Asus z97 Deluxe Boot_Device LED error code 99

[Mark Kowal]

Hello there,

I will start with my computer spec:

Mobo: Asus z97 Deluxe
GC: Gigabyte GTX 980 G1
RAM: 16GB TridentX 2400
CPU: i7 4790K 4.00
HDD: 256GB SSD + 1TB HDD.
Power: 750 Watt Corsair
Water cooler: Kraken X61
+ there is a Flash drive in with Win7 and a USB from my keyboard

Starting with all different problems like A2, FE and few other numbers I somehow managed to overcome the odds. The biggest problem started yesterday when I tried to overclock my RAM. (Let me add that I sometimes could/couldnt log to bios). BIOS asked to reboot my computer and after that it was impossible for me to even see the starting screen. I've tried switching all the SATA cables, power cables, removing/replacing my RAM, switching/unplugging USB devices but nothing worked.

The thing I've noticed is when I look on my mobo when it tries to boot, when it comes VGA_LED my graphic cards probably shuts down and fans slows down immediately for a sec (blue WINDFORCE title blacks out and goes blue in less than a sec) and after that it stops on Boot_Device error with 99 code ( it is on 64 for a while, A2 for less than second and then 99 all the time).

It is a brand new computer (bought it yesterday) so I dont have any spare parts to work with (was using a laptop). Is it possible that my graphic card is broken? (fans are on, it is working all the time - before and after this 'little shutdown'). Or is is something else?

Thanks for reading and hope someone will know the solution.

Best regards

 

[alexoiu]

Hi, Try removing the card, connect the monitor to the onboard and see if still 99.
Or, if you bought the PC pre-assambled, I suggest returning it to be repaired.

 

[Mark Kowal]

Hi, Try removing the card, connect the monitor to the onboard and see if still 99.
Or, if you bought the PC pre-assambled, I suggest returning it to be repaired.

Thanks for a fast reply alexoiu.

To begin with - PC wasn't pre-assembled. I bought everything on my own.

Second case - card is removed and I can log on to BIOS but still with 99error. Tried to place my card in different PCI-E slot but it was the same as before. It is the GC then? It's really weird because for few hours everything was running perfecly untill I tried to OC my memory.

Unless it's something else and I'm just worried about the card.

 

[alexoiu]

You're welcome.
Try clearing the CMOS (unplug the power cord and remove the CMOS battery for a minute, or use the CLR CMOS switch). Restart still with no card and see if still 99.

 

[Mark Kowal]

Big thanks alexiou. After clearing CMOS I had the AE boot error for some time (no video display) but after switching cables, removing 1 hard drive and making sure everything is pinned properly, my mobo booted to BIOS and now I can install the operating system.

Have a nice day!

 

[alexoiu]

You're welcome. Glad you've solved it.

 

[exavior75]

For me this was not an error at all. 99 did appear on the bios and I did get the beeps and monitor did not display, but it actually did post and everything was fine; all I had to do was unplug the HDMI and connect my monitor through DVI instead (VGA should work too).