LED on Asus ROG STRIX B450-F shines even after RAM swap Despite the RAM change, the orange LED remains active.
LED on Asus ROG STRIX B450-F shines even after RAM swap Despite the RAM change, the orange LED remains active.
Hi! You’re working on upgrading your PC and ran into an orange LED on the CPU after installing new RAM. It seems there might be an issue with the memory. You tried different sticks and configurations, but it still lights up. Your thoughts are: what should you check next before deciding to replace the motherboard?
I understand. There shouldn’t be any hidden components. You can purchase a regular CMOS battery without issues. The extra cables suggest it might not be designed for direct motherboard installation. Regarding the DRAM connection, it’s unclear how that would cause a problem unless there’s a specific interface involved.
If the BIOS configurations are incorrect, adjusting those memory-related settings can resolve the issue. Leaving a computer unplugged will deplete the battery to preserve those settings. After replacing the battery properly, the system should begin its memory setup when powered on, though this may take a while. Be gentle and allow it to complete. If needed, modify any BIOS parameters carefully—other changes might cause unexpected behavior, but it's worth experimenting.
Acquired a fresh battery and installed it, then allowed it to operate for five minutes—no noticeable difference, but it remained bright orange. If this offers any clues, none of my fans are slowing down as they would after a short boot-up on a working system. My GPU's cooling fans only activate briefly before stopping completely. Uncertain if this relates to overlooked BIOS configurations or simply indicates the device isn't POSTing properly. I didn’t include that detail in the original entry. Updated September 19, 2025 by Taxikel Added more information about GPU fans.
You're unsure about next steps. You've already tested various RAM slots and used only one RAM module. After resetting the CMOS, did you also use your previous RAM? Also, have you disconnected the power cable? The PSU provides minimal power when the PC is off, so you should remove the cable or switch off the back panel for a few minutes without battery to perform the CMOS reset.
Certainly! It sounds like you're considering upgrading your components. Would you like advice on what to look for when choosing a new motherboard?
I'm not familiar with AMD boards, but I've been using Intel for a while now. I've heard mixed things about AMD's memory controllers—sometimes they can be tricky. They're built into the CPU, so maybe someone here can offer some advice. Alternatively, you could try getting help from a repair shop.
I don't think it's too bad, but their performance isn't as fast as Intel CPUs do. The DRAM issue seems to be affecting memory. RAM sticks, the motherboard, and CPU all belong to the memory system. After reviewing what you've already done, I recommend trying to reinsert the CPU into the AM4 socket—just move the cooler or bump the case. Another idea is to check your parts one by one on a different machine. There are many AM computers available, so someone might be able to assist with these tests. Good luck!