Intel Motherboards : Asrock Taichi x99 - Boot problem

Author: parsec
Subject: Asrock Taichi x99 - Boot problem
Posted: 24 Nov 2016 at 10:47am

philophob wrote: Hi all, I am having a boot problem with 6850k and Asrock Taichi x99 board. Very first time booting the computer, everything worked yet when I rebooted the system, the board was crapping out with SATA/IDE error (A2) and sometimes PCIe error (forgot the code) according to the manual. So I tried to reset the CMOS by taking the battery out and also flipping switch on the back of the I/O panel. (also the by flipping switch on the board itself as well.) But I just won't get a display. My monitor says no signal. Here is the dilemma. I think the system is booted up fine but I get no display. I check my keyboard and it is responding and there is no error code flashing on the board. Just no display thru my monitor. I have another desktop and I triple-checked the HDMI connection cables (I have 3 HDMI cables) but everything works. So I just let the computer idle even though I don't have a screen for maybe 10-15 minutes then voila, I get a screen saying there is no OS installed on the SSD driver I installed. So I rebooted the computer with my Windows 10 USB to install the OS. But again I don't get any display yet my keyboard is responding. (i.e. Caps lock turns on/off and also NumLock key turns on/off) My keyboard has LED lighting and it lights up via USB connection so I am assuming the board is operating properly, right?  Also all the fans are working. So this is driving me insane.  I checked all the power cables and they are all connected as they should.  I am just scratching my head what else I can try. Please help!

Since you don't get any video signal to the monitor except after a long wait, apparently, why do you not suspect the video card as a potential problem?

Have you checked the video card, or tried another video card in that PC? Is the fan(s) spinning on the video card when the PC is on? Do you only have HDMI cables to use with your monitor and video card?

I would remove and reseat the video card, and be certain the locking tab on the PCIe slot is in the locked position. You could also move the video card to another PCIe slot to test if you are having issues with the PCIe lane you are using now.

Not being able to find a bootable drive on the PC is a message that would appear very early in the startup cycle of any board.

About your OS drive, did you try using a new SATA data cable? SATA data cables are very cheaply made, and only designed for a few dozen removal and insertion cycles at best. I thrown out so many over the years.

The Dr Debug display shows POST codes, which are not error codes unless one remains constantly on the Dr Debug display. That code would be the POST test that failed. SATA drive POST check "Ax" codes might be displayed when you are using the UEFI/BIOS UI.

Do you have a POST beep speaker in the board, and the POST beep speaker option enabled in the UEFI?

A basic hardware list would help, the OS drive at least, video card, PSU, memory (exact model number) is always helpful.