For sale: 2x Power Color HD 7970 - $75 Each 3x Gigabyte HD7970 - $75 Each Because some people care - This was part of the first mining rig my company ran. They mined Bitcoin directly before Asics were created. After that they sat in a Closet and honestly we just forgot about them. So they have been sitting for quite a while. I couldn't tell you how long. 678 Cases: The case measures 6.5” tall x 7.5” D x 8.5” W. (Get it? 678….) The entire case is approximately 6.78 Liters. Boasting a unique bolt together design, and an all steel construction with ample airflow it provides excellent heat efficiency. Every 678 Case is industrial powder coated for extreme durability. If you want the smallest PC possible with a discrete GPU and power supply built in, the 678 case is for you. So join the 678 family today! Colors: Gloss White, Textured Black, Black/Green Max component sizes: Motherboard – ITX Form Factor Power supply – Small Form Factor (SFF) required GPU – Length: 183mm / Height: 130mm CPU cooler – Height: 60mm Hard drive – No 2.5” or 3.5” Hard drive mounting is provided – m.2 is recommended External Fans – No external fan locations Water cooling – Not even remotely possible What is in the box?
well I got some stuff to sell, shipping included unless local only (80023 broomfield co), prices obo but I may not budge much depending on the item. -----wanted----- paypal local cash bitcoin, ether, zcash -----will only consider if it is a trade or amazing deal as my budget is short till i sell more----- RX 480 RX 470 r9 290(x) r9 390(x) fury(x) 295 x2 pro duo other computer related stuff. -----items----- 2x evga gtx 980ti- $325 or $600 for both + hbw sli bridge (both acx 2.0+ one sc+)(would entertain trades for nice amd cards+cash)(would love to trade for highend amd card +cash or multiple cards) ASUS HD 7850- $65 (never oc'ed light mining)(have a second one that has no display and a slight fan rattle that works for crossfire or mining -$45) R9 270x- $75 replaced fan with 80mm delta. stays extremely cool and isn't overwhelmingly load (small OC, mined on) Amd Firepro S7000 -AS IS- $80 beast of a workstation card and fairly rare it overclocked higher then any comparable chip I own. I believe I have pinpointed the issue (check pics) but I dont have the time or supplies to fix it once again sold as-is no returns I can go more in depth on request. MSI Eclipse Plus X58 LGA 1366 motherboard- $120 (not much to say grab a nice cpu and oc it :D ) now for the 64bit phone case+a phone the case has a Jetway PICO NP93-2930 computer with a intel N2930 quad core 1.83 ghz cpu. it also has 2 gigs ddr3 ram and a 128 gig msata ssd. Additionally, it has a voltage converter and a lipoly low voltage cut-off with cuttof it opperates from 12.5v ish to 11v will include 1000 mah 3 cell lipo. the phone is a Chinese generic android. Im only selling this because I switched to a 64 bit zenfone 2 for the sake of portability but honestly this ran windows WAY better then the zenfone does. has 2012 server on it atm. feel free to ask away. -$200 -----local only----- vizio m321i a2 monitosmart tv- $150 (1080p 120hz 32 inch this is the second one I have I currently use and enjoy the one on my main rig but I dont need 2 32 inch screens) lg 920p monitor-$40 (details on request) dell r900 server-$140 (4p 2.8ghz? 64 gigs ram additional details on request)( i also have another one missing cpu's raid controller a few fans and one of the two psu with only 48 gigs of ram i will let go for $80) 2x Cisco Pwr-rps2300 Redundant Power system-$40 each $60 for two (each includes 2 1150 watt power supplys) ?dell 2850?-$30 (sitting along time failed raid sold as is because of that) corsair cx 550m-$40 corsair ax 750-$60 some pics-http://imgur.com/a/uRQ8Z ---sold--- NIB Intel 5820k-sold gigabyte gtx 960-sold EVGA gtx 750 ti-sold asus gtx 770-sold r9 280x-sold r9 280-sold hd 7970-sold hd 7950-sold zotac gtx 980ti-sold 1 vizio m321i a2 monitor-sold Some BTC-sold
well I got some stuff to sell, shipping included unless local only (80023 broomfield co), prices obo but I may not budge much depending on the item. Bitcoin preferred. Minimum order $40. -----wanted----- paypal local cash bitcoin, ether, zcash -----will only consider if it is a trade or grate deal as my budget is short till I sell more----- RX 480 RX 470 r9 290(x) r9 390(x) fury(x) 295 x2 pro duo other computer related stuff. -----items-----
ASUS HD 7850- $65 (never oc'ed light mining)(have a second one that has no display and a slight fan rattle that works for crossfire or mining -$45)
R9 270x- $75 replaced fan with 80mm delta. stays extremely cool and isn't overwhelmingly load (small OC, mined on)
Amd Firepro S7000 -AS IS- $80 beast of a workstation card and fairly rare it overclocked higher then any comparable chip I own. I believe I have pinpointed the issue (check pics) but I dont have the time or supplies to fix it once again sold as-is no returns I can go more in depth on request.
