i do not think AMD made a special IO-DIE for this cpu, more possible is the lanes are just not wired.
Epyc 9d64 CPU support
- Thread starter CyberArtem85
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Thank for your reply. Maybe you can give me some hint on how to proceed to get a hard drive working with this CPU?
I had a closer look at the dmesg and lshw outputs, which I attached.
Lspci indicates that I have SATA connections on PCI IDs 03:00.0-1 and c6:00.0-1
For the c6:00 slot the dmesg output says that "8/8 ports implemented" (at the top in the screenshot), for 03:00.0-1 it says "1/1 ports implemented".
Having a look at the Mainboard (H13SSL) layout in the documentation, I cannot figure out which PCI connection the one at 03:00.0-1 with a single port could be. But for the c6:00.0-1 PCI connection this somewhat resembles the third MCIOx8 slot of the mainboard's P0 group, which has an alternative designation as SATA[00:07], which sounds somewhat similar to the "8/8 ports implemented" dmesg line.
But I have no clue if I am misinterpreting something here. Maybe a more experienced user can help me?
Would it make sense to get an MCIOx8---SATAx8 cable in order to try if these drives can be found by the system? Or am I completely lost with my interpretation?
I'll be glad about whichever hint I may get here.
Thanks!
I also attached the lshw output for c6:00, but I don't see any helpful information there. I might just miss it...
I had a closer look at the dmesg and lshw outputs, which I attached.
Lspci indicates that I have SATA connections on PCI IDs 03:00.0-1 and c6:00.0-1
For the c6:00 slot the dmesg output says that "8/8 ports implemented" (at the top in the screenshot), for 03:00.0-1 it says "1/1 ports implemented".
Having a look at the Mainboard (H13SSL) layout in the documentation, I cannot figure out which PCI connection the one at 03:00.0-1 with a single port could be. But for the c6:00.0-1 PCI connection this somewhat resembles the third MCIOx8 slot of the mainboard's P0 group, which has an alternative designation as SATA[00:07], which sounds somewhat similar to the "8/8 ports implemented" dmesg line.
But I have no clue if I am misinterpreting something here. Maybe a more experienced user can help me?
Would it make sense to get an MCIOx8---SATAx8 cable in order to try if these drives can be found by the system? Or am I completely lost with my interpretation?
I'll be glad about whichever hint I may get here.
Thanks!
I also attached the lshw output for c6:00, but I don't see any helpful information there. I might just miss it...
Attachments
try and error.
if i just mill the pins for sata away, but they still show in dmesg...
Thank you for your replies. It took some time for me to continue on that project.
So now I finally got the "MCIO to 8x SATA" cable, but it did not work for me. I cannot prove that the cable is undamaged, and I did not test all 8 SATA slots, but so far I did not manage to make it work. No SATA hard drive shows up in BIOS nor in Linux /dev.
I also set the motherboard jumper JSATA to explicitly SATA mode. The dmesg output (attached in my previous post) still indicates that there are some SATA ports detected, but I just don't know which ones they're supposed to be. They might not be accessible after all, as RolloZ pointed out.
But maybe some very specific BIOS settings can do the trick? I had already tested explicitly setting PCI modes to SATA explicitly without success. The SATA drive that I am using for tests is quite old (but still OK), maybe this requires some tweaking?
I'll gladly accept any further advice that you may have...
So now I finally got the "MCIO to 8x SATA" cable, but it did not work for me. I cannot prove that the cable is undamaged, and I did not test all 8 SATA slots, but so far I did not manage to make it work. No SATA hard drive shows up in BIOS nor in Linux /dev.
I also set the motherboard jumper JSATA to explicitly SATA mode. The dmesg output (attached in my previous post) still indicates that there are some SATA ports detected, but I just don't know which ones they're supposed to be. They might not be accessible after all, as RolloZ pointed out.
But maybe some very specific BIOS settings can do the trick? I had already tested explicitly setting PCI modes to SATA explicitly without success. The SATA drive that I am using for tests is quite old (but still OK), maybe this requires some tweaking?
I'll gladly accept any further advice that you may have...
I use an 9d64 on this board with OS on USB. Had no chance to boot this CPU with something else.
I think I had a similar problem, using XUbuntu (some 24 version) vs a recent version (25 something). IIRC, the issue could be alleviated by switching from UEFI to Legacy boot in BIOS. However, crash at boot still occurred from time to time.
I'll report if I find something in my notes...
I'll report if I find something in my notes...
So .. i just spotted this: Which pretty much tells me that there has to be a way to run two of those in a single system:
Source: https://www.spec.org/cpu2017/results/res2024q4/cpu2017-20241104-45177.pdf
Source: https://www.spec.org/cpu2017/results/res2024q4/cpu2017-20241104-45177.pdf
Hi,
I can boot from MCIO3 port on H13SSL-N with an MCIO cable to NVME and an NVME to M.2 adapter!
I think it can support U.3 drives too.
But be careful 2 type of MCIO cable seen on ebay, you need the blueis PCIe 5.0 cable.
Sellers mix them up, like in my case, so I have to remove the plastic frame; it works, but too loose in the slot.
I can boot from MCIO3 port on H13SSL-N with an MCIO cable to NVME and an NVME to M.2 adapter!
I think it can support U.3 drives too.
But be careful 2 type of MCIO cable seen on ebay, you need the blueis PCIe 5.0 cable.
Sellers mix them up, like in my case, so I have to remove the plastic frame; it works, but too loose in the slot.
Attachments
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