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Author Topic: cheapest mining rig ever, for script coin?  (Read 8570 times)
Amph (OP)
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June 08, 2013, 08:49:47 AM
 #1

i need advice, on a cheapest mining rig with just 2 vga, with no case

MOB: cheapest one, there is anything around 50 euro?
CPU: adm or intel?
RAM: 4 gb
VGA: 2x 7950, gigabyte maybe? or vapor-x?
PSU: a 650w would be enough, tell me the best
HDD: no issue, i have already one

it's possible to stay on 550 euro at max, $750usd
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jeannie
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June 08, 2013, 08:50:57 AM
 #2

Have you calculate, is the worth of electricity etc worth the cost of mining?

Amph (OP)
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June 08, 2013, 08:56:33 AM
 #3

my electricity is $0.17, i think i'm in profit, mining the most profitable alt-coin like dgc, wdc, ecc...
i can make 100 euro at months, so roi 6 months or less
Sondey10mg
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June 08, 2013, 08:59:00 AM
 #4

i need advice, on a cheapest mining rig with just 2 vga, with no case

MOB: cheapest one, there is anything around 50 euro?
CPU: adm or intel?
RAM: 4 gb
VGA: 2x 7950, gigabyte maybe? or vapor-x?
PSU: a 650w would be enough, tell me the best
HDD: no issue, i have already one

it's possible to stay on 550 euro at max, $750usd

2 x 7950 already cost more then 500 euro...
And go for AMD: cheap mobo cheap cpu, good enough performance

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Amph (OP)
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June 08, 2013, 09:00:29 AM
 #5

nah, i can find them used at 200 each
i'm not into amd with the mob and cpu (i have always bought intel), can you suggest me the cheapest one for two vga?
add1ct3dd
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June 08, 2013, 09:08:51 AM
 #6

nah, i can find them used at 200 each

There's still no chance of it being 550 EUR, decent PSU is probably 90 EUR (which you NEED).
Amph (OP)
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June 08, 2013, 09:10:07 AM
 #7

400+90+60(mob+cpu+ram) even used mob, cpu and ram are ok, i don't need them new

if it is still impossible, than 600 at max should be enough
mm8000
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June 08, 2013, 09:11:50 AM
 #8

You want more than a 650 psu for 2x7950.
Amph (OP)
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June 08, 2013, 09:13:19 AM
 #9

2x 7950 undervolted run at 400watt, the other part consume 150 at max, i'm in, i just need a good psu
mullick
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June 08, 2013, 09:17:53 AM
 #10

If power is not a concern 5850's can be bught for $125 us  and get 400khash overclocked

Find a cheap open box am3 or am3+ motherboard at your local store.

single core amd sempron

cheap ram and a good power supply

with 3 5850's 1.2mh and all together can be had for 575 us dollars
$50 motheboard
$30 cpu
$20 ram
$100 power supply
3x 5850 at $125 =375
Total = 575 say 600 for shipping ect.

EDIT: actually they consume 175watts each so not bad on power either
Sondey10mg
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June 08, 2013, 09:18:21 AM
 #11

Look at the am3/am3+ motherboards here. search for one with the features you want => search ebay etc for used ones
http://www.asrock.com/mb/index.asp

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mullick
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June 08, 2013, 09:24:05 AM
Last edit: June 08, 2013, 10:07:01 AM by mullick
 #12

The 5000 series are strange cards. My 6850 maxes at 275kh it doesnt care wether the memory clock is 700mhz or 1200 mhz still 275kh. My 5850's run at 400khash at 975 core and 1175 memory. If I change one up or down without the other i actually loose hashrate. My 5850's blow the 6850 out of the water. I know the numbering system was differant back then. I think a 5850 is comparable to a 7950
Amph (OP)
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June 08, 2013, 09:26:40 AM
 #13

If power is not a concern 5850's can be bught for $125 us  and get 400khash overclocked

Find a cheap open box am3 or am3+ motherboard at your local store.

single core amd sempron

cheap ram and a good power supply

with 3 5850's 1.2mh and all together can be had for 575 us dollars
$50 motheboard
$30 cpu
$20 ram
$100 power supply
3x 5850 at $125 =375
Total = 575 say 600 for shipping ect.

EDIT: actually they consume 175watts each so not bad on power either
aren't 2x7950 better?
they run at 600 each and wattage is 200-225 max
Bulpower
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June 08, 2013, 09:44:49 AM
Last edit: June 08, 2013, 09:57:39 AM by Bulpower
 #14

You can try 3 x ATI 7850, they cost less  and spent less power...