MSI Eclipse Plus X58 LGA 1366 motherboard- pending (not much to say grab a nice cpu and oc it :D )
now for the 64bit phone case+a phone the case has a Jetway PICO NP93-2930 computer with a intel N2930 quad core 1.83 ghz cpu. it also has 2 gigs ddr3 ram and a 128 gig msata ssd. Additionally, it has a voltage converter and a lipoly low voltage cut-off with cuttof it opperates from 12.5v ish to 11v will include 1000 mah 3 cell lipo. the phone is a Chinese generic android. Im only selling this because I switched to a 64 bit zenfone 2 for the sake of portability but honestly this ran windows WAY better then the zenfone does. has 2012 server on it atm. feel free to ask away. -$200
no post craping on this item unless you can find a cheaper one online
EVGA SR-X Motherboard -$675 or $750 with dual e5 2670's
Pricing this one is abit on the difficult side but i figured i would start here and go from their. This is a BEAST of a motherboard supports dual socket 2011 cpus and is the only mobo for this socket that will let you overclock them (bclk oc) I currently run dual e5-2670's on it and it handles every task i throw at it with flying colors. I have tested it with MANY operating systems including, 2008, 2008 R2, 2012 R2, win 10, ESXI 6.0 (majority of time), and Proxmox (basic testing) all of which it was COMPLETELY stable. However, this motherboard does have some damage in both of the sockets. socket 0 is missing 3 pins all of witch are redundant I believe they are all grounding pins. socket 1 is missing about 5 and some of those are redundent but some of them are related to dimm 4. dimm 4 of socket one does not work leaving you with only 11 out of the 12 dimms. This is the only damage that effects the functionality of the mobo the only other "damage" is VERY small and in no way effects the preformance or look of the mobo. Currently this is the only on I could find for sale anywhere and figured i would put it on the market in case anyone was interested. This is used in my daily rig and i use it for everything from virtualization to CAD and gaming with zero issues.
EMC 200GB ENTERPRISE 2.5" SSD HUSSL4020ASS600- $150 each
would like to keep until i sell the sr-x as its a important part of my main rig.
DDR3 ECC reg ram (most are 1333 mhz)
2gb-$7 each
4gb-$10 each
8gb-$15 each
Xeon L5520 socket 1366-$5 each
-----local only-----
vizio m321i a2 monitosmart tv- $150 (1080p 120hz 32 inch this is the second one I have I currently use and enjoy the one on my main rig but I dont need 2 32 inch screens)
lg 920p monitor-$40 (details on request)
dell r900 server-$140 (4p 2.8ghz? 64 gigs ram additional details on request)( i also have another one missing cpu's raid controller a few fans and one of the two psu with only 48 gigs of ram i will let go for $80)
2x Cisco Pwr-rps2300 Redundant Power system-$40 each $60 for two (each includes 2 1150 watt power supplys)
?dell 2850?-$30 (sitting along time failed raid sold as is because of that)
corsair cx 550m-$40
corsair ax 750-$60
some pics-http://imgur.com/a/Cuwda ---sold--- 2x evga gtx 980ti-sold NIB Intel 5820k-sold gigabyte gtx 960-sold EVGA gtx 750 ti-sold asus gtx 770-sold r9 280x-sold r9 280-sold hd 7970-sold hd 7950-sold zotac gtx 980ti-sold 1 vizio m321i a2 monitor-sold Some BTC-sold
well I got some stuff to sell, shipping included unless local only (80023 broomfield co), prices obo but I may not budge much depending on the item. -----wanted----- paypal local cash bitcoin, ether, zcash -----will only consider if it is a trade or amazing deal as my budget is short till i sell more----- RX 480 RX 470 r9 290(x) r9 390(x) fury(x) 295 x2 pro duo other computer related stuff. -----items-----
2x evga gtx 980ti- sold for 600
