Inquiry on Desktop PC based Cryptocurrency Mining Rig

[lloyd_joy]

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peeps,

sa mga bitcoin/litecoin ug sa uban pang mga cryptocurrency miners diri, ask ko's inyohang mga bulawanong commentaryo.

last night, had set up my 3 rigs to do Bitcoin mining. this is for me to feel the waters in mining for a cryptocurrency. anyhow, got some problem on one of the rigs. see the details below. i'm using GUIMiner and used OpenCL for all. i had just set the GPU to do the work load. the average hash rate was taken from the Report Summary of my account @ BitcoinCZ. it's a 20 hrs average data.


> entertainment rig:
GPU0: Palit GT 240 DDR5
PSU: Super Flower SF-450P14XE(HX)... true rated 450W... 80+ Au certified
average hash rate: 25.06 Mhash/sec


> m-ATX gaming rig (CrossfireX disabled):
GPU0: Onda HD7770 GHZ Ed (added a 10% OC on the core & mem frequencies)
GPU1: Onda HD7770 GHZ Ed (added a 10% OC on the core & mem frequencies)
PSU: Super Flower SF-450P14XE(HX)... true rated 450W... 80+ Au certified
average hash rate (GPU0): 60.85 Mhash/sec
average hash rate (GPU1): 196.67 Mhash/sec

** observation: modagan ug the same hash rate speed and GPU0 as that of GPU1 pero, dili permi. mo kalit lang ug peak then down to a run rate of 70 ~ 90 Mhash/sec. GPU1 is running at a run rate of 188 ~ 209 Mhash/sec. I don't have any idea on how to fix this since i'm a beginner on this hype
- Is the problem due to the given work load or there is another culprit?
- Stopped GPU1 on the mining work load... result: GPU0's running hash rate increases to its normal 188 ~ 209 Mhash/sec value.
- I'm pretty sure, the installed PSU can handle the m-ATX gaming rig's DC load including the dual HD 7770 GHz Ed running @ full load with no sweat...


> main gaming rig (SLI disabled):
GPU0: Yeston GTX 670 (added a 15% OC on the core & mem frequencies)
GPU1: Yeston GTX 670 (added a 15% OC on the core & mem frequencies)
PSU: Corsair TX750W true rated 750W... 80+ certified
average hash rate (GPU0): 115.73 Mhash/sec
average hash rate (GPU1): 105.06 Mhash/sec

Note: Nvidia GPUs (up to Kepler) is not good for cryptocurrency mining. Kepler and below micro-architectures are just "bad" on a "Performance to Power Consumption ratio"... as well as the "Performance to Price ratio" on cryptocurrency mining.



i'm pondering to change the GPU of my entertainment rig from the old and trusted GT 240 to the newer GTX 750 Ti (Zotac Thunderbolt) or, i'll just go straight ahead and buy AMD's offering. on this intended application, cryptocurrency mining, AMD is second to none for now (for GPU based mining). but, the GTX 750 Ti is trailing on its AMD's counter part offering and i'm pretty sure when the mid and high level Maxwell will arrive, they will give AMD a run for their money on this specific work load. but, tomorrow is for another discussion. let's focus the talk on today's GPU offerings for crytocurrency mining use. for AMD now, pili lang ko ani nila... Yeston/ Maxsun/ Colorful/ Sapphire R9 270/ R9 270X/ R9 280X, PC Devil R9 270x/ 7870, EVGA HD 7950/ 7970... kani kun mo push ko aning apil2x ug mining gyud... hehehehe...

please rain down all your comments... positive & negative are all welcome... let us shoot the stars!

salamat...

[lloyd_joy]

update on CryptoCurrency here in main land China... not a good news... tsk tsk tsk... gahapon ni na news... timing pa gyud sa pag sugod nko... pachay... hhhhaaaayyyy...

World's Largest Bank ICBC is Latest to Block Bitcoin in China

[Sempron Guy]

Ayaw mine diretso ug bitcoin sir, reign na na sa asic miners nga coin. What's more profitable now is to mine altcoin and sell them for bitcoins. Alt coins vary in value and value change from time to time so that is where the fun starts. Same concept sa stock market, you hold the coin till the value rises. Timing is crucial. Best hash/watt card is the 750 Ti but mas dako siya investment since, gamay ra hash per card. As to what coin to mine, naay mga sites ga provide unsay profitable nga coin ana nga adlaw or there are auto switching pools ( "so called servers where you mine your coins ) all you have to do is set the miner and they'll do the rest.


