also have premium chips

Exactly. As a programmer, you almost need to 'protect these people from themselves' if you want your company to still have them as customers in the future (regardless of their stupidity or technical ineptitude, they are still giving your company money regularly and paying your salary).

They don't care about the details, they just want things to work easily and be safe. That's what Joe/Jane Average pays for. It's useless to despise them for their stupidity when your livelihood comes from them. Think of it like supporting your grandmother who can barely turn the PC on. Don't hate on them, make the product even more 'idiot-proof' on it's own.

(Bitcoin developers don't get a salary but they might have other vested interests, financial or personal, to make bitcoins as user-friendly as possible)