My recommendation would be to use a power supply that is rated at 1.5x the combined peak power consumption of the GPUs plus the CPU. With some power supplies you may need to take care how GPUs are matched to “rails”. You also stated earlier that you saw GPUs go up to 85 degrees, how does that jibe with your information that “after hours” of operation they only reach 75 degrees? Power consumption will differ widely based on workload, are you quoting temperatures from two difference workloads by any chance?Īs a sanity check, I would make sure that all the power connectors are plugged in, and make sure the power supply has sufficient output to drive four GPUs.
Something is very wrong in that scenario, but I cannot remotely diagnose what it is. What does not make any sense to me is the statement that the GPUs do not overheat at stock fan speeds, but nonetheless down-clock unless cooled more aggressively. power rating for the GPU as well as the current power draw.
If they don't, kill the test you don't want your GPU overheating.If none of the GPU overheats (75 degrees seems perfectly fine, even 80 would be OK), the only other reason I can think of that would cause them to down-clock is if they exceed the power limit, or if the power supply does not deliver enough power. As the test runs, your GPU will heat up and your fans should kick in. You can use a utility like FurMark for this. If your GPU fan doesn't spin during this process, it indicates a problem.Ī second method is to put your GPU under a stress test. On boot, your system usually runs all your fans at full speed for a brief moment to check that they're working. First, restart your computer and watch your GPU fans. This because it's a waste of energy for the GPU fans to constantly spin if the temperature of the card is already low. It's common that GPU fans don't spin unless under load (meaning you're doing something intensive on the system, like playing a game or rendering images) and the card reaches a specific temperature. Is the GPU Under Load?īefore proceeding to any further steps, you first need to check that your GPU fans are meant to be spinning. We're going to talk you through all the troubleshooting steps you need to follow to resolve the issue when your GPU fans aren't spinning.
0 kommentar(er)