ASUS HD 7850- $65 (never oc'ed light mining)(have a second one that has no display and a slight fan rattle that works for crossfire or mining -$45) R9 270x- $75 replaced fan with 80mm delta. stays extremely cool and isn't overwhelmingly load (small OC, mined on) Amd Firepro S7000 -AS IS- $80 beast of a workstation card and fairly rare it overclocked higher then any comparable chip I own. I believe I have pinpointed the issue (check pics) but I dont have the time or supplies to fix it once again sold as-is no returns I can go more in depth on request. MSI Eclipse Plus X58 LGA 1366 motherboard- $120 (not much to say grab a nice cpu and oc it :D ) now for the 64bit phone case+a phone the case has a Jetway PICO NP93-2930 computer with a intel N2930 quad core 1.83 ghz cpu. it also has 2 gigs ddr3 ram and a 128 gig msata ssd. Additionally, it has a voltage converter and a lipoly low voltage cut-off with cuttof it opperates from 12.5v ish to 11v will include 1000 mah 3 cell lipo. the phone is a Chinese generic android. Im only selling this because I switched to a 64 bit zenfone 2 for the sake of portability but honestly this ran windows WAY better then the zenfone does. has 2012 server on it atm. feel free to ask away. -$200 -----local only----- vizio m321i a2 monitosmart tv- $150 (1080p 120hz 32 inch this is the second one I have I currently use and enjoy the one on my main rig but I dont need 2 32 inch screens) lg 920p monitor-$40 (details on request) dell r900 server-$140 (4p 2.8ghz? 64 gigs ram additional details on request)( i also have another one missing cpu's raid controller a few fans and one of the two psu with only 48 gigs of ram i will let go for $80) 2x Cisco Pwr-rps2300 Redundant Power system-$40 each $60 for two (each includes 2 1150 watt power supplys) ?dell 2850?-$30 (sitting along time failed raid sold as is because of that) corsair cx 550m-$40 corsair ax 750-$60 some pics-http://imgur.com/a/uRQ8Z ---sold--- 2x evga gtx 980ti-sold NIB Intel 5820k-sold gigabyte gtx 960-sold EVGA gtx 750 ti-sold asus gtx 770-sold r9 280x-sold r9 280-sold hd 7970-sold hd 7950-sold zotac gtx 980ti-sold 1 vizio m321i a2 monitor-sold Some BTC-sold
EDIT: Everyone, I totally f'd up on GPU's that I would have by end of June. I just wrote a quick VBS script that shows I'll only have 22 (15+7) by end of June. Not too shabby, but definitely not 48. Just wanted to post an update. Feel free to use the script! So I've posted here a few times in the past. Now I'll detail what I'm doing a little further and try to help others. Right now I'm working with 5x 7950's, 3x 7850's, a 6750, and 3x GTX 580's (my gaming rig). My hash rate is about 4,500 MH/s. I started this project using the DRIP (http://en.wikipedia.org/wiki/Dividend_reinvestment_plan) principles in mind. I call this MRIP (Mining Reinvestment Plan). The plan is to reinvest all bitcoins mined into more mining hardware. Today I just purchased two more 7950's that are due to arrive tomorrow. Note that these two cards were purchased with bitcoins that were mined. This should bring my hash rate up to about 5660 MH/s, which will let me purchase another card next monday. The plan is every time I have enough to buy another card, I withdraw the bitcoins and convert it into cash. At this rate I'm hoping to have about 48 additional 7950 cards by the end of June or about 33,000 MH/s (33GH/s). To those I haven't gotten back with about hardware that I'm ordering, I do apologize. I'm using ported 7950's. I STRESS ported cards (ported on top, other on bottom) because they throw the heat out of the chassis. When clustering 12 cases together (4x12=48 cards) it's not ideal to "just leave the side off and hope it's cool it enough". These cases will be slammed up against each other. Going to back to hardware, I still haven't decided on a locked feature set - meaning I don't know what I'm going to buy (mobo, ram, cpu, psu, etc). Ideally I want to keep the core system down to about $70/PCI-e slot, but I have to factor in space (hashing density too). I say this because hardware pricing is always changing, but I want to lock the specs down eventually because it'll be easy to administer. Having 12 like systems will be easier to deploy than 12 totally different systems (all I have to do is image them). Being a net/sys admin I'll probably administer them with a PXE boot image (which I plan on making that publicly available along with the system specs). Anyways I apologize about that. I run an IT consulting company on the side and thus I have A CRAP LOAD of old machines with a