Author Topic: [Guide] Rig Building basics  (Read 15080 times)

Offline Sy

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[Guide] Rig Building basics
« on: December 12, 2013, 10:06:00 AM »
Hello all,
since those topics pop up like shrooms in a healthy forest - here are some basics i've learned in the last month


#1: Don't save on the PSU, i can't stress this enough, this is the single most used piece in your rig, if you see one thats cheaper than the suggested one, don't buy it, quality has its price
#2: Don't ignore #1!
#3: A SSD won't speed up your mining, either go for spare HDDs (i got a ton of 160GB SATA) or Linux on a thumb drive, don't waste money on a SSD
#4: Get the smallest CPU you can find for that socket unless you want to CPU mine aswell (NO GPU COIN) and know what you are doing, no cpu mining on 32 bit (smos / ltcbamt)
#5: Don't mine gpu coins with your cpu...seriously...just don't - i will lock or delete every thread on that topic
#6: Get a watt meter and measure your rig, it will tell you if your psu is sufficent and / or your power draw calculations are correct, 20$...don't think about it, just get one
#7: Intel or AMD Board / CPU doesn't metter, get the one you prefer although Intel tend to re-sell better later on i personally go for AMD since their boards are nice for mining ^^
#8: You don't need 8GB Ram or more, 2 GB is enough for linux (tested with dual 7990) and 4 GB for Windows
#9: There is a reason XFX, Powercoler and some others are usually still available, they might yield the same khs but they usually don't - buy with caution

Offline Sy

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Re: [Guide] Rig Building basics
« Reply #1 on: December 12, 2013, 10:06:14 AM »
Hardware Recommendations

GPU:
Best brands by experience for Mining are MSI, Sapphire and Gigabyte
GPUs recommened are
7950, around 640 khs at 225W
280x, around 730 khs at 300W
and 7970, around 730 khs at 300W
those yield the best khs/$ and watt - they are most likely sold out everywhere right now :D


You can still build rigs with smaller cards like the
7850, 360khs at 150W
7870, dunno the numbers, never owned one, should be pretty close to
270x, ~450 khs afaik at 150W if toms hardware is correct
those are still available and you can power 4 with a 800-850W PSUs which are more or less available too


Mainboards:
Personally i really like the ASRock 970 extreme4, can handle 5 GPUs without any pin shorting


Risers:
Buy them early, they tend to take a long time to deliver...powered or not is a different matter, i never had any problems with the extreme4 and 5 7850, all unpowered, same with 4 7950, can't speak for other boards.


PSU:
The best choise is the Lepa 1600W (mostly unavailable all ofer the world), i've personally used Chieftec Nitro PSUs with different wattage (600 to 1250) which worked quite well
« Last Edit: December 12, 2013, 04:18:32 PM by Sy »

Offline mcscotty89

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Re: [Guide] Rig Building basics
« Reply #2 on: December 12, 2013, 02:15:27 PM »
What PSU do you personally recommend?

Offline Sy

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Re: [Guide] Rig Building basics
« Reply #3 on: December 12, 2013, 04:20:20 PM »
Updated, if you go for big cards, the Lepa 1600W, it has been used for miners all around the world for years now.


Smaller cards a Chieftec Nitro but there are many viable PSUs in the 800-1200W range, just don't go for the cheap ones.


Check if the number of power connectors match with your cards, try to avoid adapters (it's mostly possible, not always ^^) and check the 12v rail layout, i had a psu before with weird rail layout, not delivering enough through its pciE ports.

Offline minexxx

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Re: [Guide] Rig Building basics
« Reply #4 on: December 15, 2013, 02:55:11 PM »
Hardware Recommendations

GPU:
Best brands by experience for Mining are MSI, Sapphire and Gigabyte
GPUs recommened are
7950, around 640 khs at 225W
280x, around 730 khs at 300W
and 7970, around 730 khs at 300W
those yield the best khs/$ and watt - they are most likely sold out everywhere right now :D


You can still build rigs with smaller cards like the
7850, 360khs at 150W
7870, dunno the numbers, never owned one, should be pretty close to
270x, ~450 khs afaik at 150W if toms hardware is correct
those are still available and you can power 4 with a 800-850W PSUs which are more or less available too


Mainboards:
Personally i really like the ASRock 970 extreme4, can handle 5 GPUs without any pin shorting


Risers:
Buy them early, they tend to take a long time to deliver...powered or not is a different matter, i never had any problems with the extreme4 and 5 7850, all unpowered, same with 4 7950, can't speak for other boards.


