The custom-built PC won't start and the case's power light is blinking.
The custom-built PC won't start and the case's power light is blinking.
I recently assembled a new system using a Ryzen 7 3800x with 32 GB DDR4 (16x2) RAM, a Gigabyte B550 I Aorus Pro AX motherboard, a Gigabyte RTX 3060 12 GB graphics card, an EVGA SuperNOVA 550 GM with 80 Plus Gold 550W power supply, an Evga CLC 120mm AIO cooler, and both a 1 TB NVMe SSD and a 1 TB standard SSD. Everything was packed into a Hyte Revolt 3 case. The machine performed adequately without major problems. However, I noticed it became quite warm, prompting me to upgrade the cooling solution to a SilverStone VIDA 240 Slim cooler.
After thoroughly uninstalling the EVGA AIO, I installed the new cooler, ensuring all fans and RGB cables were correctly connected. I double-checked my previous cable setup while disconnecting the power supply. Once reconnected, the power switch activated, fans began spinning, but the system failed to power on at all. No display appeared on the monitor, the fans shut down immediately, and the front case power button started blinking erratically—without a consistent pattern.
I searched for similar issues and consulted troubleshooting guides. I rechecked my wiring, verified the motherboard connections, reconnected components like RAM, GPU, power supply, and CPU, reinstalled the SilverStone cooler (which didn’t work), and replaced the thermal pad with thermal paste (a decision based on community opinions). Each attempt led to the same outcome.
Was my CPU damaged during the process? I only observed the case power button flashing and complete lack of fan operation afterward.
I don’t have another machine available for direct testing. Any advice or insights would be greatly valued!
Thanks for reading.
The model of the PSU is also being asked. Its age is also being inquired about, along with whether it was purchased new, used, or refurbished.
I purchased an EVGA SuperNOVA 550 GM, 80 Plus Gold 550W from Newegg over a year ago.
Appreciate your help!
The EVGA 550 GM struggles to handle an RTX 3060, making a 650W power supply more appropriate. This issue stems from the temporary power surges typical of RTX 30-series models. Regarding build standards, the 550 GM offers only average construction. It performs adequately for basic office tasks without a dedicated GPU, but falls short for gaming setups.
In any case, given your Ryzen configuration, one of the following—CPU, motherboard, RAM, graphics card, or power supply—is likely faulty. At this stage, it would be wise to take your system to a repair shop for diagnostics and repairs. A component swap might be necessary. If the situation is critical, attempting a rebuild with just one RAM stick could work; it might revive your PC or leave it unchanged. Testing it is a good idea.
It’s difficult to pinpoint exactly what caused the problem, but ESD damage seems probable, especially because removing the power cord leaves no grounding inside the case. This makes it easier for static electricity to damage internal components. If the PC had been connected via the power cable but you flipped the PSU switch, grounding would still exist. Given the mediocre build quality, it’s likely that ESD or a faulty PSU was responsible. Therefore, investing in a reliable PSU is essential since it powers everything and is crucial for overall performance.
Thank you for your guidance! The PSU kept adding up to over $100, which made me hesitate. It makes sense that it could be. Given my situation, I think finding a reliable repair shop would be the best option :/
I’ll look for one soon and share the outcome with anyone else facing a similar problem.
Currently, 100 dollars for a PSU is barely enough. Prices have risen and now good quality units are around 150 or more. The best approach is to check the PSU tier list—anything from Tier A will suffice. Here’s the link: https://forums. Your EVGA GM is Tier B, which explains the lower quality. Also, the PSU I own is a Seasonic PRIME TX-650, which I bought 7 years ago for €206.50 (about $222.97). Now you can find a similar model for around 300 dollars.