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Author Topic: [2.5+ EH] Slush Pool (slushpool.com); World's First Mining Pool  (Read 4325915 times)
KNK
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May 23, 2013, 07:03:59 PM
 #8721

You will need PCIe extenders, but the performance will not be affected - mining is not PCIe bandwidth hungry

-1 for resale value - if you sell for 30$ something going for 50$ as second hand at the moment it is not obsolete - the important part is when to sell

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ewitte
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May 23, 2013, 07:11:49 PM
 #8722

I wish people would stop trying to take into account the resale value of their video cards when figuring return on investment. by the time that you get around to selling them, technology will have progressed to point where they will be obsolete, or the market will be so glutted that nobody will want them.

Case in point. i planned on building a mining rig using one of two motherboards i have laying around unused. Bought the video card and then  looked at the motherboards.... um... AGP. ack. so now the rig will have a new motherboard and CPU as well, and a $400 investment turned into a $750 investment. fortunately, for me this is a hobby so set backs like this aren't too upsetting.

a question on the MB though. it has 3 PCI-e slots, one is x16, one is x4 and one is x1. Can all 3 be used for video cards? will performance be affected? i'm not sure what the numbers mean.

Video cards usually don't drop too much for 6-12 months.  I've had several video cards 1-2 years and I still got 60-80% off ebay.  Certainly if you've been running a 58xx card since it was new and doing bitcoin you've made up enough difference that who cares?

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Lucko
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May 23, 2013, 07:16:36 PM
 #8723

He said he undervolted his cards. I kind of wonder how much power I'm drawing from the wall.  I would assume it's in the mid to high 400 range, but I'm overclocked and over volted

As for the slots, the x1 slot is shorter than the other slots so you'd need a workaround for that with a riser or an extender or something
No way he is getting 50% less power usage with OC and under-voltage. My system without the this card is using 1324W and with it 1513W.

Yes you can use x1 or x4 or x8. No performance penalty. All you need is a riser cable or you need to take back of a pci slot away.
Trongersoll
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May 23, 2013, 07:17:07 PM
 #8724

a question on the MB though. it has 3 PCI-e slots, one is x16, one is x4 and one is x1. Can all 3 be used for video cards? will performance be affected? i'm not sure what the numbers mean.

what the numbers mean - http://en.wikipedia.org/wiki/PCI_Express. Basically this is is the length of the slot and and for video cards you need x16.

Can all 3 be used? - Possibly, but it really depends on the video card, AND you have to either use extender/adapter cables or cut the video card. And some cards are picky and work only in X16 and won't work on an X8 or X4 or X1 slot.

Bottom line - you can count on one card for sure, and the other two - in the x4 and x1 slots - probably not (or at least not easily).

figures... thanks, I'll have to look into risers i guess. i really hoped to eventually having 3 video cards in this rig. there were cheaper mini/microATX options for a one card machine.
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May 23, 2013, 07:26:09 PM
 #8725

figures... thanks, I'll have to look into risers i guess. i really hoped to eventually having 3 video cards in this rig. there were cheaper mini/microATX options for a one card machine.
Don't worry it works I have 8 cards connected to motherboard that way.

Look at this: http://www.amazon.com/HOTER-PCI-E-Extension-Cable-Adapter/dp/B0057M1ZLE
ewitte
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May 23, 2013, 07:30:45 PM
 #8726


No way he is getting 50% less power usage with OC and under-voltage. My system without the this card is using 1324W and with it 1513W.

Yes you can use x1 or x4 or x8. No performance penalty. All you need is a riser cable or you need to take back of a pci slot away.

Its possible 25% UV and 25% UC is 56%

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ewitte
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May 23, 2013, 07:37:20 PM
 #8727

Estimated reward just reset hopefully block doesn't end soon

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May 23, 2013, 07:42:26 PM
 #8728


No way he is getting 50% less power usage with OC and under-voltage. My system without the this card is using 1324W and with it 1513W.

Yes you can use x1 or x4 or x8. No performance penalty. All you need is a riser cable or you need to take back of a pci slot away.

