Not bad, UD3s going for $149 with free ship on new egg at the moment. Anyone want to get rid of some used Motherboards? I've got some BTC burning a hole in my digital pocket. |
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The voltage setting that you see there, is the core voltage! You can't change mem voltage without a modded BIOS and flash!
An OC at stock voltage is fine! If you can lower your voltage, you can raise your core clock instead!
Yes, lowering the RAM speed does decrease temps a bit!
Lowering the voltage won't damage anything! Though it may introduce instability!
Memory and GPU on a single graphics card utilize a separate Voltage regulator? |
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You can use Team viewer to manage from your smart phone! I run 3 machines from my phone using it!
The ONLY thing it can't do, is cold boot the computer! At least I haven't figured out how, if you can!
Wake on LAN. Just need to send the magic packet. Little background here, originally, I was having some stability issues with my box and losing display/contol after about 8 to 12 hours of mining. I was going to write a script to reboot after a couple minutes of idle miners but went a different route. I did a little digging and noticed that the windows snmp service has a serious memory leaking problem when I'm mining. I wrote a script to restart snmp and my miners every 3 hours and I haven't had trouble since. I still want my machine to go straight to mining after a reboot so I'll probably use the autologin application brought up here. I was kind of hoping there was a way to provide an application access to the desktop on startup, without logging in. |
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heh.. you and I are looking for the same thing. Only thing I've been able to find that's close that you can use all at x16 or x8, is this http://www.fullcompass.com/product/393427.html expensive I know, but it's all I've been able to find. I know MSI released a board last month that has 8 slots on it, only 4 can be used a x16 and 4 at x8. Hope this helps. -Matt Woah! I like how they throw "cost effective" in there. Seriously though, there's no reason to run your cards at 8x or 16x, unless you're gaming. I've got a cheap ud3 with 2 16x, 2 4x and 2 1x slots. I'm currently using 5 out of 6 slots with all hashing at full speed (Waiting on a 6th extender.) UD5 has 7 total slots and it's $179 brand new. I was hoping someone may be selling their used MBs with at least 5 slots, 1x to 16x, doesn't matter. 8 would be great but I don't think there are many out there. |
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Looking to buy AMD motherboards with 5 to 7 PCIe slots. Any combo of 1x to 16x slots, just as long as there are 5 to 7 total.
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I'm currently running my two 6970s at 960/330 core to memory clock at stock performance voltage of 1.175. Although this is a slight increase in core clock(orig 880), it is a drastic decrease in memory clock(down from 1375). It would seem I can lower my power consumption/heat by undervolting my cards...
Are there any guidelines for for voltage tweaking, maybe some simple formulas for calculating safe voltages given core/memory clock and fan speed? Do I run any risk of damaging the cards if I undervolt too much? Looking at the bios it looks like the lowest voltage for these cards is .9v when at 250/150. I'm hoping to go somewhere in between. Thanks!
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Damn, I was really hoping to see some sawed off 6990 pics when I entered this thread  Now, if AMD made a cheap and energy efficient mining card, then every serious bitcoin miner would snatch them up, in turn driving up difficulty and defeating the purpose. Also, I don't believe the rumors on the 7000 series having twice the stream processor count. If AMD's intended audience of gamers has to fight with large scale bitcoin mining operations just to get their hands on the latest series card, they may move to Nvidia... |
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I would like to turn my Windows 7 box on and have it automatically tune my cards and start mining. Anyone doing this already and have a good list of tools to get started with or some ideas? I would need a command line windows application for clocking my 2 6970s at 960/330 and setting fans to 100%. I would also need a method for automatically starting phoenix miner with access to the desktop.
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That's the point, I am asking for i0coins, not bitcoins. I want people to use it! People go crazy spending $700 on them, surely they can bother reading up about i0coins and making one transaction with them, can't they?
(i0coin is spelled with a zero, not with an o --in case you want to google it)
You don't happen to have a sell order for 45k I0Coins that's been sitting on the bitparking exchange?  I spent 2.5 bitcoins to buy 900 i0coins when they first came out. I sold my 900 i0coins for .44 BTC a couple days later. Whoops! That is a pretty cool thing you are doing, although I think it may be futile. Saturating the community with multiple crypto-currencies only devalues BTC in my opinion. |
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How about I give you 50 bitcoins and you go buy 45k iocoins?  |
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sudo aticonfig --initial --force --adapter=all
sudo reboot
This should do the trick. That did it. You're the man, thanks! |
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So I've added a new card to my linuxcoin box and aticonfig lists the new adapter with "aticonfig --lsa", but I cannot access clock information or utilize the card. Do I need to reinstall the fglrx drivers?
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Hope I didn't miss the boat. I was scammed by Ryan Webber when he was calling himself "Eggcellent" He took 5 btc from me and 8 from another user for a pair of hard drives. I requested his IP and planned on tracking him down but if I get my btc back, I'll drop it. Here's the thread: https://bitcointalk.org/index.php?topic=29710.0My Wallet address: 1EbmRs3iBGcKJPoprSa4Vqkat6HizqgGet |
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So, I put my 6970s back in today and it looks like they have the exact same restrictions under Linux. I was able to underclock mem 125 under core but anything past that reverts mem back to stock.
I have the same issue with all apps except atitraytools in windows. For some reason that application allows me to set really low clocks while others show low clocks but temps are 6-7 degrees higher so I know it's not sticking.
Unfortunately tray tools doesn't handle more than 2 GPUs very well so I couldn't get it to work with the 6990s. However, the fact that one tool works in windows leads me to believe there's got to be another tool out there that handles 3 or more GPUs...
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Wow these seem overpriced... $825 not including shipping?  $825, shipping included as stated in the original post. These cards are hard to come by and I'm pretty much breaking even. I have them listed on eBay for $879 plus shipping and you'll find that is on the low end so I fully expect them to be sold by the end of the week. Would much rather sell to someone on the forums and avoid eBay/paypal fees/ pass them on to the buyer. |
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BIOS Flash works perfectly.
You just can't boot the cards in Windows - the ATI driver will call a bluescreen on purpose, halting the machine. Annoying.
When I get 6990's in, I flash them to 150mhz minimum RAM clock, and they tend to run anywhere from 915-950mhz at around 85C. Some cores as mentioned by another poster in this thread just are horrible, such as one that maxes out at 910Mhz @ a running temp of 98C. I'd say average is around 940mhz @ 89C - if you like pushing your gear that hard at least. There is a lot of variation on these, but it seems cards of later manufacture do better than the earlier ones.
I have not seen a difference clocking RAM higher than 150Mhz, but others report otherwise. YMMV.
You absolutely *must* underclock RAM on these to get any form of thermal room for stable overclocks, I've found. Also it saves about 50-75w per card. I had issues keeping them stable prior to flashing them.
fwiw I expect 840Mhash out of each card, and tend to average 850ish it seems these days.
-Phil
Thanks for the info, those are really good hash rates.I chose not to flash and just put them up for sale in the marketplace forum. I do have a pair of XFX 6990s that have been on backorder through Amazon for the past 2 months that I may give it another try when they come in. https://bitcointalk.org/index.php?topic=40055.0 |
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Looking for a good deal on a 6950 or 6970
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how many btc for the wii?
Updated with prices and pics |
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