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Building a Rig with 4 GPUs - Thoughts?

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Building a Rig with 4 GPUs - Thoughts?
CrazyIdeas Offline
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#1
02-12-2020, 06:26 AM (This post was last modified: 02-12-2020, 06:56 AM by CrazyIdeas.)
I've been researching some different options to create a password cracking rig that will contain 4 GPUs. I'm looking for your input to see if this "semi-budget" build using a mix of new and used parts will work out with the following parts I've listed below. Please let me know if there's better options in the same price range and maybe other cheaper options I should consider that con accomplish the same thing. I'm vendor agnostic and don't mind used/open box parts.

        Part | Cost | Condition
  • Samsung - 860 EVO 1TB Internal SATA SSD | $109 | Used
  • Rosewill Hercules 1600w Power Supply | $130 | Used
  • NVIDIA GeForce GTX 1080 8 GB Founders Edition GPU | $350 | Used
  • CHENBRO RM41300-FS81 Black Server Case | $163 | New
  • Intel Core i7-5930K | $100 | Used
  • Cooler Master Hyper 212 Black Edition CPU Cooler | $30 | New
  • 2 x Crucial Ballistix Sport LT 16 GB (1 x 16 GB) DDR4-2400 RAM | $130 | New
  • Gigabyte X99 SLI ATX Motherboard | $170 | Used
  • Total Cost: $1,181.97 as of 2-11-2020
Let me know what you think, thanks in advance!

Note: This build will start with one GPU in the beginning and the additional GPUs & RAM will be added over time. Also a server case is preferred right now so it can be rack-able (open to suggestions on other cases).
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undeath Offline
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#2
02-12-2020, 01:07 PM
In general the composition and price seems good but the case does not allow mounting 4 GPUs. It only has seven expansion card slots.
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CrazyIdeas Offline
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#3
Smile  02-13-2020, 04:46 AM (This post was last modified: 02-13-2020, 04:54 AM by CrazyIdeas.)
I was able to dig up a photo of 4 GPUs in that case, tight fit but it looks like it will fit. There's 8 expansion slots, but BARELY ...the last one looks like it's a part of the case.

I uploaded a example to imgur.com:

4GPUs in Server Case


I think I'll pull the trigger on this soon, but I'd like to hear from other peeps.
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NoReply Offline
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#4
02-13-2020, 11:50 AM
There is only one fan in the front which is dedicated for the HDDs, so no airflow at all to your GPUs. I think you will definetely need some serious fans pushing air to your GPUs, otherwise they will overheat. With only 1 GPU, it could be fine though.
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CrazyIdeas Offline
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#5
02-14-2020, 03:19 AM
(02-13-2020, 11:50 AM)NoReply Wrote: There is only one fan in the front which is dedicated for the HDDs, so no airflow at all to your GPUs. I think you will definetely need some serious fans pushing air to your GPUs, otherwise they will overheat. With only 1 GPU, it could be fine though.

As more GPUs get added more fans will be added. I'll probably upgrade the ones it comes with too.
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