So I would suggest to again RTFM like you said you know how to do.I have a total of three (3) M.2's installed. all are PCIe 4.0 types. A Samsung installed in the M.2_1 (SOCKET3) and Crucial two (2) in the DDR4 DIMM.2_SLOT. The M.2_1 (SOCKET3) is a PCIe 5 slot which is located above (under the OLED) the GPU PCIEX16(G5)_1 slot. The reason I chose all of those slots is so I can have access once I install all the EK blocks .. i.e. easy access!
Please read carefully.LMAO .. only one problem with your theory the GPU is installed in as I said "The RTX 4090 is installed in the PICEX16(G5)_1. 1" .. not in PCIEX16(G5)_2.
Are you purposely trying to pull out rebuttals? der8auer's issue and your issue isn't the same thing.WOW .. NO! Here's a copy of the page and below that at 10 minutes using a different MOBO.
View attachment 2585691
View attachment 2585692
Man you really are dense.Der8auer damaged his GPU by heating it up in an effort for fix a "problem' that I don't think he had. Burn this into your head .. my GPU is installed in the slot PICEX16(G5)_1 not (_2) which is the bottom PCIe x16 length slot. PICEX16(G5)_2 is Disabled. The shared bandwidth of the Samsung in M.2_1 only effects PICEX16(G5)_2.
Look and re-read my original post and then look at the page of the manual and if necessary the actual picture I posted of my PC to see for yourself.
No need to beat a dead horse here, the OP is hard headed and if it doesn't explicitly say it in the manual it must not be true.As others have said, the manual (you even posted the page with the details) is quite clear. The two PCI-E slots share physical bandwidth, and the Gen.5 M.2 slot shares bandwidth with the second slot, which disables the second slot. The logical continuation of this is that with an NVMe M.2 in the Gen.5 M.2 slot, the second PCI-E slot is disabled and the first slot is reduced to x8 bandwidth, rather than x16.
This scenario is not at all uncommon on consumer boards, where the CPUs simply don't have the PCI-E lanes of the workstation/server chips and thus to cram all the features people appear to want on, motherboard manufacturers pull tricks like, "if A (enabled) then not B (disabled)" for features which it would be nice to have simultaneously. There used to be lane splitters/mux chips, but as PCI-E speeds have increased, they appear to have fallen out of favour as they are not as fast and were usually fairly expensive and with greatly increased latencies.
Inaccessible = cannot get to.
Unassessable = cannot evaluate.
Here we have a great example of someone who thinks they are smarter than everyone else.I get a couple of you TROLL like little children and somehow feel (LMAO) empowered. But you're both (Agent-A01) guessing and assuming, and if you were in my home / office I'd have you escorted to the curb. So go Troll someone else. I don't need or want your "help."
Passive aggressive? Right, whatever you want to tell yourself 😘Then you seriously need to get a life. I read some of your other posts, you got a real passive-aggressive thing going on. Tell Roman he's "dense." BTW post your CPU-Z .. I got a feeling here about you.
To let this dead horse rest here's an updated manual for the extreme that explicitly states using the first M.2 slot forces GPU to 8x.is it possible that while idle your gpu lowers bandwith?
mygtx 1070 on x570 taichi in idle shows PCIe [email protected], when i start GPU-z test it goes to PCIe [email protected]
Incorrect.12/13 gen cpu’s has 20 pcie lanes - 16 available for gpu in 1x16 or 2x8 config.
M.2 drive in M.2_1 will not make gpu to run at x8. In z790 extreme case problem starts when you install drive in M.2_2 since it is sharing 4 lanes with second pcie slot. That will cause gpu in top slot have only 8 lanes available. Thats is documented in manual.
Yes it's a limitation for all motherboards that use M.2 at Gen 5 speeds due to limited CPU lanes.You’r right. Imho - this is plain stupid, they should put big warning sign on motherboards top m.2 slot with explanation.