working PCI-e slot (or two or three). I'll be using these up and then will start building out a system. Going back to mining, I'm not sure what ASIC's have in store for us. The difficulty could rise so much that by end of June I only have 4 more GPUs instead of 48. My hope is that the difficulty will not go up that high as ASIC's are still very hard to come by and really don't make a good investment case right now (or then). Looking at the difficulty graphs, TH/s seem to be leveling off in the near future - but only time will tell! Let me know if this helps! FYI I have put $0 into this so far, as I've been using old hand-me-down GPU's... Edit: You all are more than welcome to check out my mining stats! UltraSPARC_1 = 4x 7950's UltraSPARC_2 = 1x 7950 UltraSPARC_3 = 6750 UltraSPARC_4/5/7 = 7850 UltraSPARC_6 = 3x GTX 580 UltraSPARC_8 = 2x 7950 EDIT 2: A lot of you have mentioned why not buy an ASIC or aren't you afraid the difficulty will skyrocket?! I just don't see that happening soon, and this post makes my case quite nicely. They're even assuming that Butterfly Labs will start shipping in quantity lol Edit 3: UltraSPARC_8 is online! Two more 7950's, woohoo! I'll post some pictures soon. Pictures! YAY! For reference please see HERE
well I got some stuff to sell, shipping included unless local only (80023 broomfield co), prices obo but I may not budge much depending on the item. Bitcoin preferred. Minimum order $40. -----wanted----- paypal local cash bitcoin, ether, zcash -----will only consider if it is a trade or grate deal as my budget is short till I sell more----- RX 480 RX 470 r9 290(x) r9 390(x) fury(x) 295 x2 pro duo other computer related stuff. -----items-----
ASUS HD 7850- $65 (never oc'ed light mining)
R9 270x- $75 replaced fan with 80mm delta. stays extremely cool and isn't overwhelmingly load (small OC, mined on)
Amd Firepro S7000 -AS IS- $80 beast of a workstation card and fairly rare it overclocked higher then any comparable chip I own. I believe I have pinpointed the issue (check pics) but I dont have the time or supplies to fix it once again sold as-is no returns I can go more in depth on request.
now for the 64bit phone case+a phone the case has a Jetway PICO NP93-2930 computer with a intel N2930 quad core 1.83 ghz cpu. it also has 2 gigs ddr3 ram and a 128 gig msata ssd. Additionally, it has a voltage converter and a lipoly low voltage cut-off with cuttof it opperates from 12.5v ish to 11v will include 1000 mah 3 cell lipo. the phone is a Chinese generic android. Im only selling this because I switched to a 64 bit zenfone 2 for the sake of portability but honestly this ran windows WAY better then the zenfone does. has 2012 server on it atm. feel free to ask away. -$200
no post craping on this item unless you can find a cheaper one online
EVGA SR-X Motherboard -$675 or $750 with dual e5 2670's
Pricing this one is abit on the difficult side but i figured i would start here and go from their. This is a BEAST of a motherboard supports dual socket 2011 cpus and is the only mobo for this socket that will let you overclock them (bclk oc) I currently run dual e5-2670's on it and it handles every task i throw at it with flying colors. I have tested it with MANY operating systems including, 2008, 2008 R2, 2012 R2, win 10, ESXI 6.0 (majority of time), and Proxmox (basic testing) all of which it was COMPLETELY stable. However, this motherboard does have some damage in both of the sockets. socket 0 is missing 3 pins all of witch are redundant I believe they are all grounding pins. socket 1 is missing about 5 and some of those are redundent but some of them are related to dimm 4. dimm 4 of socket one does not work leaving you with only 11 out of the 12 dimms. This is the only damage that effects the functionality of the mobo the only other "damage" is VERY small and in no way effects the preformance or look of the mobo. Currently this is the only on I could find for sale anywhere and figured i would put it on the market in case anyone was interested. This is used in my daily rig and i use it for everything from virtualization to CAD and gaming with zero issues.
