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2741  Alternate cryptocurrencies / Mining (Altcoins) / Re: Any experience with using PCIe 1X interface? on: January 02, 2014, 09:51:24 AM
I was wondering if anybody have tried utilizing the PCIe 1X interface for scrypt mining?

Normally you would plug in the graphics card in the PCIe 16 connector, I have a few mobo's lying around with only 1x16X and 2x1X connectors, would be nice to utilize them instead of buying new mobo with 3-4 16X connectors.
I believe the bandwidth for the jobs send to the GPU do not need x16 speed - but will the driver and cgminer react to only having a 1X connection?

Have anybody tried with a adapter like:
http://www.amazon.com/HOTER-PCI-E-Extension-Cable-Adapter/dp/B0057M1ZLE/ref=sr_1_2?s=electronics&ie=UTF8&qid=1388654619&sr=1-2&keywords=PCI-Express+PCI-E+16X+Riser+Card+Flex+Flexible+Ribbon+Extender+Extension+Cable

The unpowered riser cable will only work with older cards, use a powered riser cable instead.

How will the driver and cgminer reach when the graphic card is connected to PCIe 1X, will it be fine and dandy?

Thinking about getting one of the riser with power support (something like this):
http://www.amazon.co.uk/PCI-E-Powered-Ribbon-Extender-Adapter/dp/B00H8ODPXK/ref=sr_1_4?ie=UTF8&qid=1388656072&sr=8-4&keywords=PCI+Express+PCI-E+16X+Riser

At least it could be a fun experiment to see how the performance are.

btw. I am using R9 280X cards.


2742  Alternate cryptocurrencies / Mining (Altcoins) / Any experience with using PCIe 1X interface? on: January 02, 2014, 09:29:56 AM
I was wondering if anybody have tried utilizing the PCIe 1X interface for scrypt mining?

Normally you would plug in the graphics card in the PCIe 16 connector, I have a few mobo's lying around with only 1x16X and 2x1X connectors, would be nice to utilize them instead of buying new mobo with 3-4 16X connectors.
I believe the bandwidth for the jobs send to the GPU do not need x16 speed - but will the driver and cgminer react to only having a 1X connection?

Have anybody tried with a adapter like:
http://www.amazon.com/HOTER-PCI-E-Extension-Cable-Adapter/dp/B0057M1ZLE/ref=sr_1_2?s=electronics&ie=UTF8&qid=1388654619&sr=1-2&keywords=PCI-Express+PCI-E+16X+Riser+Card+Flex+Flexible+Ribbon+Extender+Extension+Cable
2743  Local / Skandinavisk / Re: Ønsker å starte med "mining" on: December 31, 2013, 08:56:24 PM
Bitcoins mining er kun for pro's nu- ingen profit ved at mine BTC, med mindre man har gode forretnings forbindelser.
Men scrypt, der er der gode muligheder for profit.
2744  Economy / Securities / Re: [BitFunder] - ADDICTION - KNCMiner - Now hashing at 14+TH! on: December 31, 2013, 08:51:32 PM
Hey Guys,

We changed the miner passwords the day they came in to prevent just this from happening Smiley Also, none of the miners have a direct internet connection but are behind a firewall on an internal network.

But thanks for the warning! can't be careful enough these days it seems...

Cheers,


Awesome - great to hear that the miners are safe.
Happy newyear everybody  Smiley
2745  Local / Skandinavisk / Re: Ønsker å starte med "mining" on: December 31, 2013, 12:51:50 AM

Koster et Sapphire HD7950, kr 6840 i Norge??!!!
De koster ca. 2000 kr i Danmark.
2746  Local / Skandinavisk / Re: Ny pc on: December 30, 2013, 01:57:02 PM
Takker for alle svar:)

Jeg har lige bestilt 2 x R9 280X (til at erstatte mine 2 x HD7850), jeg har brugt en del tid på at undersøge hvor man får det bedste kompromis mellem strømforbrug, pris og performance.
Jeg stod mellem Sapphire R9 290 og MSI R9 280X, jeg valgte MSI R9 280X da det er meget billigere i pris og har en meget bedre cooler.

