Test SSD P5801X and PCIe x1 ?

[tistou77]

Hello

I wanted to test a P5801X SSD, used with a PCIe E1.s adapter card on the motherboard's PCIe x16 slot *2

To begin, the SSD wasn't recognized. In the BIOS, I had to find the appropriate option : Advanced/CPU Storage set to Hyper M.2 x16 (data). The other options don't work, it's for VROC

And then the problem arises, the SSD is recognized as x1, and my OS SSD is the same

Only the Samsung SSD on the DIMM.2_2 is at x4...

In the Advanced/Onboard Device options, it's set to Mode 2 (so it's supposed to be fine)
And with a 10980XE and these 48 PCIe lanes, I should be good ?

PCIe *1: Graphics card (x16)
PCIe *2: P5801X (x4 or x16 since the option is set to Hyper M.2 x16 (data))
PCIe *3: SSD (x4)
DIMM.2_2: SSD (x4)

Is there less than the 48 PCIe lanes of the CPU ??

If anyone has any ideas?

Thanks

PS: I'll test it instead of the OS SSD (by installing an OS).

[tistou77]

I tested it instead of the OS SSD, and it's still at x1.
But I no longer need the options in Advanced/CPU Storage (Hyper M.2 x16 (data) )

Could the problem be with the PCIE 4/5 gen adapter (it's normally backward compatible) ?

EDIT : indicated pcie 3.0 -x1 so it's good for adapter...

I will test another adapter and reset the bios, and then it will be a return if still in x1

[tistou77 · Accepted solution]

It's good, it was adapter 🙂

[Int8bldr]

storage adapter cards, like raid cards are finicky.

I had an adaptech raid card with some U.2 SSDs connected to it. separately I also had an ASUS hyper VROC Hyper M.2x16 card (with 4 x intel only Optane drives in raid 0). I use the VROC raid as system disk and it works perfectly. I used the U.2 raid card set up to store data and for high-speed access. 

However, the 3rd party U.2 raid card has been a real headache and destabilized the system. It sometimes makes the system lock up and even blue screen etc. took a while to identify it as the culprit. I removed it and replaced it with two simple U.2 adapter cards with 1 single port on each (basically straight through without controller functionality). That systems stabilized. Now 100% stable.

one more thing on RAID cards, I also managed to brick my R6EE a few years ago by flashing a bios update while having the raid cards installed. 

Lessons learned:  Never have any RAID controller card, or ASUS hyper M.2x16 cards, or other storage card installed when flashing the BIOS! Always remove all PCIe RAID cards and all PCIe storage adaptors (even the single u.2 port once should be removed) BEFORE flashing the BIOS. Only after flashing successfully and confirmed successful boot to BIOS screen can the system be shut down and have storage cards be reinstalled into the PCIe slots again.

since I adopted these procedures flashing works flawlessly. took some pain to learn this.

[tistou77]

In my case, it was a PCIe 5.0 card (4.0 compatible), but apparently there are problems with 3.0
I'll put it away until I get a 4.0 or 5.0 platform and test again