No POST or BIOS. The sound is originating from the PC speaker.
No POST or BIOS. The sound is originating from the PC speaker.
Hi everyone,
I’ve broken my computer and I’m trying to figure out exactly which part was damaged. I was adjusting the clock speed and everything seemed fine until it suddenly failed!!
At that time, my GPU was running at 1.25v with a clock speed of 4.5MHz using precision X. I noticed the card had been throttled down due to a TDP limit. I found a forum post on overclocker.net that mentioned using nvflash and a BIOS update for my GPU. It seems these changes might have removed the power limits from the card’s power limiter and also increased the power draw through the PCIe bus. After flashing the card, I powered it down but it wouldn’t restart.
Initially, the screen went black, there was no POST beep, and a strange clicking noise came from the PC speaker. I’ve already tried troubleshooting, but I’ll remember every step I took.
First, I removed the graphics card, assuming that was the issue. I switched to the secondary BIOS on the card and reconnected it, but still had no success. Even with the card out and the onboard graphics plugged in, it wouldn’t boot.
Next, I reset the CMOS and shorted the primary BIOS to let the motherboard recover. Nothing happened. I researched and started removing components to isolate the problem. I took out all but one RAM stick, unplugged all drives, removed the GPU, but still couldn’t get it to boot.
Then I took off the case fan, disconnected the drive power cables from the side of the PSU. I had a CM 750W gold case; half of the cables were hardwired and half were connected to the sides. After removing these, I got a boot screen!
From there, the BIOS reset itself from the backup as expected when I shorted it out. I was able to connect all my drives and power cables, restart, and it booted into Windows. But when I tried to reinstall the GPU, it immediately returned to the same clicking error.
Unplugging the GPU didn’t help, and even after removing all components, I still hadn’t recovered.
I’m guessing either the motherboard or the PSU was damaged when I removed the power cap from the GPU. I really don’t know what’s going on, but I hope someone can help me figure it out.
While GPU was disconnected and monitor connected via HDMI of onboard graphics, I continued receiving nothing except a blank screen and the continuous ticking sound through the PC speaker. Resetting CMOS didn’t produce any results. This is similar to the previous incident, though I hadn’t noted it before. In the last attempt, disconnecting components one by one eventually restored the BIOS. Now I’m trying again...
Could not reach the BIOS despite unplugging the same items as before.
I’m considering sending it back for repair and wondering what might be wrong.
It seems the MOBO might be defective because of irregular startups and inability to enter BIOS. The PSU could also be the issue.
Do you have any ideas on how to identify the faulty part?
Hey there, did you finally get it by the end? I see you're dealing with the same issue on your laptop and still unsure how to fix it...