HDD 2.5'' IDE - Help

[DCF]

(02.07.2016 15:20)SWAT писал(а):  By first screen I think you create logical partition instead of primary.

I've created primary partition, it's shows me in HDD properties that it is primary.

What software do you use to format HDD for Dreamcast?

(02.07.2016 15:20)SWAT писал(а):  By second screen (bootloader), seems it bad solders or HDD...
Or maybe you skip boot animation? Sometimes HDD doesn't have time to startup if you skip boot animation immediately.

I don't think it is bad solders. I have 2 XCKDIY HDD Boards, and both should work fine. The LED blinks and I can hear HDD is spinning.

People have reported that WD Scorpio Blue works fine with Dreamcast.
I tried with skipping boot animation and no skip, it's the same result. It gives me Unknown filesystem 0x07