Red EZ Debug CPU light is on but the system doesn't boot after trying to overclock.
Red EZ Debug CPU light is on but the system doesn't boot after trying to overclock.
Hi, I'm using a Ryzen 1600x, rx480, 16gb ram, a samsung 850 evo 500gb, a toshiba 3tb hdd and an MSI B350 Tomahawk Arctic built about a year and a half ago. I checked the BIOS today and noticed I hadn't updated it recently, so I flashed it without issues. After booting into Windows, I tried overclocking by setting XMP to 3200mhz but faced problems. The PC only showed the CPU light and didn't respond at all. I reset the system, but whenever I power it on the CPU light stays on and the system doesn't boot. I've tried clearing the CMOS by removing the battery, but it didn't help. Any advice? Most other posts seem to be about new builds...
Thanks, Dan
After adjusting the memory to 3600mhz and keeping the voltage at auto, I attempted to recreate the previous failure with an XMP profile. The PC refused to start, initially showing the CPU light before the memory lights appeared. The CPU fan increased its speed but remained constant. Both lights stayed illuminated until power was cut. The monitor displayed nothing. During a regular boot, both CPU and memory lights activated, followed by the screen indicating GTX 1050 and transitioning to a VGA light. After the VGA light, the boot light flashed briefly before the BIOS splash screen appeared. The fan speed fluctuated during normal startup. After the failed attempt, I reset the CMOS and successfully booted again.
Was die PSU eingeschaltet oder ausgeschaltet, als du die Batterie entfernt hast? Offensichtlich, denn Ryzen benötigt sie beim Entfernen angeschlossen. Das ist das Gegenteil von allem, was man bei anderen Computern macht.
I'll attempt it as soon as possible tomorrow, away from the computer right now. However, when I removed the battery it was unplugged and off... I didn't realize Ryzen worked that way, so I'm definitely going to try it, thanks. Are you correct in thinking I could short something if the PSU remains on?
I only tested your method and nothing changed... I'm still only seeing the CPU light, all fans and lights remain active.
Many recent motherboards include a visible CMOS jumper close to the CMOS battery. Check your user manual for its location. Connect the two pins while the PC is powered on but turned off, which will reset the CMOS and remove the failed overclock. The battery trick doesn't work on my MSI B350 board, so I've performed the pin jumping several times.
The transparent CMOS switch is located on the right side of the battery, situated among the PCIe connectors.
Thanks for the suggestion but that didnt work either, Theres a video of an attempt in the link below along with a pic of the EZ Debug light, I also didnt have the proper junper cap but just used some breadboard cables instead...
https://photos.app.goo.gl/NMRT8i69r9NJ2HMf6