Yeah, they are using Bitpay as their Bitcoin payment processor, which means that they are getting cash and Bitpay is selling the Bitcoin for them.
My MSI twinfrozr 7950 does 0.975 and 1050/1350 for ~630kh (70-75C). I've run it as low as 0.9v and 900mhz with no issues. It can clock much higher, but the heat is too much when inside a case with another 7950 next to it.I'm thinking of selling my 3 7950s and getting 2 non-reference 290s. All of my 7950s can do stock clocks at only 0.975v, getting about 530-550kh/s.
Any thoughts? Anyone with non-reference cards able to undervolt quite a bit at stock?
If these aren't used for gaming, have you checked for a modified bios from The Stilt? I haven't tried one on my MSI because it's near where it should be, but I have a sapphire that was also stuck at ~540kh, and the Stilt bios brought it up to 630 at 1050/1500. This comes at a cost of slight instability in gaming, so I have to clock it down a bit closer to stock speeds while gaming.
Did you read my comment about the bios? Have you checked? This is a heat-free boost.I can get up up 630kh/s if I clock at 1140/1500 @ 1.15v, but I don't think the extra heat and power consumption is worth it because it just makes the other cards run hotter too, which in turn will lead to higher power consumption for the cards as well.
Did you read my comment about the bios? Have you checked? This is a heat-free boost.
I'm not really into BIOS modding. That pretty much voids warranty every time and if I'm keeping those cards, I need to think about the warranty. Thanks for the suggestion though.
I'm thinking of selling my 3 7950s and getting 2 non-reference 290s. All of my 7950s can do stock clocks at only 0.975v, getting about 530-550kh/s.
Any thoughts? Anyone with non-reference cards able to undervolt quite a bit at stock?
I had considered it, but unsure how to really test it. The kh/s drop occurs even with only one card running and is somewhat remedied by adjusting cgminer priority. I haven't come across any similar issues with the sempron 145 though.
PSU is Corsair HX850 with a draw of 580watts at the wall when all three cards are running. 12v line is 12.968 3.3v is 3.264 as reported by HWMonitor and here they look stable. In GPU-z the voltage reading fluctuatates somewhat.
Most cards are made with BIOS modding in mind and I don't think it voids the warranty on some cards. There is a little switch on the card that let's you switch to a secondary NVRAM "slot" to experiment with additional BIOS's. You can switch back to the 1st slot with the OEM BIOS anytime to save yourself from bricking. Check your card's warranty to see if it voids it or not. TBH, I doubt they would even check or reject the card. You can just make bullshit up if you're RMA'ing it.
TheStilt's BIOS's have worked wonders for me on all my cards. I gave him like .15 BTC.
The markets are performing.... oddly. I think this is the calm before the storm. Not sure which way it's going to go. Doge is up @ .00000230 and looks to be rising steadily. I'm selling my paultry ~13K DOGE a day regardless.
LTC dropped below $20/USD.... BTC below $760/USD. Look to be recovering pretty strongly. F*!K... I'm so tempted to just try to day trade with a big cash injection. 10% a day on $10k is $1000/daily. Even @ 5% that's a nice raise for me.
Did TheStilt BIOSes give any boost to R9 290s?
Hmmm. Well, I have no idea. IMO it's unlikely to be a CPU issue, even with a low-powered CPU. People run dozens of SHA256 ASIC miners off of one CPU routinely, and those things see GHash levels, not MHash; meaning more traffic through the CPU. Standalone SHA256 ASIC miners are managed by Raspberry Pi's and other weak CPU's. I'd think that it would take a lot more than 3 GPU's to max out a single-core x86 CPU at 2.8GHz.
From what I understand, TheStilt's bios modifications fixed improper factory memory timings that made some cards slower for mining, be it a 79xx, 290, 290x custom or not. The catch was that not all cards had that problem and if you are getting correct hashrates that most people report, you wouldn't benefit at all whereas if you had sub-par hashrates, the bios would bring it up to par.
From the numbers I'm seeing, my 290 doesn't need it since it's getting the same or slightly better hashrates as all of the ones out there.
I have a question about middlecoin. Based on how it works, will the number of workers affect you?
For example, will I make more money using one worker doing 1000 KH/s, vs. two workers doing 500 KH/s each? I'm not sure how they round off and how fast the blocks are found etc., so I'm wondering if slower/less-powerful workers will end up with a penalty because of how stales work or something? Or is it simpler in that you'll just pay twice the fees?
I guess I mean that the question is also asking about whether two independent workers, both submitting the same bitcoin address, will be treated separately and double-charged for fees etc. So I guess that's 2 parts to the question, ah, sort of trying to figure out if middlecoin will recognize you are the same person with multiple workers and therefore combine your proceeds into one "account" and not punish you for having multiple workers?
Yup. This is correct. All 3 of my cards were affected by the memory timing issues. Pure bad luck... as usual.
Hmm..... looking at KittehCoin right now.... I'll throw some BTC @ it and see if it sticks.
So... it was my understanding that Ripple and NXT were both blatant scams, but I don't think that would necessarily prevent them from taking off. Is anyone else here into either coin? I see NXT traded @ BTER and it had my considering purchasing and setting up a wallet to "forge".
Using BAMT i'm unable to change voltage for my R9 270's with anything other than a bios flash. Using VBE7 and atiflash. A backup, "atiflash -s 0 xxx.rom" cannot be restored without bricking the card (fixable) unless you have first opened the backup in VBE7, change nothing, and save and use the saved file to restore OG bios. This was a real fun time figuring out.
On the 270 I have found that 0.975v will work for 975c/1200m with I-19, TC-15232 and hash at ~420 for 110 or so watts. I have one card that needs 1.025v. I have a 270x coming in that I intened to try at 1000-1200 core with 1500, 1400 and then 1200 mem at 1.075-1.100 volts.