Has anyone used a PCI-E splitter for GPU crunching? Specifially something like:
http://amfeltec.com/products/flexible-x4-pci-express-4-way-splitter-gpu-oriented

All the best,
Aaron Lephart

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Interesting, but far from cheap (but certainly cheaper than building another system)

Some folks do run extenders and single form swappers, but a four way splitter sounds a great way of putting a load of GPU onto that unused port.

I also noticed they do a mounting frame: http://amfeltec.com/products/gpu-oriented-cluster/

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Bob Smith
Member of Seti PIPPS (Pluto is a Planet Protest Society)
Somewhere in the (un)known Universe?

That product has been looked at by people in the past
PCI to PCIE Adaptor and Other Interesting Gizmos
Who uses PCIe extenders; do they work?
but I'm not sure that anyone has given it a go yet.
Using the PCIe x4 splitter it would effectively run the cards with 1 lane each. The same as the PCIe x1 to x 16 adapter cables really. Which may be a cheaper option if you have a MB with several x1 slots. Why no one makes a splitter to take a single PCIe x16 slot to 4 PCIe x4 slots is beyond me.
At the moment I have an interest in the PCIe x1 to x16 adapters like this
http://www.ebay.com/itm/PCI-Express-PCI-E-x1-to-x16-Powered-Riser-Card-w-60cm-USB-Cable-/271661230631

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I have 3 of those exact x1 to x16 riser cards coming in the mail already. I will let you know how it goes!

All the best,
Aaron Lephart

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