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Mining

Sabertooth z87 and 6 280x

I only get the os to recognize 4 gpus, not sure if I need to jump some pci-e pins or not, or maybe I’m missing something else.

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The following content was written by ivanlabrie on January 02, 2014, 07:05:44 PM in the thread Sabertooth z87 and 6 280x. All content is owned by the author of the bitcointalk.org post. (original)


Hi, anyone gotten this to work? I’m using Win 8 currently…trying to avoid bamt since I want a 64 bit os for cpu mining and easier to setup monitoring and remote control (can’t setup port forward with my isp)

I only get the os to recognize 4 gpus, not sure if I need to jump some pci-e pins or not, or maybe I’m missing something else.

The following content was written by frostamation on January 03, 2014, 12:24:48 AM in the thread Sabertooth z87 and 6 280x. All content is owned by the author of the bitcointalk.org post. (original)


are you using powered or unpowered pcie risers? i ask because some people have had luck getting their gpus to recognize with powered risers and not having to jump the pcie port with a wire.

The following content was written by frostamation on January 03, 2014, 12:31:06 AM in the thread Sabertooth z87 and 6 280x. All content is owned by the author of the bitcointalk.org post. (original)


heres some info about the pcie jump and risers http://www.gobitgo.com/articles/1001/How-To-Correctly-Use-and-Install-PCI-E-Riser-Cables/

The following content was written by ivanlabrie on January 03, 2014, 02:06:28 AM in the thread Sabertooth z87 and 6 280x. All content is owned by the author of the bitcointalk.org post. (original)


Thanks, I read a guide there…before trying this.

I’m using powered risers. Maybe I lack the correct chipset drivers to enable the two pci-e 2.0 slots that don’t feed off the cpu?
I did install a chipset driver but it didn’t help.

Gonna try bamt 1.2 tomorrow and see if ti runs.
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Mining

Advice choosing a PSU ? Only drawing 550w MAX ??

I have an MSI Mb and x2 280x cards and it’s only using a 550w max. I am not concerned about the efficiency as I have free electric in work.

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The following content was written by bilabonic on January 03, 2014, 05:27:16 PM in the thread Advice choosing a PSU ? Only drawing 550w MAX ?? . All content is owned by the author of the bitcointalk.org post. (original)


Hi All

I have an MSI Mb and x2 280x cards and it’s only using a 550w max . I am not concerned about the efficiency as i have free electric in work Grin

The biggest factor is price.

Is there a formula or % to add to the 550w being used ??

Or do you subtract a figure from the PSU rating ??

I am also based in the UK

Thanks

The following content was written by pletharoe on January 04, 2014, 05:11:38 AM in the thread Advice choosing a PSU ? Only drawing 550w MAX ?? . All content is owned by the author of the bitcointalk.org post. (original)


How did you come to the 550W figure? According to https://www.asus.com/Graphics_Cards/MATRIXR9280XP3GD5/#specifications each card needs 300W.

Then you also need to factor in the power used by the rest of the machine.

Then add a factor of say 20% to accommodate spikes in power draw.

I’d look at something with 700 – 800 watts and 80plus certification. Stick to the big brands. Wattage isn’t actually the best measure… taken from http://www.extreme.outervision.com/PSUEngine


The recommended total Power Supply Wattage gives you a general idea on what to look for BUT it is NOT a crucial factor in power supply selection! Total Amperage Available on the +12V Rail(s) is the most important, followed by the +5V amperage and then the +3.3V amperage

The following content was written by bilabonic on January 04, 2014, 08:14:54 AM in the thread Advice choosing a PSU ? Only drawing 550w MAX ?? . All content is owned by the author of the bitcointalk.org post. (original)


How did you come to the 550W figure? According to https://www.asus.com/Graphics_Cards/MATRIXR9280XP3GD5/#specifications each card needs 300W.

Then you also need to factor in the power used by the rest of the machine.

Then add a factor of say 20% to accommodate spikes in power draw.

I’d look at something with 700 – 800 watts and 80plus certification. Stick to the big brands. Wattage isn’t actually the best measure… taken from http://www.extreme.outervision.com/PSUEngine


The recommended total Power Supply Wattage gives you a general idea on what to look for BUT it is NOT a crucial factor in power supply selection! Total Amperage Available on the +12V Rail(s) is the most important, followed by the +5V amperage and then the +3.3V amperage

Thanks for reply.