Bahin tuod anang pag black sa china sa bitcoin, mao na reason nibaba ang bitcoin value karon. But the bitcoin craze is spreading across the globe. It will take more than china to destroy an almost established crypto currency. Naay laing exchange sites where you can sell it and pwede i link sa imo paypal. Naa poy mga locally based exchange sites diri sa pinas.

[lloyd_joy]

mao gyud bro... for the powerful config ra ning to mine for Bitcoins directly and generate profit. pero, nag basa2x ko's news diri ron. not good man gyud... tsk tsk tsk. kuyawan ko na ma timingan unya ta's "crackdown"... so, akoang gi stop na ang mga rigs diri'g mine... it would be better to be safe than sorry... lisod diri labi na kun dili ta mo follow sa law or official government mandate... tomas atoang labas... hehehe... i'll just add this GPU budget to my Phil stock market investment... akoa ra ba gyud ning gi gahin unta after naka invest ko for this month of May sa COL... hhhaaayyy...

i'll just rest my case for now... so, abort lang usa ang plan to buy a new GPU for Cryptocurrency mining...

anyhow, thanks for the input bro... if ever gani mo relax na ni diri about Cryptocurrency, i'll ask for your advice then kay naa man gyud ka sa ani na activity ron...

[lloyd_joy]

another update for today...

nag istorya mi's IT Sr Mgr namo diri ganiha... nag ask ko if prohibited ba ang pag mine ug Cryptocurrency diri's China. ingon sya na dili ra kuno. but, dili na lang maka transact sa bank, shops or any business entities kay bawal naman. mine at your own sa mi diri... kun dili ma gasto sa mga miners diri officially, basin, naa'y mo tunga na un-official na... hehehe... "black market" transaction na in which, mas kuyaw ni... dili ta mag apil2x ani kay ma sikwakoy unya ta's goberyno... ang mining per se, allowed ra kay ang miners man ang nag bayad sa kuryente... hahay...

now, i'm back to the drawing board... mag GPU hunting2x... hehehe... para sa akoa, mao ni ang pinaka nice na stage baya... kay wala'y actual amount spent then, daghan knowledge na masulod sa kaban due to research...


paging bro Sempron, ask ko nimo... unsa'y maayo, R9 270, R9 70x, R9 280 or R9 280x for mining? between the 270 variants, mura'g ang 270 (non-X) ang mas bang for the money kay mas barato ang actual na ma shell out then gamay ug kaon sa kuryente unya, duol2x ra sila'g hash rate. the 280 variants, mas better gyud ni sila but, dako2x ta'g electric bill ani... then, how about the previous generation, HD 7850, 7870, 7870 Extreme, 7950 & 7970? fact is, mas, ubos ni sila'g hash rate compared sa ilahang next generation but, cost wise, if mas lesser ni sila, mas better ba kaha ni paliton? or should i buy the current AMD offerings para mas better ang "hash rate to cost" ratio...

dili man mo mater ang GPU VRAM aning mining noh or, mag depende kun unsa ang Cryptocurrency na gi mine?

thanks

[Sempron Guy]

another update for today...

nag istorya mi's IT Sr Mgr namo diri ganiha... nag ask ko if prohibited ba ang pag mine ug Cryptocurrency diri's China. ingon sya na dili ra kuno. but, dili na lang maka transact sa bank, shops or any business entities kay bawal naman. mine at your own sa mi diri... kun dili ma gasto sa mga miners diri officially, basin, naa'y mo tunga na un-official na... hehehe... "black market" transaction na in which, mas kuyaw ni... dili ta mag apil2x ani kay ma sikwakoy unya ta's goberyno... ang mining per se, allowed ra kay ang miners man ang nag bayad sa kuryente... hahay...

yup daghan man exchange site nga dili china based, tapos through paypal dayon ang transaction or imo earning sa phil based bitcoin site nimo ibaligya, I'm sure naa kay bank account dri pinas?

now, i'm back to the drawing board... mag GPU hunting2x... hehehe... para sa akoa, mao ni ang pinaka nice na stage baya... kay wala'y actual amount spent then, daghan knowledge na masulod sa kaban due to research...

