Non-standard Motherboard with Eight PCIe x16 Slots

A forum for discussing FAH-related hardware choices and info on actual products (not speculation).

Moderator: Site Moderators

Forum rules
Please read the forum rules before posting.

Non-standard Motherboard with Eight PCIe x16 Slots

Postby Kamicrit » Thu Sep 14, 2017 10:09 am

Image

https://www.techpowerup.com/236961/colorful-intros-a-non-standard-motherboard-with-eight-pcie-x16-slots

Eight cards, two power supplies, and a custom case later. The most powerful single board folding setup yet.

Eight of any GPU would net you crazy PPD, would be a great rig to do a bulk buy of a GPU with the best $/PPD.

If you had eight 1080 TI's at full tilt, you'd be pulling 2000W from the wall. Electric stove element glowing red hot pulls 1500W.
Last edited by Kamicrit on Thu Sep 14, 2017 9:17 pm, edited 1 time in total.
Kamicrit
 
Posts: 7
Joined: Wed Apr 07, 2010 3:10 am
Location: Western Canada

Re: Non-standard Motherboard with Eight PCIe x16 Slots

Postby rwh202 » Thu Sep 14, 2017 10:49 am

Cool - A lot neater than faffing with risers, but 7 slots are only 1x speed, which isn't ideal. 1 DIMM too - 16 GB would be cutting it fine for 8 GPU slots, so that's a rather pricy 32 GB SODIMM to go with it.

Also, I don't understand all of the PCI power connectors - are some outputs for the GPUs, or are they just to supply the slots with power which seems overkill? 32 8 pin connectors would be a monster PSU or four!
rwh202
 
Posts: 287
Joined: Mon Nov 15, 2010 8:51 pm
Location: South Coast, UK

Re: Non-standard Motherboard with Eight PCIe x16 Slots

Postby foldy » Thu Sep 14, 2017 12:17 pm

Board has no 24-pin power connector so the pcie power connectors are used, 8x 6pin to deliver 75 watts for each slot. (The other 8 pcie power connectors are optional.) Because of x1 pcie speed this board needs Linux because Windows would bottleneck too much.
foldy
 
Posts: 909
Joined: Sat Dec 01, 2012 3:43 pm

Re: Non-standard Motherboard with Eight PCIe x16 Slots

Postby Nathan_P » Thu Sep 14, 2017 8:56 pm

Anything will bottleneck on x1, that board isn't worth it for folding IMHO.
Image
Nathan_P
 
Posts: 1703
Joined: Wed Apr 01, 2009 9:22 pm
Location: Jersey, Channel islands

Re: Non-standard Motherboard with Eight PCIe x16 Slots

Postby Kamicrit » Thu Sep 14, 2017 9:16 pm

Very good points raised. Completely forgot about losing all those PCIe lanes per slot. Seems like the tried true standard mobo is still the best folding setup.

But cool in concept nonetheless!
Kamicrit
 
Posts: 7
Joined: Wed Apr 07, 2010 3:10 am
Location: Western Canada

Re: Non-standard Motherboard with Eight PCIe x16 Slots

Postby v00d00 » Fri Sep 15, 2017 12:28 pm

I'd love that board, but not for a 8x 1080ti sort of dream. But for a 8x passive 1050ti folding system or 8x 1060 watercooled silent system. Build a custom tower to house it and the cards.

I have tested my current cards on x1 and the PPD gain between x1 and x16 seems negligible on them. Just like the 1-2 % drift between pci-e 2.0 and 3.0. Yes on a 1080 it makes a difference, but when you are running something that makes 250k/day, 1% is not something I would lose sleep over.

If I could source one I would. Probably wont be able to get them over here anytime soon. But to build a 700w silent system purely for folding that I could stash somewhere out of the way and would produce ~1mil PPD, while not turning that room into a raging inferno. Very sweet.
Image
User avatar
v00d00
 
Posts: 502
Joined: Sun Dec 02, 2007 4:53 am
Location: In the UK

Re: Non-standard Motherboard with Eight PCIe x16 Slots

Postby lastole » Fri Sep 15, 2017 1:22 pm

Interesting, but an 8x1080Ti system would need at least a 25-amp electric circuit (probably 30amps to be safe). Not a lot of those in residential buildings -- at least I don't have one except for my central AC unit which I use half of the year. I could run power cords to two outlets on different breakers, I suppose. Is this what guys with racks of GPUs on risers do?
lastole
 
Posts: 9
Joined: Tue May 24, 2016 1:50 pm


Return to FAH Hardware

Who is online

Users browsing this forum: No registered users and 1 guest

cron