I’m using a kill-a-wattmeter, the MAX it has used is 550w inc MB. I just want to run 2 cards off the MB/PSU.

So add 20% to 550w = 660w, so a 700/750w 80plus will be ok.


Think i will get this –

http://www.dabs.com/products/coolermaster-700w-g-series-g700w-80–bronze-power-supply-8Z2S.html?refs=394900000&src=3
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Mining

Static IP and network defense

I am confident in securing my network, but I’d like to hear what network appliances people are using to protect their mining operations.

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The following content was written by 2tights on January 07, 2014, 06:43:11 PM in the thread Static IP and network defense. All content is owned by the author of the bitcointalk.org post. (original)


I know the main concern for attack is a DDOS attack. I have a static IPV4 address for my home network. I’m concerned that if my IP ends up on a malicious user’s, or bitcoin hater’s, shit-list that I may become a target. I am confident in securing my network, but I’d like to hear what network appliances people are using to protect their mining operations.

The following content was written by Kenshin on January 07, 2014, 06:49:04 PM in the thread Static IP and network defense. All content is owned by the author of the bitcointalk.org post. (original)


If you have a good firewall then it should drop the DDOS.

The following content was written by cp1 on January 07, 2014, 06:49:14 PM in the thread Static IP and network defense. All content is owned by the author of the bitcointalk.org post. (original)


My new router has a checkbox that says “Enable DDOS protection”. No idea if it works well. I’m sure Cisco could sell you something, but I don’t think you’d like the prices. There’s got to be something you can install in a linux box.

The following content was written by Hax8 on January 09, 2014, 08:59:14 PM in the thread Static IP and network defense. All content is owned by the author of the bitcointalk.org post. (original)


It is really difficult to counter a DDoS. Protection built in to the router/firewall just drops the rogue packets without replying but there is no way the router can stop all that traffic from still traversing the pipe and hitting your router/firewall.

You can either:
– Have more bandwidth than the attackers which will still allow your legitimate traffic. With amplification attacks, this is very costly!
– Have your ISP block the traffic further upstream leaving your pipe free.
– Use one of the companies that provide this service which normally means you use them as a proxy hiding your true IP.
– Setup your own proxies in hosted datacentre’s and hide behind those.

That is all I can think of at the moment.

If the mining setup is in your home/office, I would just pull in another internet pipe. Preferably with a different ISP and switch to that when required. Or just use a dedicated line for the miners minimising exposure of your IP to third parties.

The following content was written by cp1 on January 09, 2014, 09:03:17 PM in the thread Static IP and network defense. All content is owned by the author of the bitcointalk.org post. (original)


You could always tell your ISP you’re being attacked and maybe get a new IP assigned? Or go through a VPN for $10 a month for all your traffic.
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Mining

Is it possible to put everyone in a single large mining pool?

Is it possible to put everyone in a single large mining pool, and share mining reward equally among miners based on hash power and shares.

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The following content was written by btcusr on December 27, 2013, 02:55:55 AM in the thread Is it possible to put everyone in a single large mining pool?. All content is owned by the author of the bitcointalk.org post. (original)


Is it possible to put everyone in a single large mining pool, and share mining reward equally among miners based on hash power and shares.

The following content was written by Peter R on December 27, 2013, 02:57:45 AM in the thread Is it possible to put everyone in a single large mining pool?. All content is owned by the author of the bitcointalk.org post. (original)


Yeah, it’s this really big peer-to-peer pool called “bitcoin.” Tongue

The following content was written by e521 on December 27, 2013, 02:59:42 AM in the thread Is it possible to put everyone in a single large mining pool?. All content is owned by the author of the bitcointalk.org post. (original)


Is it possible to put everyone in a single large mining pool, and share mining reward equally among miners based on hash power and shares.

Yes you can but you should also trust the mining pool owner
Why do you want to use a decentralized system in a centralized way? Think about it…

The following content was written by Phantomic on December 27, 2013, 03:05:21 AM in the thread Is it possible to put everyone in a single large mining pool?. All content is owned by the author of the bitcointalk.org post. (original)


Well assuming even if the impossible happened and every pool miner switched to the same pool, we would still have solo miners who wouldn’t be apart of the pool.

