[HELP] Asus G70S Boot broken (not modded Bios)

Hi,

i have a big Problem. I have used Ultimate Boot CD 5.3.9 and bootet this with USB Driver from USB Drive

The Boot called UBMPCI (optimal)

After i load the USB Drivers i get this Error Message:

LBACACHE flush: write error.2080/LBA#0101
dos mem corrupt, first_mcb=028a
PANIC: MCB Chain Corrupt
System halted.

Now my Boot is Corrupt.

I have 2 HDD Drives SATA 0 and 1

Every Time i try to Boot from USB or DVD to install Windows 11 the USB or DVD reboots the System (directly after NVRAM Check) after this reboot HDD on SATA 1 is lost in Bios.
HDD on SATA 0 is fine.

I have to unplug Battery from Laptop and repower it on to have HDD drive on SATA 1 is recognized.

Same thing when i have installed Windows 11 on HDD Drive plugged on SATA 0 it boots twice on Startup. First time it SATA1 HDD is listed in Bios then NVRAM Check and a reboot and then SATA 1 HDD is lost. After the lost SATA 1 HDD it Boots from SATA 0 HDD or USB or DVD.

I think my NVRAM Boot Order is corrupted ?!?

The only Flash Programm what works is Asusflash2 for DOS and this won´t reflash NVRAM only the Bios Main Blocks.

I need some help here please

:Update: HDD´s are not broken S.M.A.R.T Values are fine. I tried 2 another HDD´s but the Problem still appears.