Long cold boot on X570-F Gaming with Ryzen 9

[P1ratRuleZZZ]

Hello. I've been facing this issue since December 2020.

MB: Asus x570 f gaming (bios - 4201 latest for today)
CPU: Ryzen 9 5900x (5950x) - stock frequencies
RAM: DDR4 3600MHz G.Skill Ripjaws V (F4-3600C18D-64GVK) (2x32Gb KIT) - 2666mhz in stock, no overclocking at all, Everything is in Auto in bios (double rank memory, Hynix chips)
GPU: RTX 2080 Ti 11gb
SSD: WD Black WDS200T3XHC 2ТБ
PSU: Silencer Mk III 850W

Cold boot takes up to 3-5 minutes(!!!). I press the button, see asus logo, then in ~5 minutes I see bios POST messages and loading normally. If I reset from windows/ubuntu - it goes fast (fastboot works). If I shutdown from windows/ubuntu - next power on is also fast. But If I press F2 or DEL button to go into BIOS settings, I have to wait another 5 minutes.

I've tried other RAM (unfortunately - on Hynix chips too) - same behaviour. Tried rams of 32gb and 16gb, tried to use only one ram and tried to use different slots - same thing.

I've tried another processor - 5900x and 5950x - same behaviour. Though ryzen of previous generations works fine! I've tried Ryzen 3 3xxx series - very fast even on cold boot.

I've tried to load withouth NVMe - same behaviour.

Does anybody know what's happening? Is it an issue with motherboard? Should buy a new one (probably not from Asus ) or it can be ram issue?

[P1ratRuleZZZ]

Update: The issue was caused by a hard drive:

The HGST HUH728080ALE604 8TB drive initialization takes long time on cold boot. Though while working it behaves normal. I've used a separate Pci ex4 sata controller to connect this drive and now it is loading quickly even if fastboot is disabled.

[RedSector73]

Might be worth trying a new SATA cable for use on the motherboard and see if the issue persists with said HDD.

[P1ratRuleZZZ]

Might be worth trying a new SATA cable for use on the motherboard and see if the issue persists with said HDD.

Yep, tried that already, it didn't help. I will be looking forward to purchase a new hard drive anyway and this will go to NAS server, so will check if problem persists with other large size drives.