The following content was written by btcusr on December 27, 2013, 03:11:12 AM in the thread Is it possible to put everyone in a single large mining pool?. All content is owned by the author of the bitcointalk.org post. (original)


Why should we trust pool operators? Can distribute this trust among miners?

The following content was written by Phinnaeus Gage on December 27, 2013, 03:12:24 AM in the thread Is it possible to put everyone in a single large mining pool?. All content is owned by the author of the bitcointalk.org post. (original)


Well assuming even if the impossible happened and every pool miner switched to the same pool, we would still have solo miners who wouldn’t be apart of the pool.

Excellent point! As long as there’s as least 51% of solo miners all is well.

The following content was written by empoweoqwj on December 27, 2013, 03:38:17 AM in the thread Is it possible to put everyone in a single large mining pool?. All content is owned by the author of the bitcointalk.org post. (original)


Is it possible to put everyone in a single large mining pool, and share mining reward equally among miners based on hash power and shares.

No, because not everyone wants to be controlled by a pool – “single mining”

The following content was written by BitcoinBarrel on December 28, 2013, 02:51:50 AM in the thread Is it possible to put everyone in a single large mining pool?. All content is owned by the author of the bitcointalk.org post. (original)


Yes, it is possible. Is it likely? No, not at all.

The following content was written by jongameson on December 30, 2013, 12:12:12 AM in the thread Is it possible to put everyone in a single large mining pool?. All content is owned by the author of the bitcointalk.org post. (original)


it would be boring as f%*$. the only reason people keep up this charade is they *think* they could beat the odds and get that 25 BTC faster.

The following content was written by empoweoqwj on December 30, 2013, 03:13:08 AM in the thread Is it possible to put everyone in a single large mining pool?. All content is owned by the author of the bitcointalk.org post. (original)


it would be boring as f%*$. the only reason people keep up this charade is they *think* they could beat the odds and get that 25 BTC faster.

What charade? Running solo?

The following content was written by byt411 on January 09, 2014, 03:54:25 PM in the thread Is it possible to put everyone in a single large mining pool?. All content is owned by the author of the bitcointalk.org post. (original)


The whole point of bitcoin is to be a decentralized currency, and now you are suggesting to centralize it?

The following content was written by Akka on January 09, 2014, 03:57:36 PM in the thread Is it possible to put everyone in a single large mining pool?. All content is owned by the author of the bitcointalk.org post. (original)


Yes, it’s even possible for the network to remain decentralized: https://en.bitcoin.it/wiki/P2Pool

(Althoug, basically with P2Pool everyone is solo mining and just shares the rewards)

The following content was written by mitty on January 09, 2014, 05:27:52 PM in the thread Is it possible to put everyone in a single large mining pool?. All content is owned by the author of the bitcointalk.org post. (original)


Yes, it’s even possible for the network to remain decentralized: https://en.bitcoin.it/wiki/P2Pool

(Althoug, basically with P2Pool everyone is solo mining and just shares the rewards)
Everyone mining on p2pool would be the same as solo mining at 1/60th of the actual Bitcoin network difficulty which is still really high.

I’m assuming the stale share rate would also significantly increase.

The following content was written by Akka on January 09, 2014, 05:32:39 PM in the thread Is it possible to put everyone in a single large mining pool?. All content is owned by the author of the bitcointalk.org post. (original)


Yes, it’s even possible for the network to remain decentralized: https://en.bitcoin.it/wiki/P2Pool

(Althoug, basically with P2Pool everyone is solo mining and just shares the rewards)
Everyone mining on p2pool would be the same as solo mining at 1/60th of the actual Bitcoin network difficulty which is still really high.

I’m assuming the stale share rate would also significantly increase.


Both can be fixed with implementations like this: https://miner.ecki.net:444/

(“Real” Pool, that mines against P2Pool, don’t know if still active)

The following content was written by empoweoqwj on January 10, 2014, 02:29:10 AM in the thread Is it possible to put everyone in a single large mining pool?. All content is owned by the author of the bitcointalk.org post. (original)


Any form of centralized mining is a bad idea as we have found out with ghash getting near 51%

Not sure if p2pool is the answer, but we need something.
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