De skulle kunne tjene sig hjem på 2-3 måneder  Grin
2747  Local / Skandinavisk / Re: Ønsker å starte med "mining" on: December 29, 2013, 07:05:09 PM
Hvis du vil tjene noe på dette uten å bruke masse penger hadde jeg minet ltc. Personlig miner jeg anc.


Hvilket hardware har du personlig ?

Tenker at jeg kommer til å mine Ltc, siden jeg kan bruke grafikkort. Men jeg får vell ikke mere en rundt 2Mh/s  for en pris av rundt 10 000 NOK ?

Har det hovedkortet jeg linket til pluss billig sempron cpu, sammen med et sapphire 7970 og to 7950. Får skvist ut rundt 2000 kh/s av riggen. leter etter billige 7950 men de er bortimot umulige å få brukt nå.

Anbefaler deg forøvrig denne tråden https://bitcointalk.org/index.php?topic=365181.0;topicseen


Er nybegynner og lurer litt på hvordan det funker å ha forksjellige skjermkort koblet sammen ? er dette noe som funker bra , eller bør jeg ungå dette?

Skal gå bra, men hvis du begynner å mixe radeon og gtx må du bruke forskjellige mining programmer henholdsvis cgminer og cudaminer. Derfor lettest å holde seg til en standard.

Hei!
så litt på finn.no og fant denne pcen http://www.finn.no/finn/torget/annonse?finnkode=45892772&searchQuery=pc for 1400. jeg tenkte at jeg kunne kjøpt denne får å så settet inn http://www.finn.no/finn/torget/annonse?finnkode=45769797&searchQuery=pc og eventuelt 3 http://www.proshop.no/Grafikkort/Club-3D-Radeon-13Series-HD-7950-grafikkort-2421710.html. Vist dette hadde funket hadde det blitt en grei pris samtidig som jeg får en grei ytelse Wink

Det vil gå til helvete.

Du har fått veldig gode råd av Apraksin. Gå tilbake og les guiden eg linka til og les alle svara til Apraksin.

+1

Ja, se hvad Apraksin skriver, han har ret.

Jeg har taget mine BTC miners offline for 6 måneder siden (FPGA). Nu miner jeg LTC (og DOGE) med GPU.
Jeg invistere kun i BTC via Group buy, bitcoin er kun for pro's nu.


2748  Local / Skandinavisk / Re: Ny pc on: December 29, 2013, 02:53:11 PM
Hey! Skal kjøpe meg ny stasjonør pc.
Og då hadde det vært gøy med en pc som samtidig hadde vært god å "mine" med.
Har veldig lite greie på pc specs, og hva som kreves av en pc til mining. Noen som har noen gode forslag?
Ser for meg en pris mellom 5000-7000 kr.

Takker på forhånd:)

Tyvärr måste jag göra dig besviken. Det är helt meningslöst att minea med en PC, om du inte ska minea någon av Scrypt valutorna. All Bitcoin mining har flyttat till ASICs, och innan dess var det FPGA, och innan dess var det grafikkort. Det har inte verit meningsfullt att minea med en PC på ungefär tre år.

Mats

+1

Du skal købe en PC som du kan mine Scrypt med (f.eks. Litecoin). Gå efter et powerfull graphicscard f.eks. R9 290 eller R9 290x.
https://litecoin.info/Mining_hardware_comparison

Derudover så kan du tænke på at vælge en PC som har en powerfull PSU (f.eks.1200W) og et motherboard har min. 2 PCIx16 slots, så du senere can sætte et extra grafik kort i.




2749  Alternate cryptocurrencies / Altcoin Discussion / Re: GPU mining for alt coins with R9 280x cards on: December 29, 2013, 09:57:25 AM
Undervolting can reduce consumption as much as 50W so def worth a try.  Here are some links to review that may be helpful:

http://www.cryptobadger.com  (has some links to guides and info regarding undervolting)

http://www.techpowerup.com/forums/threads/vbe7-vbios-editor-for-radeon-hd-7000-series-cards.189089/page-18

These links reference 7000 series a lot but also include some 2xx and 280x specific info

What are the power difference?
50W reduction from what stating point? 250W to 200W ?
2750  Alternate cryptocurrencies / Altcoin Discussion / Re: GPU mining for alt coins with R9 280x cards on: December 29, 2013, 08:06:29 AM
Hey everyone,

I'm currently building a GPU mining rig with two MSI R9 280x cards, and was wondering if anyone here knows how to under-volt them?

