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B450M HDV R4.0 No Power

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Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
Printed Date: 25 Jun 2022 at 9:08pm
Software Version: Web Wiz Forums 12.04 -

Topic: B450M HDV R4.0 No Power
Posted By: OkiPanama
Subject: B450M HDV R4.0 No Power
Date Posted: 11 May 2022 at 12:25pm
HI. Since I bought this MoBo 2 years ago, it's been restarting itself randomly, always showing critical error kernel power 41 from the event viewer. A few days ago, it suddenly restarted, failing to recognize the ssd storage. When I reconnect everything back again, nothing goes on, no power, no start. Only things connected to usb 2.0 ports got power. PSU was tested and even replaced            

CPU: Ryzen 3200G
GPU: R7 360
RAM: Hyper X 16 GB
PSU: Enermax 600W
MoBo: ASRock B450M HDV R4.0
SSD: Western Digital 128 gb

Now checking the MoBo with a friend, we discovered that touching a piece located next to the CMOS battery" rel="nofollow - with a code CX1 while making ground(with the floor),CPU and Case fans begin to run but shows no video or response from power switch button.
Any clue what does this CX1 piece? Please Help          

Posted By: Xaltar
Date Posted: 11 May 2022 at 2:55pm
That is a crystal oscillator used to control the system's clock timing. It could
have gone bad. It should have numbers on the part itself if you remove it (desolder)
from the board. It shouldn't be too hard to replace with a steady hand, some solder
and a soldering iron.


Posted By: OkiPanama
Date Posted: 13 May 2022 at 9:43am
Thanks. I will replace it from other motherboard and see what happened

Thanks again for your support!   

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