PCI-Express 4.0 to Double Bandwith and Allows for 300W Slot Power
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tsunami231
No more power cables to the gpu!
In the article you say
Miss type or what?
I love my new system but now I kinda regret not waiting lil longer power cables to the gpu is one things that has drove me crazy
Stormyandcold
Great tbh. Will also help a little with internal case cable-management and air-flow.
Could also on the other-hand pave the way forward for even higher wattage cards. 600watt+ cards now possible for desktop?
Evildead666
I still fully believe its all about having more than 300W per-slot, rather than through the slot.
tsunami231
um that would be horrible idea if gpu start doing that, so they probably will do that.
better question would be would the motherboards be able to hand sli setups with that kind setup. 2 200 watt cards draw power threw the slot seem like a disaster waiting to happen to the mobo,
Evildead666
If they were going to go through a slot, they would surely remember the E-ISA slot, and add a slot for power behind the PCIe slot.
That way they get the power through a slot, and the PCIe slot stays compliant, and backwardsly compatible.
Stormyandcold
It's ok, they will sell more motherboards. :bigsmile:
I also think AMD would likely be the first to benefit from this higher power-ceiling.
nhlkoho
This. There's no way that just the slot will provide 300W.
PrMinisterGR
I honestly can't see 300W going through the motherboard to each slot safely. Motherboards for 140W CPUs have huge VRM configurations to work really well, I don't know why they wouldn't leave this to the PSUs where it belongs, instead of making motherboards more expensive artificially.
Evildead666
If they were going to do it, they would do better designing a whole new slot for it, than jimmy-rigging the current slot.
So no, it isn't going to happen. 🙂
It just has to be a misunderstanding on the part of the dude who first wrote about it, and then the horse bolted before the door could be shut.
edit : Just to be clear, when I said per-slot, it implies, per-card, which can have a triple slot cooler, as Nvidia (iirc) asked for back in the (post?) Fermi days.
I'm surprised it wasn't in PCIe 3.0 remembering it now...maybe it was too late for PCIe 3.0 spec finalization. Who Knows...
rockupuncture
Until we get out of the dark ages of console ports does any of this matter?
PrMinisterGR
Hint: We never will.
schmidtbag
Had it not occurred to you that PCIe serves more purposes other than supporting GPUs?
Stormyandcold
New slots wouldn't be out of the question, although, keeping the current one would just help with compatibility.
We've been through quite a few; ISA, PCI, AGP (various speed bumps), pci-e (various improvements too). I wouldn't rule it out if there was some benefit.
Evildead666
No, I wouldn't rule out a new slot either, i just firmly believe that they wouldn't change the spec of an existing slot.
I am dumbfounded that no site would have asked the point of view of any motherboard manufacturer, because they are the people that should be in the know, if any new PCIe slot changes are going to happen.
And its not like it would be a big secret, since all the vendors would already have the info.
It has to be a misunderstanding, and its just officially to allow a PCIe spec for the card to go over 300W, maybe to 450W or more.
We haven't seen any dual GPU cards for a bit, and i'm sure the vendors like having that option to differentiate themselves from the pack (Asus for one).
Fox2232
Unless you have reason to plug additional 300W of power connectors into MB just to pull that energy through traces and PCIe slot.
And on top of that have Graphics cards no longer backwards compatible with PCIe 3.0 and older which not only can't pull that according to standard, but apparently burn physically same slots at 75W.
Even today, you see MBs without additional PCIe PSU connection to feed all slots.
Now think about all those manufacturers deciding on how many 8-Pin PCIe Power connectors to place on MB.
And no more External power delivery? = No more OC of top cards which already eat around 300W.
Think about what VRMs do. And then you'll realize that Power from PCIe 8-pin goes right through traces to slot unchanged. But still... my reply above, about moving power connectors from cards where they are as needed to MB where they have to be ready in advance.
(Buying MB with 8x PCIe power plugs just because it has 4x PCIe 4.0 x16 slots... what a cost and design nightmare.)
__hollywood|meo
ill take my clean power straight from the PSU, thanks. i dont mind routing cables.
i think this is most interesting from a storage standpoint. the connector specs on the last slide, for instance...otherwise, the bandwidth almost seems to be a waste.