I'll be running them on a linux system, so I can't use the utilities provided by MSI.

I will eventually add two more cards to this rig, so I need to reduce the power-draw per card. I'm putting a 1200W PSU on this rig.

Looking forward to your replies.

Cheers!

I was curious about your power budget. How much power are you planing to save per card by undervoltage them?
2751  Local / Skandinavisk / Re: Mining hardware ønsker kjøpt. on: December 28, 2013, 05:12:05 PM
Leasing af mining udstyr

50 GH/s - 1,5 TH/s

www.cryptomine.dk


Kan du ikke prøve at forklare lidt om din forretning istedet for bare at spame forum med reklame hver gang en newbee spørger omkring hvordan man kommer igang med at mine?
Gerne forklar lidt nærmere om:

"Nyeste teknologi - CryptoMine har det nyeste udstyr og teknologi for at give dig maximal mining kraft."

Hvilken teknologi er det i har planlagt at køre med, er det black arrow, KnC, eller noget tredje?
Hvad er den præcise start for udstyr kommer online, er der nogen adminstrations omkostninger?

Profit udregning:
50 GH/s
Aftalen løber i 3 måneder
Udbytte 1,92 BTC

Vil det sige at i regner med 0% ændring i difficult?
Mit mest optimistiske bud vil være omkring 60% stigning per måned, men det bliver nok realistisk 90-100%/måned i Q2.
2752  Local / Skandinavisk / Re: Mining udstyr on: December 28, 2013, 04:31:31 PM
Hejsa

Jeg er på udkig efter udstyr hvor jeg kan "mine" omkring 1 BTC pr dag.

Er der nogen der har noget brugt udstyr til salg ? Eller som kan hjælpe mig med at samle noget brugbart ?


du kan kigge lidt på det her.

www.cryptomine.dk

Leasing af mining udstyr på kontrakt.

50 - 500 GH/s

Større løsninger, kontakt dem på mail.

Kan du ikke prøve at forklare lidt om din forretning istedet for bare at spame forum med reklame hver gang en newbee spørger omkring hvordan man kommer igang med at mine?
Gerne forklar lidt nærmere om:

"Nyeste teknologi - CryptoMine har det nyeste udstyr og teknologi for at give dig maximal mining kraft."

Hvilken teknologi er det i har planlagt at køre med, er det black arrow, KnC, eller noget tredje?
Hvad er den præcise start for udstyr kommer online, er der nogen adminstrations omkostninger?

Profit udregning:
50 GH/s
Aftalen løber i 3 måneder
Udbytte 1,92 BTC

Vil det sige at i regner med 0% ændring i difficult?
Mit mest optimistiske bud vil være omkring 60% stigning per måned, men det bliver nok realistisk 90-100%/måned i Q2.



2753  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][DOGE] Dogecoin - very currency many coin - v1.3 Released MANDATORY UPDATE on: December 27, 2013, 04:55:23 PM

I am mining at dogehouse at the moment, cgminer say that I am mining with 520 kH/s, but in the dogehouse dashboard I have been pretty constant around 300 kH/s.
Is that big different due to pool inefficiency?

Is there any suggestions how to achieve a better actual hashrate?

Usually your effective rate at the pool's end goes up and down around the actual rate your device is working at, because of higher number of shares delivered and conversely higher number of rejected shares.

Are you having a very high reject rate? The pools only take into consideration the shares that get accepted, so rejects will cause your effective hashrate to be lower than the actual amount of work your device is doing. Sometimes this happens even on pools that run variable difficulty for shares; you might want to try a pool where you can set the share diff for your workers manually and try going lower and lower for 10-15 minutes at a time until you land somewhere acceptable. Check out the "help" section on multipool.us, as that pool lets you control the share diff manually.

