Z77 Extreme 4 gives error code 9A.

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   Hello! smart members of Asrock forum. With your guidance and help I am sure I will be able to solve this problem.
System Configuration:
Motherboard: 	 Asrock Z77 Extreme 4
CPU:			 Intel 3.4 GHz LGA 1155 Core i5 3570K Processor	
RAM:			Corsair Vengeance DDR3 8 GB
HDD:		Seagate Barracuda 2 TB Desktop Internal Hard Drive

For the last three days, the system does not pass the POST stage. It gives a 9A error(USB Initialization is started). I am not able to enter BIOS even. The LED screen remain switched off. 
If I start the system after 1 hour(Clear CMOS, unplug the power cord completely), it successfully pass the POST stage and windows loads, however even the windows got corrupted somehow and gets stuck at recovery options. The Keyboard hangs in recovery stage and cannot select any option.
After this ordeal, I have to restart the system and then again it gives 9A error. I have googled thoroughly for any solution and tried them all(I guess), still no good news.

Friends, this is frustrating. I request you to provide some ideas to solve this.
Should you require any detail, please ask me.

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theelint Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 07 Sep 2016 Status: Offline Points: 4	Post Options Post Reply Quote theelint Report Post Thanks(0) Quote Reply Topic: Z77 Extreme 4 gives error code 9A. Posted: 07 Sep 2016 at 3:07am
	Hello! smart members of Asrock forum. With your guidance and help I am sure I will be able to solve this problem. System Configuration: Motherboard: Asrock Z77 Extreme 4 CPU: Intel 3.4 GHz LGA 1155 Core i5 3570K Processor RAM: Corsair Vengeance DDR3 8 GB HDD: Seagate Barracuda 2 TB Desktop Internal Hard Drive For the last three days, the system does not pass the POST stage. It gives a 9A error(USB Initialization is started). I am not able to enter BIOS even. The LED screen remain switched off. If I start the system after 1 hour(Clear CMOS, unplug the power cord completely), it successfully pass the POST stage and windows loads, however even the windows got corrupted somehow and gets stuck at recovery options. The Keyboard hangs in recovery stage and cannot select any option. After this ordeal, I have to restart the system and then again it gives 9A error. I have googled thoroughly for any solution and tried them all(I guess), still no good news. Friends, this is frustrating. I request you to provide some ideas to solve this. Should you require any detail, please ask me.

theelint Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 07 Sep 2016 Status: Offline Points: 4	Post Options Post Reply Quote theelint Report Post Thanks(0) Quote Reply Posted: 08 Sep 2016 at 4:11am
	Dear Friends..I am still waiting for your help. Any idea is as good as a solution as I have run out of ideas.

wardog Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 15 Jul 2015 Status: Offline Points: 6447	Post Options Post Reply Quote wardog Report Post Thanks(0) Quote Reply Posted: 08 Sep 2016 at 4:21am
	9A relates to memory. That could lead to HDD corruption too. Is your Corsair 8GB two 4GB sticks or a single 8GB stick? If it's two sticks I'd say it's time to play swaparoonie using each individual stick and hope you find the one that's gone bad. Assuming this relates to a dead or dying stick.