cheapest mining rig ever, for script coin?

Amph

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Activity: 3248

Merit: 1070

Quote from: Bulpower on June 08, 2013, 05:44:49 AM

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!

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

what is the ram model of your rig(second one)?

for psu i have found a corsair tx650 bronze, at 84 euro, not bad

mullick

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Activity: 1064

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Quote from: zackclark70 on June 08, 2013, 09:10:02 PM

Quote from: mullick on June 08, 2013, 09:05:28 PM

Quote from: zackclark70 on June 08, 2013, 04:46:07 PM

Quote from: Amph on June 08, 2013, 04:13:30 PM

then, i'm missing something, i'm using this
cgminer --thread-concurrency 24000 --lookup-gap 2 --gpu-powertune 20 -w 256 -I 19 -g

even if i set intensity to 20, i can't get much more than 600

im using reaper so my setings are useless to you

Just curious is there a reason people still use reaper?

with reaper it uses more system ram so you can use lower mem clocks on the card and still get a good hashrate also with reaper i get 30 more kh/ card with lower seting and using less power

Okay I had heard it has networking issues or something along those lines. Prob just fud. Ill give it a try on my 5850's and 6850's thanks!

zackclark70

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Activity: 868

Merit: 1000

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Quote from: mullick on June 08, 2013, 09:05:28 PM

Quote from: zackclark70 on June 08, 2013, 04:46:07 PM

Quote from: Amph on June 08, 2013, 04:13:30 PM

then, i'm missing something, i'm using this
cgminer --thread-concurrency 24000 --lookup-gap 2 --gpu-powertune 20 -w 256 -I 19 -g

even if i set intensity to 20, i can't get much more than 600

im using reaper so my setings are useless to you

Just curious is there a reason people still use reaper?

with reaper it uses more system ram so you can use lower mem clocks on the card and still get a good hashrate also with reaper i get 30 more kh/ card with lower seting and using less power

mullick

legendary

Activity: 1064

Merit: 1002

Quote from: zackclark70 on June 08, 2013, 04:46:07 PM

Quote from: Amph on June 08, 2013, 04:13:30 PM

then, i'm missing something, i'm using this
cgminer --thread-concurrency 24000 --lookup-gap 2 --gpu-powertune 20 -w 256 -I 19 -g

even if i set intensity to 20, i can't get much more than 600

im using reaper so my setings are useless to you

Just curious is there a reason people still use reaper?

zackclark70

legendary

Activity: 868

Merit: 1000

ADT developer

Quote from: Amph on June 08, 2013, 04:13:30 PM

then, i'm missing something, i'm using this
cgminer --thread-concurrency 24000 --lookup-gap 2 --gpu-powertune 20 -w 256 -I 19 -g

even if i set intensity to 20, i can't get much more than 600

im using reaper so my setings are useless to you

Amph

legendary

Activity: 3248

Merit: 1070

yeah sure, pre-order scam overpriced that can't mine scrypt

KSV

sr. member

Activity: 398

Merit: 250

SVERIGES VIRTUELLA VALUTAVÄXLING

get a BFL ASIC Wink

Amph

legendary

Activity: 3248

Merit: 1070

then, i'm missing something, i'm using this
cgminer --thread-concurrency 24000 --lookup-gap 2 --gpu-powertune 20 -w 256 -I 19 -g

even if i set intensity to 20, i can't get much more than 600

zackclark70

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Activity: 868

Merit: 1000

ADT developer

Quote from: Amph on June 08, 2013, 04:07:54 PM

Quote from: aa on June 08, 2013, 03:43:28 PM

Quote from: Amph on June 08, 2013, 08:08:15 AM

yeah but maybe with more rejected, pushing it at the extreme limit isn't worth it

He's using lower values than you, how is he pushing it to the "extreme limit"? Regardless, my 7950s all do over 700Kh/s with an average temp of 72C (for now) @ 1.09v. About 722Kh/s for my 1175 core GPUs.

with more intensity, u get more reject

i have intensaty 20 and get no more rejects than when it was at 16

Amph

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Activity: 3248

Merit: 1070

Quote from: aa on June 08, 2013, 03:43:28 PM

Quote from: Amph on June 08, 2013, 08:08:15 AM

yeah but maybe with more rejected, pushing it at the extreme limit isn't worth it

He's using lower values than you, how is he pushing it to the "extreme limit"? Regardless, my 7950s all do over 700Kh/s with an average temp of 72C (for now) @ 1.09v. About 722Kh/s for my 1175 core GPUs.

with intensity 20, u get more reject and also better hash, but at the end you are not earning any more

can you plaese reveal your setting for such good hashrate?
for 600KH i'm using this
cgminer --thread-concurrency 24000 --lookup-gap 2 --gpu-powertune 20 -w 256 -I 19 -g

zackclark70

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Activity: 868

Merit: 1000

ADT developer

Quote from: aa on June 08, 2013, 03:43:28 PM

Quote from: Amph on June 08, 2013, 08:08:15 AM

yeah but maybe with more rejected, pushing it at the extreme limit isn't worth it

He's using lower values than you, how is he pushing it to the "extreme limit"? Regardless, my 7950s all do over 700Kh/s with an average temp of 72C (for now) @ 1.09v. About 722Kh/s for my 1175 core GPUs.

what setings you using ? i cant go much higher lol 3 cards on a 750w psu im at 700w now lol

aa

hero member

Activity: 544

Merit: 500

Litecoin is right coin

Quote from: Amph on June 08, 2013, 08:08:15 AM

yeah but maybe with more rejected, pushing it at the extreme limit isn't worth it

He's using lower values than you, how is he pushing it to the "extreme limit"? Regardless, my 7950s all do over 700Kh/s with an average temp of 72C (for now) @ 1.09v. About 722Kh/s for my 1175 core GPUs.

zackclark70

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Activity: 868

Merit: 1000

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Quote from: ondratra on June 08, 2013, 02:22:35 PM

surely don't buy HDD if you have motherboard supporting booting from flash!! i have 16GB usb flash disk for very nice price - serious savings

i use a hdd that way if i fails i can still recover the wallet .dat if your solo mining you cant avoid having a walet.dat

ondratra

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Activity: 350

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surely don't buy HDD if you have motherboard supporting booting from flash!! i have 16GB usb flash disk for very nice price - serious savings

Amph

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Activity: 3248

Merit: 1070

yeah but maybe with more rejected, pushing it at the extreme limit isn't worth it

zackclark70

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Activity: 868

Merit: 1000

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Quote from: Amph on June 08, 2013, 08:02:44 AM

yeah yeah, wasn't an e-penis Grin

, just to say that undervolting it make them less watt consuming, so with a good 750, u can even run 3

i only sed it so you know you shoud get 30kh more per card at lower setings than u have

Amph

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Activity: 3248

Merit: 1070

yeah yeah, wasn't an e-penis Grin

, just to say that undervolting it make them less watt consuming, so with a good 750, u can even run 3

zackclark70

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Activity: 868

Merit: 1000

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Quote from: Amph on June 08, 2013, 07:50:12 AM

undervolting is the key

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

i can run my cards at 1050/1250 1.050v and get 630-640kh

Amph

legendary

Activity: 3248

Merit: 1070

undervolting is the key

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

zackclark70

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Activity: 868

Merit: 1000

ADT developer

Quote from: add1ct3dd on June 08, 2013, 07:20:42 AM

Quote from: zackclark70 on June 08, 2013, 06:12:55 AM

Quote from: mm8000 on June 08, 2013, 05:11:50 AM

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

Topic: cheapest mining rig ever, for script coin? (Read 8624 times)