paging bro Sempron, ask ko nimo... unsa'y maayo, R9 270, R9 70x, R9 280 or R9 280x for mining? between the 270 variants, mura'g ang 270 (non-X) ang mas bang for the money kay mas barato ang actual na ma shell out then gamay ug kaon sa kuryente unya, duol2x ra sila'g hash rate. the 280 variants, mas better gyud ni sila but, dako2x ta'g electric bill ani... then, how about the previous generation, HD 7850, 7870, 7870 Extreme, 7950 & 7970?

actually wa ra kaayo dako difference in terms of hash kay most are rebrands, 280x is on par sa 7970 in terms of hashrate and so on. If hash/watt ang istoryahan pinaka efficient ang R9-270 non-x and HD7950. But the argument if sa R9-270 ka pananglitan, on a 6 slot motherboard it will give you max total around 2.5 mh/s w/ minor oc on scrypt. Dako tuod kaon ang 280x for example, pero makatipid ka sa board, procie ug ram, kay on a 6 slot board if ma populate nimo tanan it will total to around 4.5mh/s. Same sa 750Ti, probably the best watt/hash card overall. But gasto pud ka additional sa board, procie ug ram kay on a 6 slot board, around 2.1mh/s

fact is, mas, ubos ni sila'g hash rate compared sa ilahang next generation but, cost wise, if mas lesser ni sila, mas better ba kaha ni paliton? or should i buy the current AMD offerings para mas better ang "hash rate to cost" ratio...

if maka kita ka ug HD7950 kana one of the best in terms of watt/hash/cost, but sa akoa R9-270 non-x nindot but mao to lage if mag dugang ka kelangan pa spend more for another mining set-up rig

dili man mo mater ang GPU VRAM aning mining noh or, mag depende kun unsa ang Cryptocurrency na gi mine?

so far dili, sa current algorithm wa pay ni resulta sa dako nga hashrate tungod dako ang vram

thanks

[lloyd_joy]

bro Sempron,

thanks... yup, naa ko bank account dha sa Pinas. metrobank... naa man metrobank nko diri sa Pudong, Shanghai. bali, diri ra ko mag deposit pud para sa akoang investment sa Phil stock market... ginagmay ra gud basta kanunay... charing... hehehe... bitaw, it is nice to invest man maong, my investor spirit kicks-in... napatiran ang akoang gaming passion... tuwingwingwing... pila kaha ning used GTX 670 dha sa pinas... mahalin kaha ni'g 10K each? ayay... sinaw pa ra ba ni kaayo sila... mamords pa kaayo. like new. I had OC'ed the core and mem clocks for 10%... but, sa isa ka buwan, mura'g maka duwa ra ko ani nila ug 2 hrs... white elephant man ni diri's balay... tsk tsk tsk...

i plan to use the 3 slots of my Fatality... for AMD GPUs... mura'g padung ko'g "bye2x" sa akoang dual GTX 670 ani... hehehe... ok bro, ngita ko'g ubos2x ug price na HD 7950... or R9 280 (non-X)... yay, basin ilis ko'g PSU ani diay dah... 750 W ra man ang current PSU sa main gaming rig nako diay... hinoon, pwede ra man ko mag hinay2x ug pamalit...

thanks bro.

[LordZhen]

better go for amd cards, compared to nvidia, and a higher cards specially the 280x since wala nay 7970, but if yo u can find one ok na kaayo even the 7950. And for a better kick start jud, 4 gpu pag sugod hehe para dli na kaayo ka bilin sa difficulty sa alt coins

[lloyd_joy]

yes bro LZ, tabaghak man ning Kepler sa mining... hehehe... wala man gud ko mag gaming kay bz kaayo. maong, akoa lang ning i-convert ang gaming rigs into mining rigs... daghan pa stocks diri sa HD series...

akoa unsa ning study-han pag ayo bros... mura'g nice gyud ang hash rate sa HD 7970 & R9 280X based sa price nila...

[LordZhen]

Yea, for gpu mining, mas need nimu mo focus on alt coins, specially some alt coins are invaded by asics now, like the scrypt algo used in litecoin and dogecoin, for your gpu's to be sufficient, opt to mine adaptive n-scrypt, x11 and scrypt jane algo coins