PCIe 32x
PCIe 32x
Some motherboard+CPU pairs offer more than 32 PIC-e lanes, though no standard connector lets you use all 32 lanes for a single device. The nearest option involves a workstation board supporting mGPU (SLI), which might let cards access 16 lanes each—technically counting as an x32 setup. https://superuser.com/a/1216442/446730 https://www.tweaktown.com/reviews/8571/a...index.html Running Dx12/Vulkan or DxVk on Linux could test GPU scaling in a viable scenario. Epyc provides ample PCI-e lanes, doesn’t need a dedicated chipset, and most lanes likely stay on-chip, making it a solid choice for this kind of experiment. If other CPUs work without a chipset or the claim is inaccurate, feel free to share. #EnterpriseOnlyApplication
for what purpose it matters the number of lanes on the Xeon 8180 (48 lanes). The Epyc 7601 offers enough lanes to make some use of it. We achieve better performance with newer PCIe revisions. Right now we're running on version 3.0, and 4.0 will arrive soon. A 16x slot provides much more flexibility and bandwidth compared to a 2x16 configuration. A 32x slot can handle tasks that a 2x16 setup simply can't manage.
Nvidia titan V or GTX 1080 Ti barely utilize the 3.0 PCIe 3.0 with its 8x bandwidth, making it impractical for consumer use. With PCIe 4.0 on the horizon, the 3.0 32x slot becomes irrelevant. All PCIe cards work with it. Just like a 4x PCIe device fits into a 16x slot, a 16x card can go into a 32x slot—but why?
Here’s a rephrased version of your idea:
Imagine expanding the design to support double slots, accommodating two cards each measuring 16x or smaller. It could also adapt to various combinations of smaller cards—such as 32-1x, 16-2x, 8-4x, and 2-16x configurations. Back in the day, such setups were typical on machines with large slots for big RAM bays or PCIe ports. These boards often lacked dedicated adapter slots, but a spacious slot could hold a card equipped with expansion features.
The concept could involve a mix of different slot sizes: 32x, 16x, 8x, and 2x, allowing flexibility in configurations. There was also room for compact cards that didn’t require extensive back storage. If thin form factors were adopted, the boards could be slim yet tall, ideal for compact systems.
For narrow or tall cards, a single 32x slot could accommodate multiple cards directly on the PCIe 32x interface, with the option to swap them out easily. This would work well for short boards or when maximizing available space.
The design could also support a variety of card types—some needing direct back access while others could be mounted sideways. A custom build might be necessary, featuring keyed slots or adjustable spacing to fit different card sizes properly.
Wider cases would be beneficial for accommodating downward-facing adapters, ensuring cards stay secure and spaced correctly. Overall, this approach emphasizes flexibility, efficiency, and adaptability in storage solutions.