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Showing 20 of 522 results by vdragon
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Topic
(Unknown Title)
by
vdragon
on 25/01/2020, 02:24:00 UTC
I thought for a moment that I will miss the days of my rigs, and that it will be hard to get used to the silence... Boy I was wrong Cheesy. No noise, no heat, and most important, no need for watching if some of the electrical installations will start to burn. To be clear, that never happend but it was in the back of my mind always
Post
Topic
(Unknown Title)
by
vdragon
on 25/01/2020, 02:24:00 UTC
True for cooling, mine are sitting on a top shelf, no fans or anything... To be honest I am happy I got rid of the noise
Post
Topic
(Unknown Title)
by
vdragon
on 25/01/2020, 02:23:00 UTC
Could also be that the true mem speed is back to its original/stock setting.

^This.  It is hard coded into the GPU's BIOS on the 6000/7000 series cards to only allow 150mhz below engine clock.

Dropping a 6000 series card to 300mhz would make the LTC hash rate drop significantly.

Anyone know of a bios rom to flash to allow a 7950 to drop its memory more than 150mhz under core?

Is there a bios editor to edit the rom that comes on the card to allow this?

 I havent seen one for 7 series. However, you can add that dll file to afterburner to allow lower memory
Post
Topic
(Unknown Title)
by
vdragon
on 25/01/2020, 02:22:00 UTC
A friend of mine decided to go out of mining bussines (think its something his wife wants to devorce him Tongue because of his house being turned into a big fan), so I bought everything of him. 20 X 5970 incoming Cheesy. 100k khs litecoin mining, here I come. I hope coinotron can handle Cheesy
Post
Topic
(Unknown Title)
by
vdragon
on 25/01/2020, 02:22:00 UTC
Anyone got a rig with 4x 7990? I would like to see that one Smiley
Post
Topic
(Unknown Title)
by
vdragon
on 25/01/2020, 02:22:00 UTC
THese gigabyte 7950s are the best - cards are the coolest in whole setup, last night I let the window be open wide, in the morning they were running at 32C
what clock and voltage setting are you using? I have never seen such low temps on my air cooled 7950 @ 1Ghz, 1.09V.

 Sorry for answering this late, I missed your post. I am running the cards 1GHz, 625MHz memory, 0.956V core. But you have to bear in mind that when I measured this it was -2C outside, and the window is very big.

 And whoever questioned me buying the 7950s, in next 3 days I will break even Tongue. With this price, and the average of like 10 btc a day for last 15 days, it was a good investment. And we are still not swamped by ASIC, the story I have been listening to for what, 5 months now ?
Post
Topic
(Unknown Title)
by
vdragon
on 25/01/2020, 02:22:00 UTC
Sorry for not posting pictures, today was a crazy day of changing ltc pools and sell sell sell -> mined a total of 38btc through ltc today. I dont think we will see that exchange rate again soon. It was a rush, litecoinpool, notroll crashed few times, at the end i switched to solo Cheesy
Post
Topic
(Unknown Title)
by
vdragon
on 25/01/2020, 02:22:00 UTC
Room 1 - theres 14 x 2 x 7970s Smiley, just dont have a wide angle lens to get the whole room. Will post Room 2 and 3 later Smiley

I just love your cable management system! Cheesy
Although I think it needs more tomato sauce! Wink
Just Kidding!  Grin
Thank you for sharing!

 Yeah the cable managment sucks Cheesy. I had the machines in a biger room, and when I move house, they got into a small room, and I was to lazy to cut and patch new cables. No one enters room 7970 Cheesy anyway, these are all Power Color reference boards so its damn loud. As oposed to room 7950 that has same number of 7950 MSI Twin Frozr and Gigabyte Windforce cards, where you can actually talk Cheesy
Post
Topic
(Unknown Title)
by
vdragon
on 25/01/2020, 02:22:00 UTC

I fixed your [img] tags, and added [url] ones. Now we can actually see the whole picture at once, or click to zoom into certain parts. Much better for threads like this.

