ASUS ROG Crosshair X670E Extreme Overview Slots and Storage PCIe Lanes

ASUS ROG Crosshair X670E Extreme Motherboard Overview by Request. This is about Slots and Storage of PCIe Resource allocations. We're going to be looking at and Comparing the difference in Design vs Implementation. Yes, We have shared Resources. Yes, We have 3 Slots and 5 M.2 NVMe PCIe Drives. But there's going to be some give and take in all of that Resource allocation. We'll Itemize CPU and Chipset PCIe Lanes. And explore the Rear I/O Panel Layout of Resources. We'll use the Motherboard Manual and Motherboard Bios Manual for Our Overview. Included in Discussion: On-die ECC DDR5 and Sideband ECC DDR5.

Note: Supports On-die ECC which is Non ECC DDR5! To reiterate this does NOT support Sideband ECC!

Links:
1. ASUS ROG Crosshair X670E Extreme Motherboard
2. AMD Ryzen 9 7950X Desktop Processors - 16-Core, 32-Thread
3. AMD Socket AM5 Chipset - AMD
4 AMD Zen 4 & Socket AM5 Explained- PCIe Lanes, Chipsets, Connectivity - TechPowerUp}
4. Intel JHL8540 Thunderbolt 4 Controller
5. Gigabyte Unveils AORUS Gen5 AIC Adaptor with 4 Built-in NVMe M.2 Slots
8. MemTest86 - ECC Technical Details
9. DDR5 Memory Standard- An introduction to the next generation of DRAM module technology - Kingston Technology
10. DDR5 has a new Sideband Bus - FuturePlus Systems
11. ECC in DDR Memories - DesignWare IP - Synopsys
12. Crucial Memory Finder - ASUS ROG CROSSHAIR X670E EXTREME | Memory RAM - Set Filter!
Crucial 64GB Kit (2 x 32GB) DDR5-4800 UDIMM - CT2K32G48C40U5 [On-die ECC which is Non ECC DDR5]

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[Lightbringer_]

5 Minutes in, and I've learned more than in a year than by myself. Great video, great channel. Subscribed.

[thiagodocoutoesilva]

Hello.
Thanks for the video.
Where would you recommend that I put my second (only using 2) M.2 drive on this board for the best performance? To keep the RTX 4090 at 16x?
Im also using Soundlaster AE-7 on the PCI x4 from the botton.

[waderobinson]

wow so much for ECC support. thank you for clarifying what no one else has in simple language.

[ByzKing]

I'm really confused as to what to do next. I'm deciding what to do with my PCIe 4 NVME M.2. I'm running a PCIe5 / Gen 5 NVME in the Z card and using a 4090 in my primary PCIe5 slot. I'm considering leaving the Gen4M.2 in the same Zcard as the Gen5 M.2. Before I got the Gen5 NVME M.2 and was running just the Gen 4 NVME in the NVME slot behind the 4090 GPU, my games would occasionally crash.

[Polyhdron]

Thank you for this. I just got this board and wasn't sure how the PCIe lane allocation would all work out.

[Black_Onyx]

I was looking for this board and how it handle M.2 PCie5 and amazing info is given on this video, thank you so much!!! 😉👍

[LunarGhostII]

I've been building computers for 10 years now. I'm reminded that there is still things I don't know and that I will become ignorant on due to constant improvement on current tech. But I'll be damned if this board didn't confuse the ever living hell out of me. This video clarified so much I was shaking my head at the end. This was the first video I've seen by you, and now you have a new sub. Manufacturers really need to be concise on how they word their tech documents and address their information.

[mahmahmahmahmah]

This guy is a legend, was hoping to see more videos.

[BurkeSchneider]

If a PCIE Gen 4 M.2 and a PCIE Gen 5 M.2 device are both installed into the ROG GEN-Z.2 card, will the overall speed of both devices be limited to the slower of the two M.2 drives? It seems odd to me that the manual mentions a slot for PCIE Gen 4 and a slot for PCIE Gen 5 when the ROG GEN-Z.2 card shares a single connection to the motherboard near the RAM slots. Thanks for the detailed overview!