EMC 200GB ENTERPRISE 2.5" SSD HUSSL4020ASS600- $150 each
would like to keep until i sell the sr-x as its a important part of my main rig.
DDR3 ECC reg ram (most are 1333 mhz)
2gb-$7 each
4gb-$10 each
8gb-$15 each
Xeon L5520 socket 1366-$5 each
-----local only-----
vizio m321i a2 monitosmart tv- $150 (1080p 120hz 32 inch this is the second one I have I currently use and enjoy the one on my main rig but I dont need 2 32 inch screens)
lg 920p monitor-$40 (details on request)
dell r900 server-$140 (4p 2.8ghz? 64 gigs ram additional details on request)( i also have another one missing cpu's raid controller a few fans and one of the two psu with only 48 gigs of ram i will let go for $80)
2x Cisco Pwr-rps2300 Redundant Power system-$40 each $60 for two (each includes 2 1150 watt power supplys)
?dell 2850?-$30 (sitting along time failed raid sold as is because of that)
corsair cx 550m-$40
corsair ax 750-$60
some pics-http://imgur.com/a/Cuwda ---sold--- MSI Eclipse Plus X58 LGA 1366 motherboard- sold 1x 7850-sold 2x evga gtx 980ti-sold NIB Intel 5820k-sold gigabyte gtx 960-sold EVGA gtx 750 ti-sold asus gtx 770-sold r9 280x-sold r9 280-sold hd 7970-sold hd 7950-sold zotac gtx 980ti-sold 1 vizio m321i a2 monitor-sold Some BTC-sold
[USA-NV][H] Computer part-out: i7-3930k, mobo, watercooling parts, and more [W] Paypal
I recently downsized my build so I am parting out my old build and selling off some of the hardware I have been hoarding over the years. The CPU/motherboard and watercooling components were run for ~2.5 years without any issues. Temps were not amazing but were good (CPU Temp around 40C idle and ~65C peak). All prices include shipping and fees if purchasing $20 or more. Main Components:timestamps $275 - i7-3930K (was run with minor overclock, boost at ~4.2 GHz, with stock voltages [or very close to stock] ) was watercooled the whole time with CPU Temp around 40C idle and ~65C peak. $200 - Asus Rampage Extreme IV motherboard. $110 - Sapphire Dual X 7970 - was used for bitcoin mining for a few months, minor overclock @ stock voltages. Ran in my personal computer for almost 2 years after without issues. sold to ImSoRude for $100 $150 - seasonic x1250 Gold modular psu. (24 pin, 2x 8-pin EPS, and 6x 8-pin PCI-e cables were custom sleeved in white and black, look good but aren’t perfect, especially on the psu end). 4x $15 - G.Skill Sniper 4GB RAM (DDR3 1866) sold to Gundly for $60 total Water-Cooling Components:timestamps$50 - EK Supremacy universal CPU waterblock, nickel+acetal. link sold to Promackid for $50 3x $20 - EK Universal GPU waterblock (acetal & nickel Bridge edition) link $15 - EK 3x parallel gpu bridge (will throw in if for free you buy all three gpu waterblocks). $55 - AlphaCool ST30 360 radiator link sold to Promackid for $50 2x $65 - Alphacool ST30 480 radiator link 14x $4 - ½” x ¾” compression fitting (primochill ghost, black chrome) link 4x $6 - G1/4 right angle adapter (bistpower, black chrome) link Accessories:timestamps $40 - LG blueray burner (used less than 10 times ever). link $40 - Leap motion controller $20 - bitfenix recon fan controller. $3 - G1/4 plug temperature sensor. sold to Gundly 4x3x $4 - 8-pack stick on ram heat sinks 1 sold to tastycatpuke for $4, 3 sold to alexsgocart for $13 Fans:timestamps2x 1x $15 - 140mm Noctua NF-A15 PWM (only used for ~2 months) 1 sold to MandrewDavis for $15 $10 - 140mm Corsair Quiet AF140 PWM (only white ring) [used for ~6 months] 8x $5 - 120mm Bitfenix Spectre PWM Fan (4 white and 4 black) link sold to tastycatpuk 8x $3 - 120mm Misc case fans (mostly base model fans from corsair, fractal, and cooler master). Returns/DOA-guarantee: If you have compatibility or other issues with the item I will accept returns within 7-Days of buyer’s receipt of the item (buyer pays return shipping). If the item is DOA and I am notified within a reasonable amount of time, I will follow the sub-reddit guidelines and split the return shipping. edit: don't know why I called them watermarks, not timestamps edit 2: Dropped the price on cpu and motherboard, looked at going rate on ebay and it is less than I thought when I first picked the price.
