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SRock A320M-HDV R3 KO after update BIOS
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MistizioFriend View Drop Down
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    Posted: 23 Feb 2023 at 5:55pm
This morning I wanted to update the BIOS. The installed version was 3.6 and the latest version was 7.4. The version after 3.6 was 7, and in order to install 7.4 it was necessary to first install 7 as requested by the manufacturer. Once version 7 was installed, there were no problems and the PC started correctly. During the installation of version 7.4, there were no problems either, but now the PC won't start. Only the fans turn on and there is no power even to the USB ports. It's dead. Is there a solution? Thank you.
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The processor is an AMD A series A10-9700.
I have already tried resetting it via jumper (clearing CMOS) and by removing the battery, but it still isn't working.
Versions 7 and 7.4 of the BIOS supported the same processors, and the PC started correctly with version 7.
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Points: 23228 		Post Options Post Options   Thanks (2) Thanks(2)   Quote Xaltar Quote  Post ReplyReply Direct Link To This Post Posted: 24 Feb 2023 at 6:10am
Oh no, the bios update removed support for your CPU.

Quote
*This BIOS doesn't support Bristol Ridge CPU, do NOT update this BIOS if Bristol Ridge CPU is being used.
**It requires to update BIOS to 7.00 before updating this version.
*** User will not able to flash previous BIOS once upgrading to this BIOS version.


Quote
AM4     A10     A10-9700 (AD9700AGM44AB)     65W     Bristol Ridge     3.5GHz     2MB     A1     All


You will need to upgrade your CPU to a Ryzen CPU.

Edited by Xaltar - 24 Feb 2023 at 6:10am
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Originally posted by Xaltar Xaltar wrote:

Oh no, the bios update removed support for your CPU.

You will need to upgrade your CPU to a Ryzen CPU.


Could I put in the right processor and downgrade the BIOS?
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Originally posted by Xaltar Xaltar wrote:

Oh no, the bios update removed support for your CPU.
You will need to upgrade your CPU to a Ryzen CPU.



Can I perform a downgrade if I use an AMD Ryzen 3 4100 processor?
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eccential View Drop Down
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Points: 4450 		Post Options Post Options   Thanks (1) Thanks(1)   Quote eccential Quote  Post ReplyReply Direct Link To This Post Posted: 24 Feb 2023 at 8:04pm
You likely won't be able to revert to older BIOS, other than using extreme methods, such as desoldering the ROM chip and programming it using an external EEPROM programmer.

AsRock's BIOS support page clearly states:
*** User will not able to flash previous BIOS once upgrading to this BIOS version.
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Points: 80 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MistizioFriend Quote  Post ReplyReply Direct Link To This Post Posted: 24 Feb 2023 at 8:19pm
Originally posted by eccential eccential wrote:

You likely won't be able to revert to older BIOS, other than using extreme methods, such as desoldering the ROM chip and programming it using an external EEPROM programmer.

AsRock's BIOS support page clearly states:
*** User will not able to flash previous BIOS once upgrading to this BIOS version.


Thank you
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Xaltar View Drop Down
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Points: 23228 		Post Options Post Options   Thanks (1) Thanks(1)   Quote Xaltar Quote  Post ReplyReply Direct Link To This Post Posted: 25 Feb 2023 at 1:53am
Unfortunately, short of taking the board to an expert and having the BIOS ROM
chip removed and reflashed, the only option is either a new CPU that is compatible
with the new BIOS or a new motherboard.

This is why I recommend people don't update their BIOS unless they actually need to.
To support a CPU upgrade, to fix an issue that the new BIOS is meant to resolve
or a critical security update. Otherwise, if the system is working well, leave it
be.
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