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Bitcoin Discussion Thread Part 2

Chihlidog said:
HAHAHAHA I just pulled my 5830 out of my machine! I wasnt going to, but we had a lightning strike, my PC wouldnt power back on, so I opened up the case just to check everything out. I figured while I was in there I'd just pull the 5830 and I was gonna say screw it and sell it.

Hah. What an ass I am.
Click to expand...

I will give you one shiny freshly mined uncirculated BTC for it :D
 
Hey, I never made any predictions lol. I just laid out the possible outcomes according to what was happening at the moment (speculators warring each other). Not my fault nostradamuses showed up predicting doom and gloom based on my post. :p

negrodamus.jpg


But seriously, the really significant news are the ex citigroup team setting up an exchange that could very well challenge mtgox and uploaded.to accepting bitcoins as payment. Things like this will generate buzz (obviously) but more importantly a steady demand for coins, which benefits miners directly.
 
Damn. My case is such a giant pain in the ass to get into, I really dont want to put that 5830 back in there. But it does look like I should have kept it in there to mine.
 
Can anyone recommend a good motherboard with lots of PCIe slots for mining(well at least 4)? I have an old HTPC that I can harvest parts from except the board and PSU. It's a socket 775 CPU.

Otherwise I have to convert over the system in my sig which is a socket 1366 with an i7 920. Overkill for mining but the board has the slots I need. Swap out the 460GTX for some AMD card and hope it can pay for itself quickly so I can then add more of them.

The only other option if those two don't work is to build something from scratch. But then that's not looking cost effective.
 
Last edited:
Archer75 said:
Can anyone recommend a good motherboard with lots of PCIe slots for mining(well at least 4)? I have an old HTPC that I can harvest parts from except the board and PSU. It's a socket 775 CPU.

Otherwise I have to convert over the system in my sig which is a socket 1366 with an i7 920. Overkill for mining but the board has the slots I need. Swap out the 460GTX for some AMD card and hope it can pay for itself quickly so I can then add more of them.

The only other option if those two don't work is to build something from scratch. But then that's not looking cost effective.
Click to expand...

probably be better going to a cheap amd setup for mining ,

MSI 890FXA-GD65 AM3 AMD 890FX SATA 6Gb/s , 6 card possibility with risers used for mining. i have been told it works

amd sempron 140

Jen
 
You could also go the ultra cheap way.
This mobo for $65: http://www.newegg.com/Product/Product.aspx?Item=N82E16813138318
Single core Sempron for $30: http://www.newegg.com/Product/Product.aspx?Item=N82E16819103939

Grab a few of these PCI-e extended ribbon cables: https://cablesaurus.com/index.php?main_page=product_info&products_id=8 and https://cablesaurus.com/index.php?main_page=product_info&products_id=9

You can use the 1x extender with a 16x slot card. To make the card fit all you do is melt the back of the 1x connector with a heat gun.
 
Jen said:
probably be better going to a cheap amd setup for mining ,

MSI 890FXA-GD65 AM3 AMD 890FX SATA 6Gb/s , 6 card possibility with risers used for mining. i have been told it works

amd sempron 140

Jen
Click to expand...

Thank you for your feedback. Now I need to determine PSU. If i'm going to possibly run 6 cards at some point I will need a beefy PSU. Haven't decided on video cards yet so it's hard to tell. Anywhere from a 5830 to a 6970.
 
Lorien said:
You could also go the ultra cheap way.
This mobo for $65: http://www.newegg.com/Product/Product.aspx?Item=N82E16813138318
Single core Sempron for $30: http://www.newegg.com/Product/Product.aspx?Item=N82E16819103939

Grab a few of these PCI-e extended ribbon cables: https://cablesaurus.com/index.php?main_page=product_info&products_id=8 and https://cablesaurus.com/index.php?main_page=product_info&products_id=9

You can use the 1x extender with a 16x slot card. To make the card fit all you do is melt the back of the 1x connector with a heat gun.
Click to expand...


limited on amount of cards can go on this board but its a great price i think

also on cpu mentioned should be noted its OEM so have a heatsink added to cost if you dont have one already. if you dont have a heatsink go for the sempron 140 that comes with heatsink and more cache on cpu.