MB   GB H61M-DS2V - 51$
CPU Intel G1610 - 45$
HDD no matter - 55$
RAM 2GB DDR3 - 18$
PSU SS 620W bronze - 85$
3x ATI 7850 1GB DDR5 - 3x175$
_____________________
Prices are in Bulgaria! Smiley

This system will spent less than 450 wats under hard overclock...and will give you 1200 kh/s

VGA: core 1100/ memory 1400
Miner: tread concurrency 8-9000, worksize 256, agression 19
_______________________________
390-400 kh/s single card

______________________________________________
My rigs:

MB Asrock B75 Pro 3
CPU Intel G1610
HDD 500 GB Seagate SATA3
RAM 4GB DDR3
PSU SS 750W Bronze
3x ATI 7950 Powercolor
----------------------------------------------------------------------
750 wats, 600-610 kh/s single card

https://bitcointalk.org/index.php?topic=215844.0
LTC: LeN7gcMUaZRX37CVeaSK3QoTx7F2SSGh1B
BTC: 1KsU891q2m3FteARrYtcDM1b8ZZcWWqKd9
mullick
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June 08, 2013, 09:51:36 AM
Last edit: June 08, 2013, 10:05:39 AM by mullick
 #15

If power is not a concern 5850's can be bught for $125 us  and get 400khash overclocked

Find a cheap open box am3 or am3+ motherboard at your local store.

single core amd sempron

cheap ram and a good power supply

with 3 5850's 1.2mh and all together can be had for 575 us dollars
$50 motheboard
$30 cpu
$20 ram
$100 power supply
3x 5850 at $125 =375
Total = 575 say 600 for shipping ect.

EDIT: actually they consume 175watts each so not bad on power either
aren't 2x7950 better?
they run at 600 each and wattage is 200-225 max

Yes they are better but can you get 2 x 7950's for $375?

Your basically looking at $100 vs 100watts

100 watts = 40 cents a day .40 x30 = $12 a month so about 9 months until the 7950 pays for the extra $100 price
Amph (OP)
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June 08, 2013, 10:08:57 AM
 #16

oh right, but i prefer 7950 for density

You can try 3 x ATI 7850, they cost less  and spent less power...

MB   GB H61M-DS2V - 51$
CPU Intel G1610 - 45$
HDD no matter - 55$
RAM 2GB DDR3 - 18$
PSU SS 620W bronze - 85$
3x ATI 7850 1GB DDR5 - 3x175$
_____________________
Prices are in Bulgaria! Smiley

This system will spent less than 450 wats under hard overclock...and will give you 1200 kh/s

VGA: core 1100/ memory 1400
Miner: tread concurrency 8-9000, worksize 256, agression 19
_______________________________
390-400 kh/s single card

______________________________________________
My rigs:

MB Asrock B75 Pro 3
CPU Intel G1610
HDD 500 GB Seagate SATA3
RAM 4GB DDR3
PSU SS 750W Bronze
3x ATI 7950 Powercolor
----------------------------------------------------------------------
750 wats, 600-610 kh/s single card
why everyone say that amd is better for those cheap rig?
zackclark70
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June 08, 2013, 10:12:55 AM
 #17

You want more than a 650 psu for 2x7950.


you can run 3 on a 750 so 650 will be fine for 2 cards

                                                                                                                                           cost
i would say look on ebay find a cheap motherboard with 2 pcie  slots  am2                                50    
get 2 7950 vaporx oc edition ( dual bios ) i know there more mony but thay are beter cards       490
cheap am2 cpu                                                                                                                     20
4gb ram                                                                                                                               20
psu hx 750  used                                                                                                                  70
cheap hdd                                                                                                                            10  
                                                                                                                                  total 660
    

add1ct3dd
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June 08, 2013, 11:20:42 AM
 #18

You want more than a 650 psu for 2x7950.


you can run 3 on a 750 so 650 will be fine for 2 cards

                                                                                                                                           cost
i would say look on ebay find a cheap motherboard with 2 pcie  slots  am2                                50    
get 2 7950 vaporx oc edition ( dual bios ) i know there more mony but thay are beter cards       490
cheap am2 cpu                                                                                                                     20
4gb ram                                                                                                                               20
psu hx 750  used                                                                                                                  70
cheap hdd                                                                                                                            10  
                                                                                                                                  total 660
    

You can't run 3 safely OR efficiently on a 750W, please learn what you are talking about before speaking.
zackclark70
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June 08, 2013, 11:26:56 AM
 #19

You want more than a 650 psu for 2x7950.


you can run 3 on a 750 so 650 will be fine for 2 cards

                                                                                                                                           cost
i would say look on ebay find a cheap motherboard with 2 pcie  slots  am2                                50    
get 2 7950 vaporx oc edition ( dual bios ) i know there more mony but thay are beter cards       490
cheap am2 cpu                                                                                                                     20
4gb ram                                                                                                                               20
psu hx 750  used                                                                                                                  70
cheap hdd                                                                                                                            10  
                                                                                                                                  total 660
    

You can't run 3 safely OR efficiently on a 750W, please learn what you are talking about before speaking.


i have a hx750 psu runing 3 7950s puling 700w from the wall ( has been running 57 days 24/7 ) psu is not even warm the hx series is very good

edit 750w at 90% efficiency  so the rig is only using 675w and psu 75w

Amph (OP)
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June 08, 2013, 11:50:12 AM
 #20

undervolting is the key

now i have only 1 7950 that run at 1100/1250, 1050vcore stable, 600khashrate
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