I’m using a Dell PowerEdge T430 server computer and have encountered the following two error messages:
VLT0204 – System board voltage is outside of range. Contact Support.
VLT0304 – CPU1 5V SWITCH PG voltage is outside of range. Reseat CPU.
To troubleshoot, I replaced the CPU and power supplies using components from an identical backup server (same model and brand). However, the errors continue to occur.
Do you have any comments or suggestions for the solution ?
You have done well with your previous troubleshooting steps, but I would also recommend you take the server to its Minimum Hardware Configuration:
Remove all non-essential components.
Leave only:
1 CPU in socket CPU1
1 DIMM in slot A1
1 PSU
No PCIe cards, no drives, no risers (if removable)
Power on and check if the error persist
Since you've already ruled out the CPU and PSU. The persistent voltage errors—especially after minimal configuration and component swaps—strongly suggest a system board failure, particularly in the voltage regulation or power distribution circuitry. You can try to confirm this with swapping out the motherboard witht he known good system.
Let me know what you see and if this helps.
DELL-Chris H
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@DELL-Chris H Hi Chris, I tried checking all the components—power supply, CPU, and memory cards by swapping them from the primary computer to the second backup computer. Everything seems to be working fine, which suggests the error issues are likely with the motherboard.
Now, I’m trying to swap the hard drives from the primary computer into the backup computer to see if we can recover our important software. However, the system isn’t recognizing the primary server computer Windows.
Do I need to configure something in the BIOS? If so, how should I go about it? Any suggestions would be appreciated.
To confirm, (you did mention that you have identical backup server) can you confirm the RAID controller that is used is the same. You said that the system isn't recognizing the primary Windows, do you have the error message? Have you configured RAID on the problem server?
On a side note, I previously experience on other post before that this issue can be from the CMOS battery.
DELL-Joey C
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@DELL-Joey C Hi Chris, We didn’t make any RAID configuration changes on either the problem server computer. We simply swapped the hard disks between the two server computers.
Now we’re facing a new issue. When we tried to boot the primary server’s Windows on the backup server, it wasn’t recognized. To troubleshoot, I changed the BIOS boot mode to UEFI. After restarting, we could no longer access the BIOS settings, and the monitor now shows nothing on screen.
However, I can still hear sounds from the casing, which I think the system is powered on and running to some extent.
Do you have any suggestions? How can I restore or access the BIOS settings again?
I’ve tried pressing F2, F10, and F12 during boot, but nothing appears on the screen.
@DELL-Marco B Hi Marco, Thank you for your message. I believe I’ve finally been able to access the primary server (Windows) by using the backup computer’s motherboard. However, the commercial software I am using from the seismic equipment manufacturer is currently inaccessible and displaying a license warning message followed by the machine ID.
Thus, I have a simple question: Does the commercial software from the company store or memorize specific hardware details from the Dell server computer, such as the serial number, license number, or other hardware-related identifiers?
The service tag is embedded with the motherboard, so while we don't know about your software specifically, it may be due to that. Now when we suggested trying the other board it was just to test if it worked, which helped in identifying the original motherboard as the cause of the issue. What I suggest is that you order a new motherboard, which will arrive without a svc tag assigned, and would allow you to transfer the svc tag to it, so it should be seen as it was before to the software, in my opinion.
DELL-Chris H
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Posted July 15th, 2025 12:01
DELL-Chris H
Social Media and Communities Professional
Dell Technologies | Enterprise Support Services
#IWork4Dell
Did I answer your query? Please click on ‘Mark as Accepted Answer’. ‘Thumbs up’ the posts you like!