also if person can wait on riser cables can purchase from hong kong for 2 for 9 dollars versus the other. ones from hong kong take about a month to deliver while the other is pretty fast

Jen
 
Jen said:
limited on amount of cards can go on this board but its a great price i think

also on cpu mentioned should be noted its OEM so have a heatsink added to cost if you dont have one already. if you dont have a heatsink go for the sempron 140 that comes with heatsink and more cache on cpu.

also if person can wait on riser cables can purchase from hong kong for 2 for 9 dollars versus the other. ones from hong kong take about a month to deliver while the other is pretty fast

Jen
Click to expand...

Yup, those are all good ideas. Thanks for filling out the holes in my suggestion. :)
 
Archer75 said:
Thank you for your feedback. Now I need to determine PSU. If i'm going to possibly run 6 cards at some point I will need a beefy PSU. Haven't decided on video cards yet so it's hard to tell. Anywhere from a 5830 to a 6970.
Click to expand...

consider two 750 watt powersupplys or 850 watt depending on your needs . there is a dual powersupply adapter out there that will allow this


Jen
 
If you are going with 4x5830s, go with at least an 850w. I didn't think ahead and am on 4x5830 OCed with a Corsair 750w, I am not having issues, but I'd go with 850w to be safe.
 
sethmo said:
If you are going with 4x5830s, go with at least an 850w. I didn't think ahead and am on 4x5830 OCed with a Corsair 750w, I am not having issues, but I'd go with 850w to be safe.
Click to expand...

Depending on efficiency of his setup, he'll be close to 650 watt with it. I'm at 535 watt with 2x5850 and 1x5770 both overclocked with a Q9550 locked at 5% performance.
 
Lorien said:
Grab a few of these PCI-e extended ribbon cables: https://cablesaurus.com/index.php?main_page=product_info&products_id=8 and https://cablesaurus.com/index.php?main_page=product_info&products_id=9

You can use the 1x extender with a 16x slot card. To make the card fit all you do is melt the back of the 1x connector with a heat gun.
Click to expand...

Could you elaborate on this? Does mining only need 1x worth of bandwidth to work? For instance, if you had 4-x16 cards (let's say 6950s) and 4 pci slots (let's say 1-x16, 1-x8, 1-x4, and 1-x1) then you could use pci-e 1x extenders to connect then to the board? I've seen remote setups before but I didn't realize that the cards could operate at full hashrates without having full x16 extender cables.
 
haxxorboi said:
Could you elaborate on this? Does mining only need 1x worth of bandwidth to work? For instance, if you had 4-x16 cards (let's say 6950s) and 4 pci slots (let's say 1-x16, 1-x8, 1-x4, and 1-x1) then you could use pci-e 1x extenders to connect then to the board? I've seen remote setups before but I didn't realize that the cards could operate at full hashrates without having full x16 extender cables.
Click to expand...

Yup, 1x is all you need.. every one of my cards Hashrate the same at 1x vs 16x.. and they ic just fine.
 
Evil Juggalo said:
Yup, 1x is all you need.. every one of my cards Hashrate the same at 1x vs 16x.. and they ic just fine.
Click to expand...

Exactly. That is why I linked that cheap mobo that has those 4 pci-e slots. That is in fact the cheapest mobo you'll find with that many slots
 
Lorien said:
Exactly. That is why I linked that cheap mobo that has those 4 pci-e slots. That is in fact the cheapest mobo you'll find with that many slots
Click to expand...

i wonder about the msi h61 that is often bundled with a i3 2100 at microcenter if it could be dependable enough for mining

the ideas i have , must stop thinking so much


Jen
 
nxcess said:
Depending on efficiency of his setup, he'll be close to 650 watt with it. I'm at 535 watt with 2x5850 and 1x5770 both overclocked with a Q9550 locked at 5% performance.
Click to expand...

