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Author Topic: Basic mobo/cpu for 4 GPU mining -advice sought  (Read 965 times)
AtomicDog602
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May 04, 2017, 03:41:58 PM
 #1

I was looking at building a 6+ GPU rig, but the Z270 boards are so freaking expensive.  In some of those 6 gpu threads people have suggested building a 4 gpu on the cheap for faster return and this makes sense.

Is there something in the lga1151 family that is cheap and reliable that people here can suggest from experience?  I will be sourcing it from Amazon.

Thank you for your advice in advance!
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May 04, 2017, 05:07:12 PM
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If you want to build a basic setup for real cheap, I would look at the Dell XPS 700 line. They have a LGA775 socket (Core2 Duo) and 4 PCI-E slots. There are plenty on eBay and you should be able to get a used mobo, 1000W power supply, cpu and ram for ~$120. I have a three card XPS 720 rig. The only problem is you can't access the bios with a newer video card in the primary 16x slot, so I have an old Nvidia 6600 I use when I need to access the Bios. Otherwise they boot and mine just fine with three cards.
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May 04, 2017, 06:18:32 PM
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If you want to build a basic setup for real cheap, I would look at the Dell XPS 700 line. They have a LGA775 socket (Core2 Duo) and 4 PCI-E slots. There are plenty on eBay and you should be able to get a used mobo, 1000W power supply, cpu and ram for ~$120. I have a three card XPS 720 rig. The only problem is you can't access the bios with a newer video card in the primary 16x slot, so I have an old Nvidia 6600 I use when I need to access the Bios. Otherwise they boot and mine just fine with three cards.

Core 2 duo is really outdated to make mining with multi GPU-s. I think you can do fine with a B150 chipset in the LGA 1151 from MSI, ASUS or GIGABYTE. All these motherboards with the B150 chipset costs 100 USD new so I think you can find it cheaper on ebay used or amazon. Also they have 2 PCIex16 to put 2 cards on them and also 3 pciex1 to put three other cards with the risers. That's the most solid choice as only the H110M chipset is cheaper than B150 and has only 1 PCiex16 and 2 pciex1 so maximum can use three cards.

                                                                       
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philipma1957
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May 04, 2017, 07:58:10 PM
 #4

op this is the best low cost 1,2,3,4 card mobo.  I own one and highly say get it.

gigabyte b250m gaming 3

https://www.newegg.com/Product/Product.aspx?item=N82E16813145007


68 after rebate

I use an intel 6100t in it.

but it will use  pentium g4400t , g4560   any 1151 cpu

has 2 full slots  it can do any 2 cards  amd or nvidia  with no risers.

If you want 3,4 cards  you will need risers.

1 stick of ddr4 ram 4gb

and off you go.

as long as you want a 4 card or less build  this is pretty your best choice.

amazon

https://www.amazon.com/Gigabyte-GA-B250M-Gaming-LGA1151-CrossFire-Motherboard/dp/B06Y5YNX3Z/ref=sr_1_2?

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Apneal
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May 04, 2017, 08:04:06 PM
 #5

Also for 4GPU power, I suggest getting:
http://www.parallelminer.com/product/hp-750-watt-power-supply-kit-for-gpu-mining-platinum-94-zec-dash-eth/

And for the motherboard/cpu power, just whatever crappy cheap 200w POS you can find for $20. This 750W should be able to power the GPU AND risers for 4 cards pretty easily (modern risers are usually PCI-e powered as well)
AtomicDog602
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May 05, 2017, 05:57:39 AM
 #6

Thank you so much.  Great info even on a PSU at a smoking price! 

I knew people here would know what to do.  Makes ramping up from a small 2 GPU miner, to a second 4 GPU rig a little less trouble.

I know nothing is cheap.  I did go with the pentuin 4400 suggestion also.  I was looking at that exact CPU already so you confirmed my belief that it was plenty.
Mavnasty
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August 14, 2017, 08:49:21 AM
 #7

Hey guys, Brand new here.

I bought  the Gygabyte b250m gaming 3 , g400 , and a really nice 1000w PSU. I have 3 asus strix 970's

Im anle to get all the cards working in wither of the pcie x16 slot but as soon as I plug in a 1x usb riser I cant get any signal from any card in slot.

I have searched through thw bios settings a million times and just cant seem to get it working.
I have updated bios, drivers, etc.

Does this mobo have certain bios settings?

Thanks!
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