Hey everyone, I built a new rig with a Ryzen 9 9800X3D and a Gigabyte RTX 5080 Gaming OC, but I hardly game—usually just 1-2 hours a month. Most of the time, I'm doing office tasks and light productivity. I'm looking for a way to fully disable the dGPU so the system can run off the iGPU instead. My GPU idles around 39-40°C and even reaches 43°C during basic tasks, and I'd like to reduce those temperatures if possible. Would plugging my monitor into the motherboard automatically disable the dGPU, or is there a better method to manage this? Thanks for any tips!
5 Answers
I’m with everyone on this—it sounds like a lot of hassle for little reason. Your setup is overkill for what you’re doing, and honestly, if you're just gaming a couple times a month, letting the GPU idle is totally fine. It's built to handle it!
Sure, you can use the motherboard display output to run off the iGPU, but it’s usually not necessary. With a dGPU that's idling, it's using less than 50 watts, which isn’t much. If you're feeling uncomfortable about the temp, you can tweak the fan settings in MSI Afterburner to keep the fans running at a low speed all the time.
Just a heads up, a lot of people seem to end up questioning why you even built such a powerful PC for light use. It's cool that you got it affordably, but if it ever causes you a headache, maybe consider if you really need that level of hardware for your everyday tasks.
It seems to me like all this fuss over temps is unnecessary. Your GPU is well within the normal range. If you worry about the heat, try adjusting your fan settings or just let it be; it's designed to handle being at those temperatures. You're likely not going to find an ideal solution for completely disabling the dGPU without diving into BIOS settings!
You really don't need to stress too much about idle temps. The GPU fans usually turn off during low usage, so it's designed to handle those temps just fine. You can disable the GPU in device manager if you really want to, but honestly, 40°C isn't even a concern—it’s pretty normal for a GPU at idle.
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