Get my mining rig to boot, I'll pay you +$30 in bitcoin right now!
Whoever get's my mining rig to boot up and get mining properly, will be sent +$30 in bitcoin instantly from my coinbase account. I have bitcoin ready to be sent as soon as my system is up and running. Please take a look at the info below and reply with a solution! First person to fix my rig will be sent the bitcoin! The setup: MOBO: ASRock Fatal1ty Z87 Killer LGA 1150 Intel Z87 CPU:Intel Pentium G3220 Haswell 3.0GHz LGA 1150 PSUs: 2x EVGA SuperNOVA 1000 G2 80 PLUS GOLD Certified 1000W GPUs: 2x SAPPHIRE 11197-03-CPO Radeon HD 7970 3GB 3x GIGABYTE GV-R928XOC-3GD REV2 Radeon R9 280X 3GB Memory: 2x 4GB DDR3 1600mhz Corsair Vengence Other: 16x and 1x molex powered risers, add2psu adapter I have three gigabyte windforce gpu's and two sapphire 7970 cards. For some reason I cannot get my rig to boot with 4 gpu's or more. I got my rig to boot into win8.1 a day ago with 4 gpu's but after restarting it, It refused to post again. I have risers on all the slots and have tried configurations with the gpu's in different slots. I have jumped the A1 and B17 pins on two of the 1x pci-e slots (last two 1x slots furthest from the cpu) and jumped the A1 and B81 pins on three 16x pci-e slots. I've tried configs with two 280x gpu's on 16x risers and with two 7970 gpu's on 1x risers. I've also tried three 280x gpu's on 16x risers and one 7970 gpu on a 1x riser. I've tried many similar configs but I have had little to no luck. Im using dual psu's with the add2psu adapter. They're the same evga 1000w psu's. All the risers are powered too. And I do receive 5 beeps as an error code through the mobo speaker when I try to boot sometimes. If not, the fans just get loud and the system never boots. All the graphics cards are plugged into the primary psu and so are all the molex cables powering the gpu risers. The second psu only has a single 24 pin cable being plugged into the add2psu adapter. Working solutions will be rewarded! Thanks :D -Ted
Hey guys, so I'm just starting mining eth (I mined bitcoins back with 5870s, but I haven't done anything since that), and I'm trying to figure out current hash rates. I have 2x 7970s in the current rig and am only getting 12mhs a piece using claymore on win 7 while everything I have seen online is saying around 20 mhs for them. I have found this may be due to the increased dag size (though I have 3gb a card, so I'm not sure). Is this expected? If it is, what are current expected hash rates per (popular) card after the day increase?
