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Thread: Bitmain Antminer S3 - can it work?
Post: RE: Bitmain Antminer S3 - can it work?
| ASICs are, by their very definition, application-specific. Bitcoin ASICs work with Bitcoin, that's it. |
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epixoip |
Hardware
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1 |
6,353 |
09-21-2014, 11:09 PM |
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Thread: How to stuff 8 x GTX980 into on server?
Post: RE: How to stuff 8 x GTX980 into on server?
| Where did you hear that the Tyan FT77 will not recognize the GTX 980?
EDIT: Confirmed bullshit. We've got 8x GTX 980 in a Tyan FT77 running just fine right now. Will post a full review later tonight. |
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epixoip |
Hardware
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9 |
21,844 |
09-25-2014, 07:22 PM |
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Thread: How to stuff 8 x GTX980 into on server?
Post: RE: How to stuff 8 x GTX980 into on server?
| Probably won't have time to do the full write-up tonight, but here's a quick preview:
https://twitter.com/jmgosney/status/515338064223154177 |
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epixoip |
Hardware
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9 |
21,844 |
09-26-2014, 06:50 AM |
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Thread: How to stuff 8 x GTX980 into on server?
Post: RE: How to stuff 8 x GTX980 into on server?
| I also own a company that sells Tyan systems for GPGPU, and I can tell you that's patently false. But it doesn't surprise me, Tyan also originally told us that Radeons wouldn't work either.
The sys... |
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epixoip |
Hardware
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9 |
21,844 |
09-26-2014, 09:19 AM |
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Thread: Best bang for the buck today?
Post: RE: Best bang for the buck today?
| Thanks for doing your homework before posting! You have a bright future here.
You're on the right track and you definitely have the right idea buying used. However, 'best bang for the buck' really ... |
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epixoip |
Hardware
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4 |
12,946 |
09-27-2014, 08:15 AM |
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Thread: Best bang for the buck today?
Post: RE: Best bang for the buck today?
| That's not really a problem. All of the cards that we run in our datacenter (except for like 8 of them) are used, most all of which were bought from retired litecoin miners who realized they couldn't ... |
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epixoip |
Hardware
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4 |
12,946 |
09-27-2014, 06:47 PM |
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Thread: Asrock H81 & Radeon 7990 incompatibility
Post: RE: Asrock H81 & Radeon 7990 incompatibility
| the short beeps are likely related to 32-bit PCIe addressing. see if your bios has an option called "Above 4G Decoding" and if so, enable it. if it doesn't, then your board is not capable of 64-bit PC... |
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epixoip |
Hardware
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15 |
27,298 |
09-30-2014, 10:47 AM |
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Thread: How to stuff 8 x GTX980 into on server?
Post: RE: How to stuff 8 x GTX980 into on server?
| no, it has nothing to do with airflow and the fans on the cards do plenty.
the modification i had to made was removing this weird little rectangular piece of metal from the backplate. otherwise the... |
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epixoip |
Hardware
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9 |
21,844 |
09-30-2014, 07:46 PM |
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Thread: How to stuff 8 x GTX980 into on server?
Post: RE: How to stuff 8 x GTX980 into on server?
| everyone always thinks that but no, the fans do plenty. air is drawn in from the rear of the card, not the side of the card, unless you are using OEM design cards. but never use OEM design cards. alwa... |
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epixoip |
Hardware
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9 |
21,844 |
09-30-2014, 09:20 PM |
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Thread: Asrock H81 & Radeon 7990 incompatibility
Post: RE: Asrock H81 & Radeon 7990 incompatibility
| No, it's not a Windows issue, it's an AMD driver issue. |
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epixoip |
Hardware
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15 |
27,298 |
09-30-2014, 11:35 PM |
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Thread: Asrock H81 & Radeon 7990 incompatibility
Post: RE: Asrock H81 & Radeon 7990 incompatibility
| You're not really paying attention to what has been said.
Your BIOS does not have the "Above 4G decoding" option, and therefore does not support 64-bit PCI-e addressing. That's why you're not able ... |
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epixoip |
Hardware
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15 |
27,298 |
10-01-2014, 12:35 PM |
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Thread: Asrock H81 & Radeon 7990 incompatibility
Post: RE: Asrock H81 & Radeon 7990 incompatibility
| 7950 is a single GPU card. 7990 is a dual GPU card. Each 7990 counts as two GPUs. So you're trying to connect 12 GPUs to the board. |
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epixoip |
Hardware
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15 |
27,298 |
10-02-2014, 12:18 AM |
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Thread: Asrock H81 & Radeon 7990 incompatibility
Post: RE: Asrock H81 & Radeon 7990 incompatibility
| 4x 7990 is 8 GPUs. That's the maximum the AMD driver supports. Not sure what you're not understanding about that. |
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epixoip |
Hardware
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15 |
27,298 |
10-03-2014, 09:45 PM |
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Thread: how to calculate possible Bitcoin-Mining revenue
Post: RE: how to calculate possible Bitcoin-Mining reven...
| gpu mining is long dead. you missed the boat by a couple years. also incredibly off topic. |
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epixoip |
Hardware
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1 |
4,959 |
10-16-2014, 07:18 PM |
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Thread: BOM - 2x R9 290X - Rackmount Chassis
Post: RE: BOM - 2x R9 290X - Rackmount Chassis
| 1U and 2U rackmount will not work with GPUs that have top-mounted power plugs, which is currently every GPU to date that has been worthwhile for hash cracking. So you'll have to go 4U.
The GPU you ... |
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epixoip |
Hardware
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6 |
10,876 |
10-25-2014, 02:42 AM |
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Thread: BOM - 2x R9 290X - Rackmount Chassis
Post: RE: BOM - 2x R9 290X - Rackmount Chassis
| that motherboard is kind of an awkward choice (visualize the card layout), but everything else is solid. |
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epixoip |
Hardware
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6 |
10,876 |
10-27-2014, 10:23 PM |
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Thread: please help me correctly!!!!!!!!!
Post: RE: please help me correctly!!!!!!!!!
| do some homework and search the forums. this is a common topic that has been discussed at-length. |
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epixoip |
Hardware
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3 |
6,762 |
10-27-2014, 10:26 PM |
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Thread: BOM - 2x R9 290X - Rackmount Chassis
Post: RE: BOM - 2x R9 290X - Rackmount Chassis
| yes, the slot layout is awkward. it will work, it's just not symmetrical. |
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epixoip |
Hardware
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6 |
10,876 |
10-27-2014, 11:13 PM |
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Thread: Sapphire R9 270 Dual-X slower than HD5850
Post: RE: Sapphire R9 270 Dual-X slower than HD5850
| doesn't make sense, something is not right. it might be because you aren't specifying a mask and thus aren't gaining full acceleration for smaller keyspaces. |
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epixoip |
Hardware
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11 |
20,898 |
10-28-2014, 09:19 AM |
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Thread: Sapphire R9 270 Dual-X slower than HD5850
Post: RE: Sapphire R9 270 Dual-X slower than HD5850
| What's the output of ./oclHashcat64.bin -m 7100 -b on each GPU?
Also why are you using sudo? |
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epixoip |
Hardware
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11 |
20,898 |
10-28-2014, 12:05 PM |