Its possible 25% UV and 25% UC is 56%
Core is over-clocked from 725 to 775. So no... And I just tested settings that he posted. Best case 100W but I think is more 130W. Need more time to get average since I have 8 cards in. If this would work it would be grate and I wouldn't change it back but it doesn't. Even when you have mem at 75 not 300 as he told us. So I resetting to what I had.
nottm28
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May 23, 2013, 08:02:19 PM
 #8729

Anyone have experiences with those?

https://bitcointalk.org/index.php?topic=195540.60

There are other group buys but I'm looking at this one since it is EU and relay low price.

I have 2 on order from yxt doing the Europe group buy. I know the ROI is not that good but I figured they will keep me going against the rising difficulty until (and if) my bfl order ever arrives. Also I thought they look cool and I have lots of free slots from the pc's I've built.

I have enough coins for 2 more but I had doubts about the UK group buy with the questions over the VAT etc - yxt's units worked out about 2.51 coins each - this includes DHL postage. The UK group buy units seem cheaper at just over 2 coins - but what about postage and taxes etc.

I think ultimately I will wait for yxt for do a second buy and go there again - his group buy was very professional...

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Trongersoll
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May 23, 2013, 08:08:13 PM
 #8730

figures... thanks, I'll have to look into risers i guess. i really hoped to eventually having 3 video cards in this rig. there were cheaper mini/microATX options for a one card machine.
Don't worry it works I have 8 cards connected to motherboard that way.

Look at this: http://www.amazon.com/HOTER-PCI-E-Extension-Cable-Adapter/dp/B0057M1ZLE

cool! i just ordered the appropriate risers from amazon. after reading the wikipedia article i realized that it would work ok. I just need to jerry rig where the cards will go in the case and make sure i don't surpass the power supply.
ewitte
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May 23, 2013, 08:14:46 PM
 #8731

I still prefer powered risers especially for non 16x slots they are only specked for 25W.

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Lucko
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May 23, 2013, 08:26:28 PM
 #8732

cool! i just ordered the appropriate risers from amazon. after reading the wikipedia article i realized that it would work ok. I just need to jerry rig where the cards will go in the case and make sure i don't surpass the power supply.
You can use more then one PSU.

http://www.youtube.com/watch?v=BviJjNYsIag

But I don't know why he is talking about grey it is black...
Ogma
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May 23, 2013, 08:42:49 PM
 #8733

Looks like #18176 is another victim of the score reset.  Or is it just me?
RayJay
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May 23, 2013, 08:46:09 PM
 #8734

Hey Slush,
our last block 237574 didn't register with the database / didn't process.
Kruncha
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May 23, 2013, 08:50:40 PM
 #8735

Looks like #18176 is another victim of the score reset.  Or is it just me?

Me too.

K.
ewitte
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May 23, 2013, 09:02:01 PM
 #8736

Looks like #18176 is another victim of the score reset.  Or is it just me?

Yep not as bad as some of them I still got about 40% normal.

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vs3
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May 23, 2013, 09:03:46 PM
 #8737

Looks like #18176 is another victim of the score reset.  Or is it just me?

Me too.

K.

Let's give it some time - yesterday it took over half an hour to get self-fixed. Mine is off too:
18176    2013-05-23 19:51:28    2:06:53    17624457    1650    0.00108921    none    237567    25.58627000    90 confirmations left

and earlier when I looked (at around 19:05 server time) my score had just reset and showed almost zero (a few microcoins).

ewitte
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May 23, 2013, 09:08:08 PM
 #8738


Let's give it some time - yesterday it took over half an hour to get self-fixed. Mine is off too:
18176    2013-05-23 19:51:28    2:06:53    17624457    1650    0.00108921    none    237567    25.58627000    90 confirmations left

and earlier when I looked (at around 19:05 server time) my score had just reset and showed almost zero (a few microcoins).

Possibly but its been more than an hour and the # of shares looks normal when its updating the shares usually increases.  I also noticed 20 minutes prior to it ending the numbers reset.

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bobykarot
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May 23, 2013, 09:44:53 PM
 #8739

At around 1h50mins on a block, the estimated reward is reseted.

Achat/Vente bitcoins sur Paris
Ogma
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May 23, 2013, 10:27:39 PM
 #8740

At around 1h50mins on a block, the estimated reward is reseted.

On #18176 yes, but that's not on every block.  #18165 and #18170 were both over 2 hours and the score never reset during those two. 
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