The PC is experiencing random crashes, but it appears to start up but doesn't show any output.
The PC is experiencing random crashes, but it appears to start up but doesn't show any output.
My system operated normally for some time, but began freezing while gaming. Everything seemed okay until it suddenly slowed down and the screen would freeze, requiring a hard restart. I attempted to install the latest BIOS. The PC restarted again, yet the issue persisted. Now I’m unable to see anything on the display.
The only hardware connected is the motherboard, power supply unit, CPU, RAM, graphics card, and monitor. When turned on, the case components appear normal. Using a keyboard and pressing DEL, I accessed Dr Debug code AB, typically indicating a problem in the BIOS settings. Alternatively, I can disable Dr Debug by pressing F1, as if bypassing the boot screen. Still, nothing appears on my monitor. The HDMI cable is connected, but no signal is detected.
Previously, with all components installed, I experienced unusual behavior that I can no longer replicate. Upon powering on, code A2 would appear, suggesting an issue connecting to the operating system on my SSD. Clearing the CMOS battery might bypass that code, but it still wouldn’t show anything.
I’ve repeatedly cleared the CMOS, swapped the graphics card, changed RAM sticks, switched monitors, reinstalled the CPU and cooler (no bent pins), and adjusted the PCIE slot for the graphics card. The first time I changed the PCIE slots, the screen displayed BIOS settings. However, without any input, it likely crashed and won’t show anything now.
Searching online didn’t yield effective solutions. The parts I haven’t swapped are the CPU, motherboard, and PSU. My suspicion is that the motherboard is the root cause. I plan to replace it next. Anyone have faced a similar issue? Apologies if this post is lengthy; it’s difficult to pinpoint the exact problem now.
Back in 2010, when the PSU was released, it was a solid PSU. It ran on the Seasonic S12II platform (considered the best group-regulated PSU ever). But nowadays, it feels like it's way too outdated and should be replaced as soon as possible, before it fails and causes other issues.
Talking about it, there was another user in the TH forums who reported that their Seasonic S12II-520 failed and probably damaged something else too.
If you're looking to prevent a similar situation, it's best to swap your PSU for a modern, brand-new one.
Since PSU powers everything, it's the most crucial upgrade.
Welcome to the forums, newcomer!
My PC functioned well for some time, but it began freezing while gaming.
There are two possible causes when a system freezes under load:
1) An overheating problem
2) The power supply is unable to provide enough power to the whole system when under stress.
PSU: Antec 750W 80 Plus Bronze
How long has the PSU been in use?
It might be wise to borrow or rent a more reliable PSU capable of handling 650W for the entire setup.
I plan to replace it later.
Be careful—replacing parts from your own pocket will drain your budget, and you’ll end up with outdated components. That’s why we recommend borrowing rather than buying.
Thank you for your message! The year on the PSU is 2011 and it has been in use for a while. I’m not sure where to find a source to borrow PC components, but I can buy a used one and return it if it doesn’t solve the issue. Would a faulty PSU stop the PC from showing the BIOS, even if the motherboard, CPU, and GPU are getting power?
The exact model (or part number) of the PSU is confirmed.
For additional testing, detach the GPU from the system and connect it to MoBo using a monitor. Since your CPU includes an integrated GPU that can be utilized.
It might be that only your GPU is malfunctioning, which explains why no image appears.
If uncertain, one of the following could be faulty: CPU, MoBo, RAM, or PSU.
To identify the exact issue, you need a compatible system for individual component testing. The PSU is unsuitable as it is outdated and cannot be used.
My PSU model is HCG-750. The barcode above it says G110ADUD0010448.
I wasn't aware my CPU had integrated graphics, which was helpful. It allows me to run the PC normally. However, in the BIOS, the PCIe slot for my graphics card appears empty. When I tried using another graphics card, the slot also showed as empty. So I don’t think my graphics card is broken, but I don’t have another PC to test it on.
Tomorrow I might try reinstalling graphics drivers or the BIOS, or checking the Device Manager. I’m using Windows 10 Pro.
Back in 2010, when the PSU was introduced, it performed quite well. It ran on the Seasonic S12II platform, which was considered one of the best group-regulated power supplies ever produced. But nowadays, considering its age, it’s quite outdated and should be replaced as soon as possible, before it fails and causes other issues. Talking about it, there was another user in the TH forums who reported that their Seasonic S12II-520 failed and likely caused damage to something else too. If you're looking for advice: https://forums. To avoid similar problems, it’s best to replace your PSU with a modern, brand-new one. Since the PSU supplies power to everything in the PC, it’s the most critical component. Never compromise on quality—don’t opt for cheap or used units. For a fresh PSU, consider models from Tier A such as Seasonic Focus, Vertex, PRIME, Corsair RMx/RMi/HXi/AXi, or Super Flower Leadex Gold/Platinum/Titanium. PSU tiers: https://docs.google.com/spreadsheet...JW...1973454078 Tier A is sufficient, while Tier A+ is preferred. A 650W unit works fine; a 750W one is even better. My three PCs are powered by Seasonic units. I have PRIME 650 Titanium (Tier A+), PRIME Ultra 650 Titanium (Tier A+), and Focus PX-550 (Tier A). Detailed specs and images are available in my profile. You also have a second PCI-E x16 slot labeled PCIe3. You can use it to connect your GPU, even though it only provides 8 lanes instead of the full 16. The GPU will still function. You might want to try the second slot if the first one failed. If not, you could use your RTX 2060 with reduced performance, or switch to an iGPU if both slots are dead. At least you can still run your PC and browse the web—maybe play some light games like Minecraft. Other than that, a new motherboard is necessary. But since your PC is old, it’s better to upgrade with a fresh CPU, new motherboard, and a new PSU.
I placed an order for a replacement PSU and will wait for its arrival before making any major changes. In the meantime, I've been attempting to have the PCIE slots recognize my graphics card. Surprisingly, the advice on the forum at https://www.tweaktownforum.com/foru...ci...aring-cmos proved effective. I turned off the PSU, connected the clear CMOS pin jumper, removed the CMOS battery, and left it for over 12 hours. Previously, I had only cleared the CMOS or removed the battery briefly, but this method seemed more reliable. In the BIOS, the PCIE slot became active and I was able to view the screen with my HDMI cable connected to the graphics card. However, after a short time, the fans on the graphics card stopped spinning even though it was still functioning. I immediately shut down and will wait for the new PSU to arrive before proceeding.
The new PSU model is what? To reset CMOS by disconnecting the battery, allow a few minutes (for example 5 minutes) for the process to complete (this accounts for capacitors on the motherboard draining). Now, if your motherboard has CMOS clear pins (+ and -) that you can connect in parallel, just one instance is sufficient to reset CMOS.
The new PSU is a Super Flower Leadex III ATX 3.1 750W.
My graphics card is a Gigabyte RTX 2060. It makes sense that the fans stopped when it wasn't under load. I wasn't concerned about anything.
After installing the new PSU, I tested the PC for a few hours and didn't encounter any crashes. Previously, I had been using the 8 lane PCIe port without issue. I switched to the 16 lane PCIe slot, but now the 8 lane slot doesn't seem to work at all. I could try fixing it, but it's not a major issue for me. Everything else seems fine.
Thank you very much for your help and advice!