I was at 777w with 4x5830 clocked to core 1000/mem 344, Sempron 140, No optical drive, 8gb USB thumb drive, and no case fans. That puts each 5830 at roughly 158w(CPU 45w, Mobo 100w).
 
sethmo said:
I was at 777w with 4x5830 clocked to core 1000/mem 344, Sempron 140, No optical drive, 8gb USB thumb drive, and no case fans. That puts each 5830 at roughly 158w(CPU 45w, Mobo 100w).
Click to expand...

Damn those 5830 draw some power.
 
Im about to switch rigs to one that has 4 - 1x PCIE slots and want to run Ubuntu off a USB drive..
I have downloaded DiabloMiner and the display drivers, but I cannot figure out how to actually get it to start mining.

4x GPUs running on Deepbit

Anyone care to help me out.. Im a linux noob.
I would google it but when I removed a DIMM from my primary machine to use on this one I can no longer boot my PC in standard or safemode, getting BSOD (System_service_Exception and Bad_Pool_Header).. Have not had any time to diagnose yet.. Ill get that fixed, just need to some on the linux setup.
 
So, difficulty jump today right? So I decided to quit playing the lottery and see if I could get some actual production in a pool while it is still marginally paying for the electron flow.

Set up a BTCGuild account...seems good

restarted Bitcoin in non server mode, it connects ok

Set up a pool miner in GUIMiner pointing to BTCGuild West

"problems communicating with bitcoin RPC * 2"

ugh, any ideas?
 
Did you create a worker in the pool's website? If so you have to use that name and password in guiminer. The username and password to login to the actual website is not used at all.
You don't have to run the client when connected to a pool either. You only need it running when you want to receive confirmation of payments.

Follow this:
Lorien said:
I'm going to assume you've already created an account on the site and are logged in.

Click here:
image2vp.jpg


On the page that comes up:
- Enter a name for the worker. It can be anything you want. Notice the format of the worker name. Your acount name is already filled out in the format accountname_
- Choose a password. It can be anything you want. For security reasons it's a good idea to make it different than the password you use to login to the pool website.
- Confirm password.
- Click on Create worker.

Click on "How to connect" and choose a server that is close to you from the list:

image2cq.jpg

It doesn't really have to be a server close to you. I change servers often, depending on how loaded they are.

- Open Guiminer.
- Click on File---New Miner---New Phoenix miner.
- Name it whatever you want.
- Click the Server dropdown box and choose "other"
- Enter the address for the server you chose in the previous step.
- Enter the name of the worker (remember it will be accountname_XXXXXX where XXXXXX is whatever you chose to name it).
- Enter the password
- Fill out the extra flags as discussed in the previous posts.
- Click the start mining button.
Click to expand...

The list of servers is shorter now though since he upgraded and consolidated them. There are only 3 servers now, USwest (can handle the highest loads), USCentral and USEast.
P.S: Yeah, difficulty should be changing in ~45 minutes.
 
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sold all my extra 5870s
now plan to just keep my original 5870 churning along
 
Thanks for all the help Lorien.

I think my fail was choosing the server from the dropdown in GUIMiner instead of entering it manually in the host field.

This thread is getting so long it is kind of hard to find stuff, is the "-k phatk AGGRESSION=7 VECTORS BFI_INT DEVICE=1 FASTLOOP=false WORKSIZE=128" flag string the stuff for phoenix? only getting 115Mh/s so something is clearly still wonky.
 
See that "DEVICE=1"? If device 1 is not your video card then it's using something else (most likely your CPU). It's best to not use that flag at all and just choose the device from the drop down box.
 
BANG!

sure as snot, I figured the device dropdown covered that...had it running on the same card as an already running OCL solo miner...I got .008 BTC here!!! :)

running an Open CL miner on one card at 404Mh/s

Phoenix on the other card only 375Mh/s so I don't know what's up with that but real progress here.
 
Is it possible to use multiple cards properly on a board without Crossfire to mine? I've got another board with 3 pci-e slots that's Intel Q67 chipset but I have no idea if it would even work with 3 cards at once, let alone allow them to mine correctly...
 
haxxorboi said:
Is it possible to use multiple cards properly on a board without Crossfire to mine? I've got another board with 3 pci-e slots that's Intel Q67 chipset but I have no idea if it would even work with 3 cards at once, let alone allow them to mine correctly...
Click to expand...