[theonlyone]

I am 100% saving this for later, as I've been considering this board for sure.

[weatherguy]

31:31 hi so I am trying to get a Elgato PCIe x1 card to work on the PCIEX4 slot but no video will appear until I move it to PCIEX16_2 which is not ideal. I also have a x16 GPU in PCIEX16_1, and 2 M.2 drives installed in GENZ_1 and M.2_1. I have no idea why the elgato will not show any video on PCIEX4, any ideas?

[sdddfdf]

hello. I'm enjoying the video. I wonder when you will be testing the Thermalright hr-09 2280 pro. I'm curious about the comparison with acidalie 4 pipe

[docjuanmd]

Subscribed! I have been watching your videos recently and found a lot of info from HBA cards and this! Getting this board and will arrive next week. Can the OS boot on the ROG Gen-Z.2 card? Planning to install 2 m.2s. 1 on the M.2_1 and 1 on the GenZ.2 card. Btw, I will be aircooling the 7950X on this board with a noctua NH-D15. I am not comfortable using an AIO or the likes running 24/7.

[Bloomis]

I wish every video I learn from is as detailed as this one, amazing. Question: If I have M.2_1 and x2 M.2 drives via the GEN-Z.2 slot AND a single SSD in the SATA port.... would I still get x16 lanes for the GPU?

[yourboyoh]

Will my GPU stay at x16 if I use two m.2 NVME drives via M.2_1 and M.2_2

[mistersponge]

Wow you are so knowledgeable! After watching your video and reading the comments I realized I need to move my second M2 from M2_2 to the GenZ adaptor.

My question is is there any advantage or preference for which GenZ slot I place a pcie Gen 4 ssd in?

[Outsiderwr]

Wow! So much to Learn about ECC, and how it relates to overclocking. (Will have to see that other video) What I have learned from the comments and replies about M.2 Drives and PCIe is almost over-whelming. The M.2 platform or other PCIe SSD as a whole have blown my mind, when I heard of them sometime ago taking the market and being out of the loop for a while. SO could the Motherboard be overloaded with PCIe assets as(for example) just 2 GPUs on main and second PCIe slot, 2 M.2 SSDs on their on board slots (M.2_1 and M.2_2) and, if physically possible, put a x4 PCIe card of any kind on that last slot? Would the last device on that x4 slot be disabled or "not Seen" by the motherboard to prevent damage or would it just cause damage? However, it does seem the PCIe_2 (8x) slot is placed in such a way that it would block the x4 slot from being used? Just a note for Gamers/Developers, The max use of those PCIe lanes (If my Understanding is right) would be x2 GPUs, x2 M.2 SSDs if you don't mind those all running at x4 each. With additional x2 M.2 drives via the GEN-Z.2 slot and Riser/adapter card if you want to fill out every slot.

[brogster]

Where would you recommend that I put my main M.2 drive on this board for the best performance.

[hankarmstrong]

Boy did I just get educated. Thanks for sharing your knowledge. I could have stayed with my old computer knowing what I know now. It's only built to run MS Flight Simulator 2020 and understanding shared resources made this NEW machine even faster. Running RAID0 would NOT really make it faster sharing resources. So 1 M2-1slot and 1 GPU PCIe x16 would be faster? The EXTREME board "seemed" faster, better and PCIe 5 seemed like the way to go. Live and learn. Thanks Gill!! Much more to learn about this board.👍👍

[Phyrex]

my english is not 100% perfect. Have I understood correctly that if I install a graphics card plus two m2 cards in the m1 and m2 slots, I will not have any problems with the lanes? I actually wanted to install two m2 cards in the slots mentioned above and two in the expansion slot, but I just noticed that there were problems with the lanes there.