Three sounds appear, then a brief silence, followed by another trio of beeps.
Three sounds appear, then a brief silence, followed by another trio of beeps.
Hey there, I just got this ASUS B150M-A/M.2 board and when I power it up, the fans start spinning and the orange lights flicker. Then I hear this odd beep sequence: three quick beeps, pause, then another three beeps. It sounds like this pattern—Beep, Beep, Beep, PAUSE, Beep, Beep, Beep. I’ve tried a few fixes: I swapped out the RAM from DDR4 2666mhz to DDR4 2166mhz, removed the CMOS battery and held the power button for 30 seconds before replacing it. But the beep code keeps coming up and I can’t access the BIOS. Am I done with this board?
It clearly points to memory problems. Swapping it and still facing the same trouble suggests the motherboard might be faulty, especially if the CPU’s memory controller is on the CPU. Could you test another CPU on that board or try it on a different motherboard (such as a friend’s or another PC)?
Yes, if they're in contact. You can switch off power and unplug the PSU, wait until no lights are on at all, use a solid plastic tool to bend the pin back so you can connect the USB plug. If you hear beeps, it usually means the MB and CPU are okay. So you should still receive the 6 beeps even without RAM.
The listed beep codes correspond to AMI BIOS settings. Many brands adopt this BIOS, so variations exist. Here are the common meanings:
1. DRAM refresh issue
2. Parity circuit malfunction
3. Base 64K RAM problem
4. System timer error
5. Process failure
6. Keyboard controller gate A20 fault
7. Virtual mode exception
8. Display memory read/write test failure
9. ROM BIOS checksum mismatch
10. CMOS battery malfunction
11. Cache memory failure
12. Conventional or extended memory failure
Check connections, reset components, and replace faulty parts as needed.
Hi @Cyberat and @191x7, I took a moment to inspect the CPU. I took it out of the socket and checked all the pins—everything looks fine. After that, I applied some new thermal paste. The bent USB pin isn’t touching any other pins, so it shouldn’t be the issue. It still triggers three quick beeps, then pauses and repeats three more, followed by a complete stop. That’s unusual; I’m not sure if there’s another code or something different happening.