Yes. I'm using a 780i which only supports sli and mining works fine. I had to make up some dummy plugs but i hear with the beta ati drives you don't even need dummy plugs anymore.
 
haxxorboi said:
Is it possible to use multiple cards properly on a board without Crossfire to mine? I've got another board with 3 pci-e slots that's Intel Q67 chipset but I have no idea if it would even work with 3 cards at once, let alone allow them to mine correctly...
Click to expand...

You can mine with as many cards as you have power and PCIE slots for.. no CF/SLI needed.
But until 11.7 drivers come out your gonna need dummy plugs.

DVI/VGA adapter + 3x63ohm resistors (50ohm thru about 150ohm will work)
dummy-1.jpg
 
Evil Juggalo said:
You can mine with as many cards as you have power and PCIE slots for.. no CF/SLI needed.
But until 11.7 drivers come out your gonna need dummy plugs.

DVI/VGA adapter + 3x63ohm resistors (50ohm thru about 150ohm will work)
dummy-1.jpg
Click to expand...

Actually 2 65ohm resistors work in (2 and 7) and (3 and 8). I ran out of resistors and didn't want to buy a new set for one more dummy I needed, so I did some trial and error and found you can pull 1 and 7 out and it still works. So I scrapped up 2 extra resistors and made a new dummy.
 
traderj said:
Actually 2 65ohm resistors work in (2 and 7) and (3 and 8). I ran out of resistors and didn't want to buy a new set for one more dummy I needed, so I did some trial and error and found you can pull 1 and 7 out and it still works. So I scrapped up 2 extra resistors and made a new dummy.
Click to expand...

You only need one resistor, actually. A single resistor in 1 and 6 works just fine. Got three dummy plugs working that way.
 
You don't need dummy plugs if you install the Catalyst 11.6b or 11.7 preview drivers
 
Just search around for the beta drivers, a bunch of different sites have them and they work fine.
 
I just ordered 2 Sapphire 6950 dual-fans that should be here tomorrow (I love Amazon Prime) and I'll throw them in a machine to start testing. I'll give the 11.7 preview drivers a whirl. I'm planning on trying doing a small OC, maybe 5-10%, and using Guiminer with Phoenix and the flags that were mentioned earlier in this thread.

Anything else I should know? Nice to see the value back up to $13.90... scared me for a bit around $12 with everyone speculating.
 
I grabbed 3x 6950s 1GB from the $170 deal Amazon had today (they sold out within minutes), I just couldn't pass them up. http://slickdeals.net/permadeal/554...-radeon-hd6950-1gb-ddr5-pciexpress-video-card

I don't know what to do with them though. 2 were paid with a giftcard bought with bitcoins (<3 spendbitcoins.com), and the other one I might flip for a profit. These come with the BIOS switch so I could try my luck and unlock them or I could just flip them all. Help me Obi-wan [H]-nobi you're my only hope.
 
Lorien said:
I grabbed 3x 6950s 1GB from the $170 deal Amazon had today (they sold out within minutes), I just couldn't pass them up. http://slickdeals.net/permadeal/554...-radeon-hd6950-1gb-ddr5-pciexpress-video-card

I don't know what to do with them though. 2 were paid with a giftcard bought with bitcoins (<3 spendbitcoins.com), and the other one I might flip for a profit. These come with the BIOS switch so I could try my luck and unlock them or I could just flip them all. Help me Obi-wan [H]-nobi you're my only hope.
Click to expand...

great price for the video cards , if i had seen i probably done the same


Jen
 
Lorien said:
I grabbed 3x 6950s 1GB from the $170 deal Amazon had today (they sold out within minutes), I just couldn't pass them up. http://slickdeals.net/permadeal/554...-radeon-hd6950-1gb-ddr5-pciexpress-video-card

I don't know what to do with them though. 2 were paid with a giftcard bought with bitcoins (<3 spendbitcoins.com), and the other one I might flip for a profit. These come with the BIOS switch so I could try my luck and unlock them or I could just flip them all. Help me Obi-wan [H]-nobi you're my only hope.
Click to expand...

Dude... I shoulda checked Slick Deals today... I am severely disappoint
 
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