Topic: Custom hardware setup for scrypt mining. (Read 1011 times)

I'm a electronic engineering major, I kinda know what I'm doing. 110 to 125V @ 15A is 1650W to 1875W, you cant have a power supply bigger than that on one outlet or the fuse will blow. its best to stay around 70% of max power per outlet to be safe. So, 1155W-min to 1312.5W-max power supply should be good per outlet. This is to keep the intensity down on the outlet so there is no fire hazard.

Also power supplies draw +/- 20% of what it says it does. 500W power supply is really any where between 400W to 600W

Make sure you get a Kill-A-Watt meter if you don't already have one!
http://www.p3international.com/products/p4400.html

the only thing I'm really concerned about is blowing a fuse with that much power running. I may have to limit it to three or four cards per system. That's not as bad as 1500W sitting on one outlet.

all that matters motherboard wise is quality and number of pic-e x16 and pci-e x1, you can get a decent quality motherboard for around $130USD with  3xPCI-e x16 and 3xPCI-e x1 which will let you hook a total of 6 gpu's up to it.

This would also help reduce costs as you would only need one system to run all 6 cards. Get some decent 280x's and plug them in and you have 4500Kh/s rig

That is what I said, a low cost CPU would be best, and I do not mine script with CPU as the Electrical cost vs kh/s you would get puts you in the negative profit wise.
Best just to get a low wattage cpu to keep electrical down.

very cool, thank you. I like ASUS and Intel brands myself, I ran my 423 chipset for 14 years the motherboard resently died. 

You might find this useful in figuring out what hardware to buy.

https://litecoin.info/Mining_hardware_comparison

if CPU dont matter, you could get away with a Celeron. I suppose the biggest challenge is finding a good motherboard.

CPU / RAM dosent really matter, u can do just fine with a I3 and 4 GB RAM

very cool, I built this system not knowing anything about mining, I resently found out about bitcoins around may 2013. Then July I found out about LTC. This is my upgrade from my old 423 chipset I did have. I'd like to deicate it all to new technology since the 7770 is an older model. currently that is all I have but I will post what parts are reachable cost. spending $1000 on just a CPU is just silly, unless you have serious plans for it. the higher end CPUs are a little better for mining, but the GPUs out proportion the CPUs I will agree with that. I want the entire system to mine without overclock and too much stress. My CPU runs at 70% with the mining which leaves plenty of room to do other things.

I personally do not mine script with a cpu as script is more efficient on GPU, unless you are talking about scrypt-jane which is totally different.

I mine litecoin and other scrypt based alt coins, I am using a z77MB with 3 PCI-ex16 slots and 3 PCI-e x1 slots. I have 2 280x cards, 1 7870 card and 1 7770 card running script. one 280x gets 705Kh/s, the second a Sapphire toxic does 765Kh/s,  7870 gets 395Kh/s and the 7770 attached to the PCI-e x1 slot through cable gets 175Kh/s for a total of 2040Kh/s. I have two psu's wired up to the system, an 850 bronze and a 650 gold, for a total of 1500watts worth of supply, as far as system components go cpu and memory these do not need to be high end or anything, it is better to have a low wattage cpu and around 4GB of ram. My system however has a 3570K and a 16GB of Cosair vengenge ram, just cause it was also my gaming rig.

Steer clear of nvidia cards for script mining and cpu is only good for scrypt-jane

I'd like to build a PC thats sole purpose for scrypt mining. If this works out I'd be willing to produce these for others. Currently this is my idea post, I've been into PC development since I was young. I was born in 1985, owed a computer since 1989. I propose Scrypt mining because you are able to build a standard PC to mine with. I'm going to start setting up what combonations I think would work best for this purpose.

My Current setup isn't that great but I'll post what I have:

Motherboard: ASUS P6T LGA1366
CPU: Intel i7 930 LGA1366 (35 Khash/s with all 8 threads, 28 to 30 Kh/s with 5 threads) pooler-cpuminer
Memory: 15 Gb 1066 Mhz
SSD: Kingston 120Gb
Video Cards: 2x Asus  Nvidia 9800GT 512Mb 258-bit (16Kh/s per card) cudaminer???
Power Suppy: 600W

I built that system 2010, and only had to upgrade the power supply from a 425W.

I would like to start researching what parts are realistic, since the cost of bitminers are still a little rich and/ or false claims. This way if it dont work out atleast the parts can be used for something else, besides having 100's of unipurpose bricks laying around.

This posts purpose is to introduce myself and say that I am a real people. I will edit this post with my findings, and Thank you for thoughs read this post.

Dbendure.

Potential Build:
Motherboard: Z87-EXPERT $229.99 3x PCIe x16 3.0, and 4 PCI
CPU: BX80646G3220 $69.99 supports PCIe x16 3.0
RAM: 4Gb 1333
SSD/HDD: pending
Video Cards: R9290-4GD5 $519.99 atleast one to start out with.
Power Supply: TPG-1200M $299.99 supports three cards comfortably
                         (
                         3 x 300W = 900W,
                         900W + (20%*900W) = 1080W,                  
                         900W - (20%*900W) =  720W,
                         which leaves 120W for the system, may need rethought...
                         )
                      TPX-1475M $329.99 to support the other four both are 80 plus gold +/- 20% Watts
                         (
                         4 x 300W = 1200W,
                         1200W + (20%*1200W) = 1440W,                  
                         1200W - (20%*1200W) =  945W
                         )
Case: pending
Cooling: pending