Question My lighting in my case flickered under load so...

[mkfelidae]

So I was using a thermaltake smart series 700 watt PSU for about 2 months before adding an extra GPU to my system (1070 PNY, +2070 HP OEM) after about 4 days I noticed that my lighting in my case had started to flicker, (brief almost instantaneous dimming of the RGB strips and the lighting on the new GPU), this only happens when I have the two GPUS under load (F@H if it matters) or running Furmark. I immediately suspected the PSU but on checking the computers power draw I found myself drawing no more than 496w on a spartan kill-a-watt knock-off I had lying around. This seemed wierd but I went ahead and bought an EVGA 850 watt GQ series semi-modular PSU and replaced the TermalTake PSU this morning. The flicker is either completely gone or is now a figment of my paranoid mind (I swear I still see it but my roommate doesn't).

Sorry for the ramble, but here is my question: was it the PSU or could it be something else that a better PSU is now masking?

My computer specs are as follows:
Gigabyte x490 Aorus Ultra Gaming Motherboard,
AMD Ryzen 5 2600X
1x PNY XLR8 GTX 1070 OC edition
1x HP OEM RTX 2070
3x Seagate white label 2TB HDDs
1x WD Blue NMVe SSD 1TB
1x ADATA SATA M.2 SSD 256GB
Intel AX200 Wi-Fi / Bluetooth 5.0 PCIe card
VIA USB 3.0 PCIe card
LG Blu-Ray Reader
LG DVD R/W Drive
2x 140mm Fans of indeterminate origin
1x coolermaster 120mm fan
3 USB peripherals (Hauppage-955 dual, a mouse and a controller)

 

[hang-the-9]

Well you replaced the power supply and issue went away. If you put the other one back in does the issue come back? No idea what else it could be if not that unless you are running the RGB stuff of a separate controller or splitter and that is the issue.