Did I cook my 3090? The computer won't start unless I disconnect the GPU from the power supply...
Did I cook my 3090? The computer won't start unless I disconnect the GPU from the power supply...
Hi there, newcomer.
I assembled my first PC and everything functioned perfectly for more than a year. Last week it shut down abruptly and won’t power on again.
During checks, I found it works if I detach the PSU from the graphics card—lights come on and fans spin—but when I reconnect it fully, it stops completely, not even showing any indicator light.
According to calculations, the PSU has more than enough capacity for the entire system (SeaSonic PRIME Platinum 1200 W, 80+ Platinum certified, fully modular ATX), with a power rating around 539W.
The graphics card is a Gigabyte GAMING OC GeForce RTX 3090. I purchased it used on eBay and it performed well even under heavy load (I’m doing machine learning tasks). It was connected via one cable to the PSU, which I now see as not advisable.
🙁
Did I damage it? What should I try?
Is a replacement GPU necessary? Searching online for my issue gives no results (maybe skill gap).
Thanks!
Welcome to the forums, newcomer!
I built my first PC and everything was working fine for about a half a year.
Please list the specs to your build like so:
CPU:
CPU cooler:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:
Monitor:
include the age of the PSU apart from it's make and model. BIOS version for your motherboard at this moment of time.
The RTX 3000 series was notorious for having high transient load spikes, it's why users were advised to over provision on their PSU's besides looking at a reliably built unit, users had to look into a 1.2KW~1.5KW unit if you were looking at an RTX3090;
View: https://www.youtube.com/watch?v=wnRyyCsuHFQ
What can I do to troubleshoot/fix this? Do I need to buy a new GPU?
Pass on images of the daisychain you'd used + images of the card. If the card is beyond it's warranty period, you might want to inspect the card for anything melted and/or if you can smell something burnt.
Here is your text rewritten with the same length and structure:
The CPU is an AMD Ryzen 7 3700X running at 3.6 GHz with 8 cores. The cooler included with it is the one provided in the box. The motherboard is an MSI B550-A PRO ATX AM4 board. Memory consists of Patriot Viper Steel 32 GB (two 16 GB modules) using DDR4-3600 CL18. The storage is a Silicon Power UD85 2 TB M.2-2280 PCIe 4.0 X4 NVME SSD. The video card is a Gigabyte GAMING OC GeForce RTX 3090 with 24 GB of VRAM. The case used is the Zalman S2 ATX Mid Tower model. The power supply is a SeaSonic PRIME Platinum 1200 W, which is certified 80+ Platinum and fully modular. I purchased it used on Ebay at the end of 2023, so it’s likely to be around three years old. The case fan is an ARCTIC P12 PWM PST 56.3 CFM 120 mm fan (X3). The operating system is Nixos, a Linux distribution. The display is a Samsung UE32F6200 from a pretty old model. I noticed the issue continues even when the display is disconnected from the GPU. The BIOS version is unknown and I can’t check it. Thanks for the information about transient spikes; I wasn’t aware of this problem, but I was expecting to run two GPUs, so I over-provisioned power (1200W PSU, part picker says 539W usage). That extra 660W should easily cover any power spikes from a 350W graphics card. However, now that you mentioned it, I recall the PC shutting down randomly—possibly because I changed the “hybrid mode” setting on the PSU, which resolved the issue (though I’m not sure which was the correct setting). Regarding the daisy chain, I’m using the cables that came with the PSU. Here’s a link to the image: https://imgur.com/a/I40m8Mo. At this point, there’s no visible burning smell or damage to the GPU.