PowerEdge C410x PCIe Expansion Chassis - 16 GPUs ?

[litepresence]

When the defense industry wants to do this:



or oil and gas exploration wants this:



they use one of these:




so why don't miners?






http://www.dell.com/us/business/p/poweredge-c410x/pd

http://www.cyclone.com/products/expansion_systems/
http://www.cyclone.com/products/expansion_backplanes/pcie412.php

Compact package
The PowerEdge C410x is a 3U expansion chassis designed to save space and weight.

Intuitive monitoring
A dedicated Intelligent Platform Management Interface (IPMI) management port notifies you of voltage and temperature variations and any other system issues that may need attention.

Uninterrupted service
Hot-add PCIe slots, hot-pluggable fans and redundant power supplies stretch system uptime and enable on-the-fly servicing.

http://www.amazon.com/StarTech-com-Express-Expansion-System-PEX2PCI4/dp/B000UZL1GC/ref=sr_1_1/184-4584415-1909258?s=pc&ie=UTF8&qid=1400553797&sr=1-1&keywords=PCIe+Expansion+Enclosure

http://www.youtube.com/watch?v=ADGSlYdnuWA

^^^ check out the TUBE


What is stopping the mining community from coming up with a low cost 16 or 32 slot pcie x1 expansion chassis?


I understand that heat becomes an issue... and packing gpu's like sardines ala the C410x may not be the answer... but why am I not seeing the mining community using using breadboards that can tie 16... 32... 100 GPU's to one CPU?



http://www.magma.com/catalog/65





http://www.cotsjournalonline.com/articles/view/101880




keywords: "pcie backplane" expansion server chassis rack mount breadboard "military display backplane" "oil gas exploration gpu" "pcie fabric" "geforce grid"



thanks!

litepresence

[klondike_bar]

i think it is partly a restriction of the operating system (windows 7 can handle 5 GPU and windows 8 can handle 6 IIRC). most linux distros are only capable or 6 GPUs

also, price and redundancy. having common components means its easier to have multiple ~$200 mobo/cpu/ram combinations than a single system with a $200-1000+ expansion device

[litepresence]

http://www.microsatacables.com/pci-e-express-1x-to-4-port-pcie-1x-riser-switch-card-with-usb-3-0/


these 4x1 splitters are only $65.   Sure beats a $200 motherboard/cpu/ram combo

here is someone using one:



http://imgur.com/a/osM8K
http://www.reddit.com/r/litecoinmining/comments/1vmr12/my_wall_mounted_34mhps_7_gpu_rig_i_dont_usually/

biggest complain then was the $65 splitters were sold out... now 80 in stock order now