Well, my reject rate for the last 500 shares are 1-2%... but I am never anywhere close to the cgminer hashrate, even with the rejects taken into consideration. Is this because of the variable difficulty? I guess a lower hashrate is ok in PPLNS, since the shares with higher diff gives higher profit, right? 
2754  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][DOGE] Dogecoin - very currency many coin - v1.3 Released MANDATORY UPDATE on: December 27, 2013, 02:44:35 PM

I am mining at dogehouse at the moment, cgminer say that I am mining with 520 kH/s, but in the dogehouse dashboard I have been pretty constant around 300 kH/s.
Is that big different due to pool inefficiency?

Is there any suggestions how to achieve a better actual hashrate?

Hashrate on any pool site is based on the number of shares you submit. It's never going to be exactly the same as you see in cgminer because of the variance. cgminer knows the exact value, pool only guesses based on shares submitted. Mine varies by +/- 25% all the time.

tl;dr It's normal. there's nothing wrong with the pool or your miners.
the weird thing is im always down 20% below or so, never up 20% nor 5%

Thanks for the explanation metalphreak.
I have the same as ricm, I have never seen the hashrate reported by the pool been anything close to the miner hashrate... I guess I am just unlucky with finding shares Sad
2755  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][DOGE] Dogecoin - very currency many coin - v1.3 Released MANDATORY UPDATE on: December 27, 2013, 12:50:21 PM

I am mining at dogehouse at the moment, cgminer say that I am mining with 520 kH/s, but in the dogehouse dashboard I have been pretty constant around 300 kH/s.
Is that big different due to pool inefficiency?

Is there any suggestions how to achieve a better actual hashrate?
2756  Local / Skandinavisk / Re: Mining udstyr on: December 27, 2013, 09:25:08 AM
Enig - Har kig på en Butterfly labs 60 GH/S så er man da noget af vejen

Med 60 GHash/s, så har du nået cirka 2% af dit mål... så det er desværre kun et meget lille stykke af "vejen".

Du vil kunne mine ca. 0.026 BTC om dagen med nuværende difficulty.

Om ca. 6 dage ved næste justering vil det så falde til    ca. 0.023 BTC om dagen.
2757  Local / Skandinavisk / Re: Mining udstyr on: December 27, 2013, 09:22:00 AM
bare lige lidt fakta: for at mine 1 btc om dagen ska du op på +101000 mh/s det giver pt = 0.9997 btc om dagen

held og lykke Smiley

Øhhh... din regne maskine er gået i stykker.

For at mine 1 BTC om dagen skal du have 2,35 THash/s (2350000 MHash/s) med nuværende difficulty.


2758  Local / Skandinavisk / Re: asic miner hvad skal jeg mine? on: December 27, 2013, 08:58:07 AM
Der er vel ikke meget at vælge i mellem.
Din asic miner kan kun mine SHA basseret coins, så det begrænser dig til bitcoin og namecoin, som du med fordel kan mine samtidig med merged mining.
Men med 666 MHash/s, så får du næppe nogen særlig profit ud af det.
2759  Bitcoin / Pools / Re: Ghash.io fail? on: December 27, 2013, 06:51:59 AM
You're really going to mine at ghash.io? https://bitcointalk.org/index.php?topic=327767.0

+1

I see ghash.io as the single bigest treat to bitcoin that exist today.


not sure if u mean treat or threat ....

My intenstion was to write threat.

as in:

a statement of an intention to inflict pain, injury, damage, or other hostile action on someone in retribution for something done or not done
2760  Alternate cryptocurrencies / Altcoin Discussion / Re: How to Optimize 2 x HD 7850 with AMD Catalyst Control on: December 26, 2013, 10:52:00 PM

It is a very nice link, thank you so much.

The guide can of cause be used to control the 2 cards, but it also explain how to crossfire the two cards.
I was kinda assuming that crossfire could not give you any extra hashing power in scrypt minings, since you are already running the GPU's at maximum efficiency, is that assumption correct?
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