Error with voltage, no startup or boot, CPU light is illuminated
Error with voltage, no startup or boot, CPU light is illuminated
Specs-
Motherboard- ASUS prime z270-a
PSU- EVGA nex650g
CPU- i7700k
First boot was a trial in BIOS where I enabled CPU overclock and applied the right settings for cooling. Voltage rose by 15%. After restart, I received an over-voltage warning. The system briefly entered BIOS before powering down. Restarting again caused CPU and DRAM to flash in sequence but failed to boot properly. I reset the BIOS by removing the battery. Now the CPU flashes on startup and remains active. Fans and LEDs function correctly, though I still can’t access BIOS. I’ve reconnected the CPU and tested moving RAM, but nothing changed.
Here are the details you provided:
The motherboard is an ASUS Prime Z270-A, the power supply is an EVGA Nex650G, the CPU is an i7700k. I first booted up my PC and entered BIOS to adjust settings. I enabled CPU overclock and applied the correct cooling options, which increased the voltage by 15%. After a restart prompt, I encountered an over-voltage error. The system briefly went into BIOS before shutting down.
I restarted again, and the CPU led and DRAM led flashed in sequence, but nothing happened—no beeps or boot. I reset the BIOS by removing the battery. Now, when I start up, the CPU LED flashes once and stays on. The fans and LEDs are working, but it still won’t boot into BIOS. I reinserted the CPU, but the issue persists. I also tried breadboarding the motherboard and rechecking all connections, even moving the RAM.
Did you unplug the computer when removing the CMOS battery? How long did you leave it out? I assumed there was a CLEAR CMOS jumper on the motherboard. If that’s the case, unplug it and short the jumper.
burnhamjs :
Specs-
Motherboard- ASUS prime z270-a
PSU- EVGA nex650g
CPU- i7700k
First time I powered on my PC, I opened the BIOS and adjusted the settings. I enabled CPU overclock and selected the right cooling configuration. Voltage increased by 15%. After a restart prompt, I encountered an over-voltage error. The screen briefly entered BIOS before shutting down.
I restarted again; the CPU and DRAM flashed in sequence but nothing happened—no beeps, no boot. I reset the BIOS by removing the battery. Now, when I try to start up, the CPU LED flashes once and stays on. All fans and LEDs are functioning, yet it still won’t boot into BIOS. I reinserted the CPU, but the issue persists. I also connected my motherboard to a breadboard, rechecked all connections, and even moved the RAM.
Did you disconnect the CMOS battery when removing it? How long did you leave it out? I assumed there was a CLEAR CMOS jumper on the motherboard. If that’s the case, unplug and touch the jumper again.
Here are the details you provided, rewritten with different wording while keeping the same meaning and structure:
The PC specifications include a motherboard from ASUS Prime Z270-A, a power supply unit from EVGA Nex650G, an i7700k CPU. I first booted up the system and entered BIOS to adjust settings. I enabled CPU overclock and applied the correct cooling configuration, which increased the voltage by 15%. After a restart prompt appeared, I followed the instructions and encountered an over-voltage error. The screen briefly transitioned into BIOS before shutting down completely.
I restarted again, with the CPU and DRAM flashing in sequence, but nothing happened—no beeps or boot attempts. I reset the BIOS by removing the battery. Now, when I power on, the CPU LED flashes once and stays illuminated. All fans and LEDs are functioning properly, yet it still fails to enter BIOS. I reinserted the CPU and continued testing, but nothing changed.
I also connected my motherboard to a breadboard and rechecked all connections. I moved the RAM slots and tried different configurations.
Could you confirm if you unplugged the computer when removing the CMOS battery? How long did you leave it out? I assumed there was a CLEAR CMOS jumper on the motherboard. If that’s the case, unplug and touch the jumper again.
It's also worth considering if the CMOS battery failed during your jump. You might want to get a replacement just in case, even though it's a fresh motherboard.
After the restart, the BIOS screen appeared, the CPU temperature was recorded at 91°C, and then the system crashed. I was worried about a hardware problem. Could it be that the motherboard or CPU was damaged? I don’t have any certain answers.
SgtScream asks if it's possible to reach the bios. The response is that the fans and LED lights activate, but there is no monitor feed available.