 Thanks, will resize them next time before uploading, forgot to do that again.
Post
Topic
(Unknown Title)
by
vdragon
on 25/01/2020, 02:22:00 UTC
I use these to get more PCI-E power plugs. http://www.newegg.com/Product/Product.aspx?Item=N82E16812198018
If I -have- to use a molex to get more PCI-E power plugs, I use the ones included with Sapphire cards. They're single molex, not double, and there are no missing wires in the PCI-E pwoer plug, unlike the ones I see in this thread. Their wires are pretty thick, so they don't get hot.

I avoid using them because I noticed some instability when I used one of those Sapphire 1x 4pin molex to 6pin on my then 5830.

When the cables get hot, that usually means that the psu is overheating and/or under severe load.

I had a 750W power supply powering two gigabyte 5850's off of a molex line. Didnt draw more than 450 watts at the wall, but the wires melted at the modular connection between molex and power supply. Power supply was not overheating or under severe load. It was the load on the wires. Too many amps.

Also there's some wrongly wired molex to PCI-E out there. I had one that had a 5v wire attached to a ground pin. I threw that away immediately. Dead short = not good. Yes some molex to pci-e use red wires but properly attach ground to ground, but this one was dead short.

 5 series was pulling much more power then the 7... And when you said wrongly wired, i went through all of my spare cables. Found 2 Cheesy
Post
Topic
(Unknown Title)
by
vdragon
on 25/01/2020, 02:22:00 UTC
Havent had any contact with 5830, lowest I used was 5850. Couldnt get it under 165W with a reasonable hashrate Smiley
Post
Topic
(Unknown Title)
by
vdragon
on 25/01/2020, 02:22:00 UTC
BTW, reinforcements are here, 33 more 7950, I simply couldnt resist the price. Pictures to be soon. If I am correct, I will be at 80GHs now Smiley
Post
Topic
(Unknown Title)
by
vdragon
on 25/01/2020, 02:22:00 UTC
I am sure someone like king_pin still does not believe in ASICs even though we have now 5 delivered Avalon units (jgarzik, the Foundation, techwtf, xianfu, and another chinese) Wink I just cannot understand why you guys at some point did not believe in ASICs. It is a financially and technologically natural and inevitable evolution of Bitcoin, like pretty much all the other computing industries on earth!

 Let me correct myself. Being in that kind of bussines, I know how much it costs to make a proper asic machine - what avalon made is more of a fpga/asic clone. Avalon delivered 5 items, there is no kind of guarantee that they will deliver all. In ASICminer i believed, since he was planing to spend much more money on development. Basic screwed people over, I believe BFL will too. And I think that avalon first mines with the devices, and then sends them over when all hell breaks loose, so that people who get them will be screwed and never break even. So we didnt say its impossible, its sure as hell was possible at that moment when they announced them, just not for that kind of money.
Post
Topic
(Unknown Title)
by
vdragon
on 25/01/2020, 02:22:00 UTC
Just to be sure, look for old Halon system, they are the best for taking fires out of electronic equipment Cheesy. On a serious note, I have 3 fire extinguishers, one in every room. And not the small ones, but large. Better safe than sorry
Post
Topic
(Unknown Title)
by
vdragon
on 25/01/2020, 02:22:00 UTC
And seems my hunch has served me good, because those who get their avalons in may/june/july, can only use them as vase holders or so ...
Post
Topic
(Unknown Title)
by
vdragon
on 25/01/2020, 02:22:00 UTC
Everything you sad sounds reasonable but at the end:

For the same amount of GH/s - my setups probably cost 2/3-rd of yours take 1/2 the space use less electricity, I've had very few problems, less rigs means less time setting them up lets say when power fails, btw I use Wi-Fi with 3G so no spaghetti on the floor, and the internet never stops. Cheesy

I can give you that my MB-s will be harder to sell, but only them. Everything else (besides VGAs) is similar to yours just 3 times less! WoW when I sad 3 times less I realized, u r a idiot Cheesy Cheesy

  What can I say, but nice attitude...
Post
Topic
(Unknown Title)
by
vdragon
on 25/01/2020, 02:22:00 UTC
Yeah why only two cards per MOBO, you can at least put 4
I can, but when I put everything in an equation, it costed me the same as getting motherboards with 2 cards. So I went for simpler solution Smiley
How can it cost the same?
2 extenders cost around 5$ and I doubt a second MB, CPU, RAM, HDD cost less. Shocked

poor NOOB, you don't need expensive MBs having 4-6 PCIe 16x slots, you can just use the 1x slots you have free on the MBs allready you have. You don't have to use a powerful PSU just bridge two of the once you bought.

