Sabertooth Z77 Issues

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Joined
25 May 2017
Posts
2
Ok guys! I really got a hard case.

After moving my PC I tried to start it as it was running at the old apartment.
I didn't start properly. So I decided to reset the BIOS.

System:

PSU: bequiet 680W
MOBO: ASUS Sabertooth Z77 BIOS Rev. 2104
CPU: Intel i7 3770k
PCIE1: GTX 670
PCIE2: GTX 670
RAM: 32GB Vegenance
SSD: Samsung 840 Pro

SATA Mode AHCI
CSM disabled (UEFI only)
Monitor is connected over iGPU with HDMI.
Hyper-Threading and Virtualization Technology disabled
ASUS Enchantment MultiCored option disabled
Rapid Start Technology disable
No OC set.

After doing that I still couldn't manage to boot into a SATA device.
I tried various things. Here are the important issues and going-ons.

Only USB connecte
1. If I only connect a bootable USB stick. (Linux or Windows) I'm able to boot into it.

One SATA device connected and Bootable USB Stick
2. If I only connect the SSD with my Windows 10 Partition on it. It will be recognized in the BIOS but it will fall into a boot loop if I try to boot from the SSD. (I can see that it tries to start up the Windows repair)
2.1 Booting from USB Stick works till OS initializes then reboots. on a Linux distro (Repair Boot Stick) it does that at the point it tries to mount the discs.
2.2 I once managed to boot the Linux distro with the SATA device connected and it also was recognized by Linux. Unfortunately I wasn't able to rebuild that situation
2.3 Any other SATA device unlike the SSD with Windows 10 will cause a boot loop were I'm not even able to get into the BIOS.

Two SATA device connected
3. The Motherboard falls into a boot loop. Not even able to get into BIOS.

I'm a IT system engineer and dealt with a lot of problems. But never saw something like that and I'm really desperate. I don't have any ideas left.

Please give me a tip for other options

Thanks
 
Hmmm, bit of a stab in the dark, but what options are available in the boot from section? I noticed Windows 10 set some weird new boot manager option that I had to select in order to boot when my bios failed on me. Mine is a gigabyte z77 board.
 
Depends on what BIOS is set. If CSM disabled I only got UEFI Boot options. If I'm enabling it I also can choose normal BIOS Boot.
But it doesn't matter same pattern on any bootable USB device. Starts to initialize OS (I tried Ubuntu, Linux, Repair Boot Disk and SLAX) and reboots while initialization.
Couldn't figure out at which stage so far.

UPDATE:

After I managed to get into Ubuntu with the SSD connected. I saw the bootflag was missing at that disc. Checked the bootflag and now I got a new error. After restarting PC and trying to boot from SSD I got this Windows Error.

0xC000000F
/Boot/BCD

MBR contains errors. This can cause after HW changes....

Still not able to connect a Second SATA device
 
Last edited:
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