Would an ADT-Link R43SG transmit data at PCIE 4 speeds if both the GPU & M.2 slot were PCIE 4?
With the latest GPUs' being gen 4 and because 11th gen Intel laptops could have a gen 4x4 M.2 slot would the ADT-Link R43SG setup run at 32Gbps or 64Gbps?
I have heard that high quality gen 3 cables could transfer at gen 4 speeds but not sure at all about if this is accurate.
Do members of this forum have any contact with ADT-Link to know if they would work on a gen 4 version?
I'm particularly interested in the doubling of bandwidth as I would really like to use the internal display of the laptop without running into a bottleneck rather than having to use an external one.
Thanks for reading.
@mqyrk, This is something I meant to test on several occasions. First attempt was with an Intel Evo laptop that has Thunderbolt 4 and a PCIe 4.0 M.2 slot. I couldn't get the laptop to boot with the R43SG adapter connected. I'm going to try with another Intel Evo laptop soon. Another backup plan is through an ATX motherboard, Gigabyte Vision D B550.
It might be possible. The length may need to be shorter. The only thing stopping gen 4 speed is the quality of the cable. PCIe does link training to see if each lane can do gen 4 reliably and if not, it falls back to lower link rate. Sometimes this link training causes issues so people limit (in BIOS) the target link rate to gen 3 so that PCIe doesn't even try gen 4.
I have a gen 4 source (HighPoint SSD7505) but haven't tried it with ADT cables or M.2 to PCIe x4 adapters.
Maybe one can set gen 3 in BIOS, then use pciutils to retrain for gen 4? I do this to get gen 3 or gen 4 devices to work at gen 2 speed in my Mac Pro 2008 which defaults things above gen 2 to gen 1.
@cardant, Yes, I tested the ADT-Link R43SG adapter (50cm cable) with a Z490 Vision D motherboard a few weeks ago. Unfortunately it could not negotiate a PCIe 4.0 link. I manually set the Link in BIOS to PCIe 4.0 as well but the best was gen3.