And there are simple cheap MBs with 1 PCIe 16x and 6 PCIe 1x slots like ASROCK H61DEL it is made for mining and u can put 6 cards on it.
That is what I do - 3 machines with 18 cards total - http://www.youtube.com/watch?v=OCTDN05LKao

 Look bro, I own a computer shop and service since '98, so no need calling me a noob, trust me I know prices. And considering my RMA over years, I know the risk of using bad PSUs. At the time when I was buying these, I considered everything there is available, abd for me, this was the best solution. Maybe I am just lucky but I never had a thing stop on me for a year now, and I have a total of almost 100 graphics cards. There is also a thing, thats called "ease of sale" when all stops at one time, and I took that into a consideration. Also I didnt have to "invent" any type of a custom rig or cooling, I made it as simple as possible, inserted 2 cards per motherboard and thats all.

 What I am saying, everyone has his own ways, someone likes to link small power supplys, someone likes to make a custom housing, etc... I went for what I think is the best for my money, and never ran into a single problem besides having to change cables for electricity to my house Cheesy
Post
Topic
(Unknown Title)
by
vdragon
on 25/01/2020, 02:22:00 UTC
BTW I just looked, at the time i bought these, the prices were the following. A bunch of 40gb hdds for 4 euro a piece. 2gb ddr3 memory sticks 7 euro a piece. Motherboards at 37 euro. Cpus at 29. And the PSUs were mixed. 850w XFX were bought with the idea of adding the third card at some time, those were 70 euro, and for other rigs it was Thermaltake 550w, i dont remember the price, but was cheap at like 45 euro. At these prices, it was not worth experimenting since the cards were 360 euro a piece, so the mobo+mem+cpu+hdd+psu was like 15% of the price of each rig, and at that rate it wasnt worth the fuss of making a custom solution.
Post
Topic
(Unknown Title)
by
vdragon
on 25/01/2020, 02:22:00 UTC
Please I don't mean to insult you, that's why I put the  Cheesy Cheesy at the end.
I just think that your setup is wasteful, and there is no way I can agree that 2 is better than 6 Wink

But you ain't an idiot for selling at 19$ I've sold for 5-6$ a year ago, so I guess I'm the biggest looser.

And yeah the ASIC problem. One thing that I hate about it is although I knew they weren't going to do produce anything at least till January, ASIC fear stopped me from buying more GPUs and I would have made a killing if I had bought more by now.

I'm still buying more gpu's...when diff. rate gets to high i'll sell to gamers...no hair off my back if i don't get much for the cards...they served there purpose to me Smiley mor coins!!!

 I am afraid that there wont be enough gamers to buy the Radeons Cheesy
Post
Topic
(Unknown Title)
by
vdragon
on 25/01/2020, 02:22:00 UTC


Doesn't help that the gigabyte cards are voltage locked to something far above 1.0875v (Stable at 1015MHz at supposedly 1v? yeah right). Anyways, I have 2 5970 and 4 5870, all reference connected to one mobo and one PSU. 3.02 GHash @ 1v, 965 watts or 3.13 Mhash/joule. Not too bad for GPUs

 Which Gigabyte cards? From 7 series only voltage locked cards are newer 7970s. Rest can be flashed with old BIOS

gigabyte 5850 is voltage locked (likely also with 5830 and 5870. other manufacturers have some sort of voltage changing, and reference cards are great with 0.0125v steps)

 Ah sorry, I thought its about 7 series. Because there are some Gigabyte 7950s that come with locked FZ1 Bios, but can be flashed via DOS/atiflasher to F2