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Author Topic: RISERS for 2 coins  (Read 3823 times)
BTC guy
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February 04, 2012, 04:18:49 PM
 #1

I have around 40 of these. I have 16x and 1x > 16x. They are all factory sealed. 2 coins each. Free ship within the US.

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February 04, 2012, 05:30:07 PM
 #2

3 coins for all? Cheesy


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BTC guy
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February 04, 2012, 06:50:01 PM
 #3

no
imsaguy
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February 04, 2012, 07:07:19 PM
 #4

None of them powered?

Coming Soon!™ © imsaguy 2011-2013, All rights reserved.

EIEIO:
https://bitcointalk.org/index.php?topic=60117.0

Shades Minoco Collection Thread: https://bitcointalk.org/index.php?topic=65989
Payment Address: http://btc.to/5r6
BTC guy
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February 04, 2012, 07:11:43 PM
 #5

Powered? Not sure i understand.
imsaguy
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February 04, 2012, 07:12:16 PM
 #6

Powered? Not sure i understand.

The molex connecter.

Coming Soon!™ © imsaguy 2011-2013, All rights reserved.

EIEIO:
https://bitcointalk.org/index.php?topic=60117.0

Shades Minoco Collection Thread: https://bitcointalk.org/index.php?topic=65989
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BTC guy
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February 04, 2012, 07:13:11 PM
 #7

No molex.
BTC guy
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February 04, 2012, 07:17:42 PM
 #8

Ive never seen a riser with a molex before. Why would you need one?
QuantumFoam
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February 04, 2012, 07:27:38 PM
 #9

This happens to some people when not using powered extenders, depending on the # of cards being run:

...

...
ForceField
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February 04, 2012, 07:32:03 PM
 #10

This happens to some people when not using powered extenders, depending on the # of cards being run:



What causes that to happen?

PC Hardware & Electronics For BTC     Traded w/: Kansattica | jduck1987 | shakaru | newdude | nitetrader | midievil | blo8i | mb300sd | juggalodarkclow | Garr255 | Tril | Ringmasta | SysRun | CrazyBlane | sokay | BCB | str4wm4n | PinkBatman | Bitobsessed | matauc12 | antimattercrusader | BryanK
BTC guy
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February 04, 2012, 07:32:59 PM
 #11

Wow. Ive been using these since I started mining. Ive never had any problems.
Cablesaurus
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February 04, 2012, 07:36:22 PM
 #12

That looks like improper grounding or way too many GPUs were being run through the board. You need to make sure as a rule of thumb you're not running more than 4 cards per motherboard without Molex extenders.
EDIT: Also, any and all dual GPU cards need run through a Molex powered cable if using an extender. This includes 5970's, 6990's etc.

Here's the Molex powered extender one needs to avoid such over-draw: http://cablesaurus.com/index.php?route=product/product&product_id=12

PCIe Extender Cables; Dummy Plugs, Fans; PSU Cables; Cases & More
Visit www.Cablesaurus.com and our forum thread at http://bitcointalk.org/index.php?topic=6128.0
BTC guy
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February 04, 2012, 07:40:08 PM
 #13

Thats not true. Ive run 30 5850 with 5 cards per board as well as 2 rigs with 4 5970 each. Ive used more than 50 of these. Never had any problems. They work great.
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February 04, 2012, 07:51:34 PM
 #14

That looks like improper grounding or way too many GPUs were being run through the board. You need to make sure as a rule of thumb you're not running more than 4 cards per motherboard without Molex extenders.
EDIT: Also, any and all dual GPU cards need run through a Molex powered cable if using an extender. This includes 5970's, 6990's etc.

Does the length of the extender matter in this case?
i.e. If you're using 1 GPU per mobo with either: a) 4in extender b) 8in c) 2 foot extender (hypothetically, not sure if this exists)

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February 04, 2012, 07:58:31 PM
 #15

The risers in that pic could have been defective. Im sure you will get defective risers with the molex too.
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February 04, 2012, 10:03:01 PM
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It really all depends on the draw of the cards.  With 5830s you can get away with having 5 in a board, but seriously, you'll know when you're trying to pull too much through the motherboard. The cards will run like crap, the board will be super hot, and at some point, the system will stop working all together.

Coming Soon!™ © imsaguy 2011-2013, All rights reserved.

EIEIO:
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Payment Address: http://btc.to/5r6
Cablesaurus
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February 04, 2012, 10:28:25 PM
 #17

Thats not true. Ive run 30 5850 with 5 cards per board as well as 2 rigs with 4 5970 each. Ive used more than 50 of these. Never had any problems. They work great.

Running 5 cards may work. Running 5 cards may also stress your motherboard PCIe bus to the point of burning out.

You're not going to really know if you have a problem until something has died. You will not at all necessarily have mining or desktop performance symptoms leading up to such a hardware failure.

Edit: Not all motherboards are created equal as well.

PCIe Extender Cables; Dummy Plugs, Fans; PSU Cables; Cases & More
Visit www.Cablesaurus.com and our forum thread at http://bitcointalk.org/index.php?topic=6128.0
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February 05, 2012, 12:25:44 AM
 #18



Had the same thing happen to me but reason was slightly defective PSU (Corsair VX 550W) which was stressed too much ~100% for two weeks 24/7. No problems after switching to TX850V2 with same risers which were not the issue in my case, even though I have 3 GPUs like before and they draw more power (they're overvolted now).
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February 05, 2012, 09:17:04 AM
 #19

When I look at that pic I have doubts risers caused that. The first thing that comes to my mind is power supply. People are probably trying to pull to much power from their psu.
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February 05, 2012, 06:00:56 PM
 #20

PCI-E boards get some power from the motherboard (not just via the 2 power sockets what is on the board). If you have 5 or 6 cards it is better to use an extender with MOLEX. This extra power will take off the load from the motherboard.



When I look at that pic I have doubts risers caused that. The first thing that comes to my mind is power supply. People are probably trying to pull to much power from their psu.

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