this is the very basic for latecomer always doesn't understand. i keep seeing they insist on mining bitcoin with SHA256 ASIC, i know its fun, its fun to see you generate money out of thin air, but thats not how we do it today because SHA256 ASIC era are gone, its very expensive playing field right now, if you insist want to mine some bitcoin, you should start mining using GPU! why? lets calculate profitability of your SHA256 ASIC, and lets make it really easy by assuming some factor :
you have free electricty
your ASIC does not consume electricity
your ASIC shipping cost is free
you have ASIC right now in hour hand
you bought ASIC for 1BTC price (for this example, i will use ASICMiner Cube 38GH/s which price is 1BTC right now)
now go here you will see you will get 1 BTC in about 75 days right now (see the 2nd column from the rightmost), this value is not correct since it does not account for difficulty increase within 75 days, bitcoin difficulty are increasing about 35% in 2 weeks, thats about 70% per month, you will see the correct calculation is here which you will never get 1BTC within a year, and after 6 months your ASIC doesn't generate bitcoin anymore now lets compare it to GPU miner for Scrypt mining, which i use realistic assumption here
you dont have free electricity, you will pay 0.1$/KWH
your GPU rig consume constant max amount of electricity that it need 24/7
your GPU rig come with shipping cost
you have GPU rig in your hand right now
you bought GPU rig for 1 BTC ( its about 1000$, for this example i will use 2x AMD R9 280X which cost 800$ and will produce 1.6MH/s with cost about 750W/h )
now go here, you will see that on the most profitable coin (first row) you will get 1 bitcoin for about 30 days (its 45 days faster than SHA256 ASIC), how about difficulty increase within these period, this factor is not as scary as bitcoin, lets see difficulty chart for LTC here, you will see that the diff is up and down, by calculating the data history for 1 year, you will get that LTC difficulty increase is about 3% per month on average (this is 25x smaller than bitcoin difficulty change rate), so coinwarz data is not too much way off here by not take into account of difficulty increase TL;DR;
you get 3500% more profit mining scrypt altcoins using GPU than mining bitcoin using SHA256 ASIC, for same price of hardware.
mining using GPU are less risk because you can buy GPU rig anytime, anywhere, no pre-order.
you get 1BTC in 30 days for mining altcoin with GPU, compared to 300+ days for mining bitcoin with ASIC
note: this calculation are made in worst case scenario for GPU compared to best case scenario for bitcoin ASIC thats just prediction and calculation, things will go wrong right? lets see the report from my own GPU mining rigs here, see 2nd sheet (RIG1-Report), this is my earning report day to day in BTC (already running since december 2013), my rigs cost about 2000$ (this is 2nd hand 6x AMD 7970 for 4.2MH/s) and will ROI within 50 days from start if my calculation are correct
Resurrected my old Bitcoin rig for some dedicated LTC mining, FINALLY got it running stable after some serious procrastination studying for finals -__- Evidence!: http://imgur.com/a/K3nYt GPUs: 2x XFX Radeon HD 7970 GHz Edition (FX797GTDFC) flashed with this Gigabyte BIOS - http://www.techpowerup.com/vgabios/127156/gigabytehd7970-3072-120905.html cgminer config: http://pastebin.com/raw.php?i=s072rzFF Don't listen to anyone who says XFX GPUs are junk; maybe their firmware is, I won't argue that... but using the Gigabyte BIOS above I was able raise my hash rate to ~700 on each card @ 1000/1375 using around 450 watts, vs. ~550 on each card @ 1200/1500 using around 650 watts on the stock firmware!
I took the plunge - 2x 7970's on their way for potential rig - I have no idea what I'm doing - Help appreciated!
So since this past Spring break, my brother in his all powerful insider knowledge on this strange thing named BitCoins introduced me to this bandwagon. I've since joined in and bought all I could muster with the funds in my bank without ruining myself and have thus far reaped a beautiful profit that my wife deems pleasant. This is, of course, something EXTRAORDINARY. Ahem. So I decided to wager my trust I've earned with her with said investment, and have decided to use a few more funds to build a mini miner. Obviously this won't be the mega tank that you see all over Youtube, Just a simple machine that may have the potential of 1.6GH/s is my hope. So this is what I've bought so far:
Total thus far after Rebates & Selling Games: ~$1300 USD Estimated 1.6GH/s with profits beginning in ~85 days (Before crash, of course XD - Now who knows!) Great thing is if all this goes kaput, I'll at least be able to resell it all! :D I have a monitor around for initial setup, and all the other obvious peripherals. What I am in need of are some tips or links in setting these 2 guys up. I'm somewhat new to Building a PCI-E Rig, but I'm sure its just as simple as plugging it all in, which I've done countless times before. I know that if I'm on Linux I won't need any dummy plugs for the DVI outputs on the other cards for it to be recognized by the OS. Can it be run purely all on a USB drive? That's one thing I'm a little unsure of. Mostly my questions consist of:
Physical Setup, if there's anything special about it all. Obviously I'll need some cooling going on. Would fan-cooling be sufficient? Or should I look into Watercooling? All I know is that if I do watercooling, I'll have to get specific water blocks for my cards.. But where to get them?
