New motherboard and CPU detected. CPU error light illuminated.
New motherboard and CPU detected. CPU error light illuminated.
I operate with the Biostar B760MZ-E PRO and i5-12600k along with Kingston Fury RAM @ 6000MHz. When I power up the system it produces a brief electrical noise. The blue illumination remains active but the machine doesn't start. Disabling the blue light requires holding the power button for an extended period. Once activated, a brief red indicator appears signaling a CPU issue, marking the first of four warning lights. I haven't attempted a CMOS reset yet; I plan to try it later, though I'm uncertain it will resolve the problem. My suspicion is the issue may relate to the ATX_12V_2X4 connector—providing +12V to the CPU power circuit. If the CPU power connector uses four pins, connect it to Pin 1-2-5-6 of that interface. It might need an eight-pin adapter. I've experimented with two four-pin connectors in various configurations, but none worked. My old power supply hasn't caused problems with my previous board using the same unit. I'm not confident the CPU is seated correctly, but it's possible it could be upside down. This seems improbable since I followed the most logical connection method. One final consideration is whether the front panel connectors for power and reset were installed properly; I've tested several combinations without success. What’s the most probable reason for this overall malfunction? Could it be a faulty CPU or motherboard?
I will review this again later to confirm, but I expect the CPU isn’t connected correctly. Apart from the CPU issues or possible connection problems, I have thoroughly checked all other potential reasons so far. None of my troubleshooting actions affected the situation except for these: JCMOS – Clear CMOS jumper. The jumper helps reset the BIOS safe setting and CMOS data. Follow the instructions carefully to prevent harming the motherboard. Steps to clear CMOS: 1. Disconnect AC power. 2. Set the jumper to “Pin 1-2 short”, using a metal tool like a screwdriver to touch the pins. 3. Hold for five seconds. 4. Once CMOS values are cleared, ensure the jumper is “Pin 1-2 open”. 5. Restore AC power. 6. Apply optimal defaults and save settings in CMOS. After completing these, I reconnect power and notice something unusual. The PC’s blue light activates even though it hasn’t started. I suspect this isn’t the expected behavior when simply plugging in without turning on. When I power on, a brief red flash appears, signaling a CPU issue. Pressing the power button for an extended period extinguishes the blue light. Clearing the CMOS jumper again doesn’t resolve the problem. Now the blue light turns on unexpectedly after reconnecting, despite never having powered it on. This strongly suggests a motherboard fault. I’m likely going to return it for a defect check. I searched but didn’t find anyone reporting this exact issue, which is puzzling. Another possibility is incompatible RAM with the board, though that would be surprising given the Kingston model and supported speeds. The board supports up to 6400 MHz, while my RAM is 6000 MHz.
The RAM is KF560C40BBK2-16 It is listed as compatible with the motherboard: https://pangoly.com/en/compatibility/bio...-e-pro/ram Biostar itself doesn't say it is supported: https://www.biostar.com.tw/app/en/mb/int...orysupport If I were to make a guess I would say there is only a 0.1% chance that the problem is caused by the RAM. I would say there is a 75% chance that the motherboard is faulty, and a 25% chance that the CPU is faulty. Please let me know if you have any tips on how to fix this.
He recently received a CPU fault alert (13500) and it turned out a RAM module failed. Have you checked just one of those in the farthest slot from the CPU? I don’t see that mentioned in your previous messages. If it doesn’t work, try swapping with another module in that same slot. I’m aware 12th generation models may not support DDR5 at higher speeds, but you should be able to boot with default settings.
I had already attempted this before. Right now the only option I can consider is removing another PC and installing a DDR4 module to verify functionality. Should that also fail, we might conclude there are just two remaining possibilities: a faulty CPU or a defective motherboard. If neither holds, it suggests either a defective CPU or a bad board.
On the other hand, my experience shows it can run at 6400 with XMP enabled on a Z690 Extreme.
I also tried GSkill SJaw at 6400 on a ROG Z690-E with an i7 12700K by activating the XMP profile from the link provided. It supports dual channel DDR5 up to 6000+OC, and can handle memory capacities ranging from 8GB to 48GB per module. The board also backs Intel Extreme Memory Profile (XMP) for optimal performance.
It apparently only supports DDR5 so I can't actually test if any other type of RAM will work. With the red error lights, there is a distinction between the DRAM light and the CPU light. The DRAM light is not lit but the CPU light is lit. I think that with a RAM problem, the DRAM light would be on rather than the CPU light. The motherboard seems to say it is not a RAM problem, which leaves only two other options.
I misplaced the ATX power connector on the motherboard. You need to click two blocks together, but I missed that step. The second block ended up in the wrong orientation. It was a simple oversight I hadn’t made before. Now everything functions properly as you can see.