In HPE ProLiant Gen10 servers, incorrect AP initialization before microcode loading can cause a variety of issues. Wrong BIOS settings, incorrect firmware updates, or unsuccessful upgrades can all cause this problem. The system will not start if this problem occurs, and a red error LED will be displayed. HPE has issued a firmware upgrade to fix the problem.
Reloading microcode might be a tricky problem, but with the appropriate planning, it can be simple. I’ll try to provide an explanation of how to initialize APs before loading the microcode in this article. Once the updated code is in place, this will ensure that your APs are ready to go.
History of the Problems
The processor on Intel chipsets has been unable to properly initialize before the microcode is loaded. This bug can cause a variety of issues, ranging from the machine not starting up at all to issues with stability or compatibility. The problem can be traced back to adjustments made by Intel in June 2017, when its Coffee Lake processors were released. As a result, major computer manufacturers such as Dell, HP, and Lenovo have issued BIOS upgrades to fix the issue.
What Does the Error ‘AP Initialization Before Microcode Loading’ Mean?
This error message usually indicates that your computer’s processor is damaged. The error message’s ap stands for application processor, and the microcode loading section indicates that the processor’s microcode is incorrect. It’s usually a good idea to take your computer to a specialist to have it fixed if you notice this error message.
Action Items When Found the Error:
On the A320 platform, we found an issue with the AP initialization before microcode loading. When this problem arose, the first thing to do was conduct a system reset. The following is the order of events:
- Turn on the system.
- POST is launched by the system (power on self-test)
- A power cycle is initiated if the BMC watchdog detects a hang.
- The system reboots, but IO issues in the boot block remain.
- The board tries and fails to download and program the microcode.
How to Solve the ‘AP Initialization Before Microcode Loading’ Error? – Easiest Way
On my computer, I was getting an AP initialization before the microcode loading error. I couldn’t figure out what it was or how to solve it. I performed some research and came up with a couple of ideas.
My computer’s BIOS was the first item I updated. This did not solve the problem, but it did help to eliminate one possible cause. I then tried to update the microcode on my computer. This didn’t help either.
After that, I found a solution that included disabling the AP initialization before the microcode loading problem. This one was a little more difficult than the others. To resolve this issue easily, you must reinstall the BIOS. This can be done with the HP BIOS Configuration Utility (BCU).
Quick Tips
Don’t be worried if the AP initialization before the microcode loading issue appears when you try to boot your computer. There are several options for resolving the issue except the previous ones. You can consider giving them a chance before reinstalling.
- st, double-check that the power supply is plugged in and that all wires are firmly attached.
- Connect your USB peripherals to different USB ports.
- Before booting up your computer system, keep your display turned on.
- Pull out all but one RAM stick until POST occurs.
- After that, access BIOS and try resetting it to factory defaults.
- You can also perform a few CMOS resets.
Booting up using a Windows Install media USB drive is also suggested. If neither of these solutions works, the motherboard may need to be replaced.
How do the Error Displays?
This is a common error on HP systems that have been upgraded from BIOS to UEFI mode. When the system attempts to load the microcode, an error can occur. The following is how the error would appear: “AP initialization failed before microcode load”. Check the system event log for more information”
Last Words
The AP initialization process contains an issue that can cause microcode loading to fail. This can be fixed by changing the initialization code to load the microcode in the proper sequence. If the problem continues, contact the manufacturer of your machine for assistance.
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