ASRock.com Homepage
Forum Home Forum Home > Technical Support > AMD Motherboards
  New Posts New Posts RSS Feed - B450M 30 seconds Bootloop
  FAQ FAQ  Forum Search Search  Events   Register Register  Login Login

B450M 30 seconds Bootloop

 Post Reply Post Reply
Author
Message
Azungu View Drop Down
Newbie
Newbie


Joined: 28 Apr 2019
Status: Offline
Points: 6
Post Options Post Options   Thanks (0) Thanks(0)   Quote Azungu Quote  Post ReplyReply Direct Link To This Post Topic: B450M 30 seconds Bootloop
    Posted: 29 Apr 2019 at 12:18am
Hi,

Helping friend build his first rig:

ASRock B450M Steel Ledgend
Ryzen 5 2600
Nvidia GTX 1660
2 x 8 GB DDR4 3000Mhz

1st boot failed because missed the 8 Pin CPU Power cable

2dn boot failed because because 2 x 4 Pin GPU power cable was not plugged

3rd boot, got the Bios on screen but error message when trying to install Windows 10 from USB stick. Tried several time but same result. Maybe Windows install on USB stick is faulty.

Boot from Linux live CD but error after a few seconds. Tried several times, same result.

The next day, took the rig home and uninstall all component. Motherboard on a text rig (Motherboard cardboard box) with only the 24 + 8 pin power cable. Bootloop every 30s.

Unplugged the 8 pin power cable and no bootloop.

Install GPU (CPU has no internal graphics), RAM (1 stick, 2 sticks, each time different slot, with and without front panel cables, removed GPU and all different combinations. Reset CMOS, removed battery.
Same result: 30s bootloop with the 8 pin and non without, no video in both cases.

I installed all components on a different MB and all run as expected.

Before I return the MB, any ideas of what I can try different? Or what might be the issue?

Thanks for your help!
Back to Top
xhue View Drop Down
Groupie
Groupie


Joined: 17 Aug 2018
Status: Offline
Points: 634
Post Options Post Options   Thanks (0) Thanks(0)   Quote xhue Quote  Post ReplyReply Direct Link To This Post Posted: 29 Apr 2019 at 3:12am
Did you try another power supply?
Back to Top
Azungu View Drop Down
Newbie
Newbie


Joined: 28 Apr 2019
Status: Offline
Points: 6
Post Options Post Options   Thanks (0) Thanks(0)   Quote Azungu Quote  Post ReplyReply Direct Link To This Post Posted: 29 Apr 2019 at 4:03am
Yes, same results with a different Power Supply. And the original works on a different MB. I have a feeling it's the MB. But how to make sure?
Back to Top
alander View Drop Down
Newbie
Newbie
Avatar

Joined: 14 Feb 2019
Status: Offline
Points: 43
Post Options Post Options   Thanks (0) Thanks(0)   Quote alander Quote  Post ReplyReply Direct Link To This Post Posted: 29 Apr 2019 at 4:11am
Are you using memory that is on the supported list?
Is the default memory settings for the slower settings or have you tried setting the memory to slower speed?
I have the memory at the faster speed in A2 and B2 slots. If placed in the A1 and B2 it takes awhile for things to get past bios and before it sets the memory to slower speed automatically on my mother board.
Back to Top
Azungu View Drop Down
Newbie
Newbie


Joined: 28 Apr 2019
Status: Offline
Points: 6
Post Options Post Options   Thanks (0) Thanks(0)   Quote Azungu Quote  Post ReplyReply Direct Link To This Post Posted: 29 Apr 2019 at 4:19am
I have the issue with and without the RAM installed. I cannot even get to the BIOS/UEFI screen to make any changes.
Back to Top
xhue View Drop Down
Groupie
Groupie


Joined: 17 Aug 2018
Status: Offline
Points: 634
Post Options Post Options   Thanks (0) Thanks(0)   Quote xhue Quote  Post ReplyReply Direct Link To This Post Posted: 29 Apr 2019 at 4:43am
All points to the mobo at this point.
Back to Top
Azungu View Drop Down
Newbie
Newbie


Joined: 28 Apr 2019
Status: Offline
Points: 6
Post Options Post Options   Thanks (0) Thanks(0)   Quote Azungu Quote  Post ReplyReply Direct Link To This Post Posted: 29 Apr 2019 at 4:45am
The MB is going back to the store. Will keep you posted.

Thx!
Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.04
Copyright ©2001-2021 Web Wiz Ltd.

This page was generated in 0.141 seconds.