Any particular settings while using the miner program on linux to max out the performance on my 2x 7970's and 3x 7770's
Do you gain parts of bitcoins when you SoloMine, like you do in pooled mining? Or do you only reap a benefit when you hit a block of 25 bitcoins?
I don't care much for people bantering about how difficult it is now to mine, or how ineffective this might be, I've read my share about that. I plan on just having this run in the corner of my little apartment for a few months while I go to school/work/walk the dog/etc... I would like tips or any insider info on other fellow 7970'ers on how to maximize my performance with these two cards at my disposal. And of course those who do help me in my time of need and once it's all beautiful and vampiric-sparkly like will get Brownie Points in the afterlife. Last computer I built was back in 2004 so that I could play Half Life 2. And I was on a budget back then too. So I'm not too savvy with all this new cooling hardware and techniques as I've never had to deal with things that exceeded 4x AGP. I'll post pictures and videos of all the fun I have with this adventure :D Update Thus far I have only received my two 7970's and boy do they look beastly. I've never held a card that manly before. 2nd Update Everything came in! Goodness it's difficult to do a headless Linux Box! for sake of time, I think I'm just going to buy a cheap sata harddrive. 3rd Update So here's the final photo of it running with 2xx7970's I'm still waiting for the riser cables to come in to mount the other 3 cards. I haven't uploaded the videos of me building it all just yet (btw I sucked at putting it all together XD)
I'm new to mining. How long will I take to break even?
With 2x 7970 & 1x 280x on my rig, how long will I take to make US$1500 (or 2 Bitcoin) worth by mining scrypt altcoins, and mining what coin? I heard of Coinwarz but still can't figure out how to calculate my profitability. Help! Any rough estimation will be good to get me started. Thanks!
Hi, I had been mining bitcoin as a hobby while block erupters were still profitable. Now I have an interest in litecoin I have seen a lot of posts about people optimizing their mining and cgminer in general. I have been using Guiminer scrypt and I feel like I am not squeezing as much performance as I could. I have no idea how to set up cgminer and it confuses me even more when I have to setup different model cards in a single rig. If you guys could help me out get the best performance it would be greatly appreciated. What I currently own and the hash they are creating:
4x 7950s @ 2.1mhs
2x 7870s @ 600khs
2x 7770s @ 300khs
1x 7970 @ 600khs
1x 7850 @ 350khs
which is a total of 3.95mhs In the pool I joined it seems that it translates to 1.2LTC estimated earnings per round. [UPDATE] Separated by rigs
So I've been following bitcoin for about a year now and really would like to get into mining before the ASICs hit. I've been considering a 3x 7950 or 2x 7970 rig. Is this a smart move? I have money for the rig available right now but would it be worth it??
Given the recent increased difficulty what is the hashrate on the 7950? How about the 7970?
What is the expected time we have for GPU mining before the ASICS force GPU mining out of the question?
thilanliyan, I guess it depends if you still intend to play videogames should Bitcoin mining collapse. If you do, it still makes sense to trade up HD6950s into a 7950/7970. The single GPU delivers more consistent framerates without micro-stutter and SLI/CF profiles that are necessary to extract maximum value from 2+ GPUs. I run 2x 7970s with a Intel 980X @ 3.7GHZ (Originally a VM Server/Gaming Machine) with 12GB of RAM. All up I flirt with the 1450MH line on BTC and 1400KH with LTC give or take 50. The CPU pops out about 30-40MH on BTC and 50-60KH on LTC. Bitcoin is a distributed, worldwide, decentralized digital money. Bitcoins are issued and managed without any central authority whatsoever: there is no government, company, or bank in charge of Bitcoin. You might be interested in Bitcoin if you like cryptography, distributed peer-to-peer systems, or economics. The second bitcoin halving event occurred in July 2016 (see Chart 2). In that month, bitcoin hovered around $600–700. Starting around December 2016, bitcoin starts to tick higher to almost reach 2x ATI Radeon 7970's in CrossFire ASUS Rampage IV Extreme Mobo Intel LGA 2011 3930k CPU OC to 4.4GHZ @ 1.32v Windows 7x64 Ultimate Ok so here is what i have done so far: 1. Installed Bitcoin application and waited network update 2. registered and created username/password on Bitclockers for my first worker
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