PSU:
The best choise is the Lepa 1600W (mostly unavailable all ofer the world), i've personally used Chieftec Nitro PSUs with different wattage (600 to 1250) which worked quite well

Why have you totally missed out the 290(x) cards?

Offline fran2k

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Re: [Guide] Rig Building basics
« Reply #5 on: December 15, 2013, 09:10:31 PM »
#4: Get the smallest CPU you can find for that socket unless you want to CPU mine aswell (NO GPU COIN) and know what you are doing, no cpu mining on 32 bit (smos / ltcbamt)

Why cannot use BAMT to CPU mining?

Offline Sy

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Re: [Guide] Rig Building basics
« Reply #6 on: December 16, 2013, 07:15:51 AM »
32 bit mines cpu coins about half as fast as 64 bit, you can use it but it's not advised since you get half the coins for the same power consumption.

Offline Sy

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Re: [Guide] Rig Building basics
« Reply #7 on: December 16, 2013, 07:17:04 AM »
Why have you totally missed out the 290(x) cards?

I've never used any and they are worse in price / khs ratio - they are just attractive right now because they are sort of available...i read many many threads with problematic 290(x) cards.

Offline fran2k

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Re: [Guide] Rig Building basics
« Reply #8 on: December 16, 2013, 12:34:34 PM »
32 bit mines cpu coins about half as fast as 64 bit, you can use it but it's not advised since you get half the coins for the same power consumption.

Damn. I was planning to mine CPU&GPU using the BAMT.

Offline Sy

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Re: [Guide] Rig Building basics
« Reply #9 on: December 16, 2013, 12:40:02 PM »
There is at least one project with a 64 bit debian bamt clone, not sure how far along though...

Offline NixZiZ

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Re: [Guide] Rig Building basics
« Reply #10 on: December 20, 2013, 11:30:01 PM »
I actually find that ASUS cards work well for mining also, just a FYI :)
If you are able to run a 3-slot card MATRIX cards are excellent for mining.

Offline JSabo

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Re: [Guide] Rig Building basics
« Reply #11 on: December 21, 2013, 10:10:47 AM »

#5: Don't mine gpu coins with your cpu...seriously...just don't - i will lock or delete every thread on that topic


Sorry for being a noob, but what do you mean by GPU coins?

Offline NixZiZ

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Re: [Guide] Rig Building basics
« Reply #12 on: December 21, 2013, 02:48:30 PM »

#5: Don't mine gpu coins with your cpu...seriously...just don't - i will lock or delete every thread on that topic


Sorry for being a noob, but what do you mean by GPU coins?

You need to buy a GPU to mine coins profitably. A CPU coin is mined on the much slower, non-profitable CPU.

So if you do not have a GPU you may as well not mine.

Offline matt4054

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Re: [Guide] Rig Building basics
« Reply #13 on: January 08, 2014, 01:22:01 PM »
These 9 rules (considering #1 twice) should be added just one last rule to make in the 10 Commandments of the scrypt miner ;)

I would propose the following:

Quote
Do not use A/C, it will double your electricity bill (and hurt mother nature uselessly for those who care). Instead, use clever air flow design, blow hot air outside, use fresh air intakes where you can, and throttle your GPUs during heat waves, monitor every temperature cautiously and avoid going over the rated maximum.
« Last Edit: January 08, 2014, 01:26:43 PM by matt4054 »

Offline crypto-master

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Re: [Guide] Rig Building basics
« Reply #14 on: April 26, 2014, 03:07:34 PM »
great guide simple and true. I'm a complete noob to mining lol.