Gigabyte P55A-UD3 won't boot up

[lsquare]

There's a problem guys. For some odd reason, my motherboard is now stuck hanging in the POST screen.

So this is what happened. Earlier today, I put Windows 7 on my USB flash disk to install on my computer. I went to the BIOS to change the boot order to USB HDD, but for some odd reason the motherboard won't recognize the flash drive and boot from it. So I went to the hard drive boot list to change the order so that the USB flash drive is on top of my SSD. Once I restarted the computer, everything booted up fine and Windows 7 proceeded to install. Once the installation was completed, the computer restarted as normal, but now it just hangs after the POST screen. It's at the Serial ATA AHCI BIOS list and it shows the first device on controller bus#00, which is my blu-ray reader. It just hangs right there. It doesn't list the SSD or any other components. I tried to press "delete" to access the BIOS, but it doesn't work. I restarted the computer many times and even removed the flash drive, but the mobo will attempt to load, but it'll eventually get stuck on that screen.

So what do I do right now?

 

[lsquare]

Help?

 

[lsquare]

This is what I see on the screen of my desktop as it hangs upon booting up the Serial ATA ACHI BIOS

Serial ATA AHCI BIOS, Version iSrc 1.20E
Copyright (c) 2003-2008 Intel Corporation 23
**This version supports only Hard Disk and CDROM drives **
Please wait. This will take few seconds.

Controller Bus #00, Device #1F, Function#02: 06 Ports, 03 Devices
Port-00: CDROM, ATAPI iHOS104 (this is my blu-ray reader)

 

[lsquare]

Wow, I'm so surprised that no one here has figure this out or even experience this problem. After spending hours on this problem, I am now confident that the problem lies in the fact that the Gigabyte P55A-UD3 motherboard has a problem with my Liteon iHOS104 Blu-Ray reader in AHCI mode. How do I know? Everything works when under IDE mode, but it'll hang if AHCI is enabled and only by resetting the CMOS, can I access the BIOS.

Over at Anandtech, one of the reviewers for the Gigabyte H55-USB3 experienced the same problem as me:

Setting AHCI mode for SATA ports results in not being able to boot from our Pioneer 215-DBK SATA DVD drive (IDE mode works fine). Fortunately there is a workaround for this, press the pause key during the POST sequence just before the drive boot sequence starts, let the board pause for a few seconds and then resume. We’ve reported the problem to Gigabyte and a fix BIOS should be up on the support site shortly, so you won’t need to work around if you flash over.

Gigabyte H55N-USB3 : Mini-ITX done the Gigabyte way... - AnandTech :: Your Source for Hardware Analysis and News

Unfortunately, pressing the pause key didn't help me at all. The screen will pause and then nothing will materialize as I wait.

 

[amenx]

This is what I see on the screen of my desktop as it hangs upon booting up the Serial ATA ACHI BIOS

I have the same problem on P55-USB3 board. My bios is updated to latest and it gets stuck with same message. Cant enter bios with delete, must crawl under desk with flash light and small screw driver to reset cmos. Any solution? Will I have to do without AHCI for this board to even work?

 

[andrewyu77]

Hi! It seems like you got two obvious options here:
1. Since you've informed that the blu-ray drive has problem in AHCI mode, and I assume if you don't use the blu-ray drive then there's no such problem in AHCI mode? Is it possible to use another blu-ray drive?
2. In my opinion, I think this is more likely as an compatibility problem, maybe contact GIGABYTE for support directly is faster?