I've just upgraded my PC but kept my existing PSU and GPU. The GPU had been working well before in my old PC (i5 4th gen) and games ran generally smoothly. Now it is in my new build, when playing games e.g. Doom Eternal, the fans start "pulsing" and the FPS in game goes up and down like a yo-yo, as in 80-40-80-40 except that the counter is more of a garbled mess.
Weirdly, on my monitor when I look at the refresh rate using the built in menu the frame rate fluctuates 75hz down to 35 or so then back up every half a second.
I know the GPU is capable of running the game smoothly as I completed it on my old PC set up.
All my drivers are up to date and I've tested the PSU with a multimeter and the voltages appear to be solid. The PSU is quite old, it's a Thermaltake 750w semi modular. And when I say old, it could be 10 years old.
Temperatures for CPU/GPU/RAM etc. all seem fine.
I nearly bought a new PSU but if it could be something else I would rather not drop the cash on a new one if I don't have to.
Spec:
Ryzen 3600
MSI Mortar MAX motherboard
Crucial Ballistix 16gb DDR RAM
Sapphire Radeon RX480+ OC
Thermaltake 700w PSU
2x SSD (Crucial)
Cooler Master 240l CPU cooler
Weirdly, on my monitor when I look at the refresh rate using the built in menu the frame rate fluctuates 75hz down to 35 or so then back up every half a second.
I know the GPU is capable of running the game smoothly as I completed it on my old PC set up.
All my drivers are up to date and I've tested the PSU with a multimeter and the voltages appear to be solid. The PSU is quite old, it's a Thermaltake 750w semi modular. And when I say old, it could be 10 years old.
Temperatures for CPU/GPU/RAM etc. all seem fine.
I nearly bought a new PSU but if it could be something else I would rather not drop the cash on a new one if I don't have to.
Spec:
Ryzen 3600
MSI Mortar MAX motherboard
Crucial Ballistix 16gb DDR RAM
Sapphire Radeon RX480+ OC
Thermaltake 700w PSU
2x SSD (Crucial)
Cooler Master 240l CPU cooler