I'm trying to add a second GPU to my prebuilt system, which has a non-modular PSU. It only comes with one PCIe cable that splits into two 6+2 connectors. I have an RTX 4060 and a GTX 970, and I'm wondering if I can use one 6+2 connector for the 4060 and then use an 8-pin to dual 6-pin adapter to power the 970. I'm not too experienced with this and have seen mixed information online, so I'm kind of worried about potentially damaging both GPUs.
2 Answers
When you're looking for a new PSU, try finding one with at least two 6+2 PCIe connectors or a combo of 8-pin and dual 6-pin cables. Whether it's modular or non-modular could indeed impact your choice, so just check what fits best in your case. Modular ones let you use only the cables you need, which could help with airflow too.
Totally! And don't forget to check reviews to ensure it's reliable and powerful enough for your setup.
Definitely a big no on that setup! It sounds risky. You really want to make sure each GPU is getting the power it needs without sharing it in a way that could overload your cables or PSU. Multi-GPU setups can be awesome, but they require proper power planning.
I wanted to use it for lossless scaling. The 970 would help with generating frames, and I've also heard that you can use multiple GPUs in Blender. I guess I’ll need a new PSU that has the right PCIe cables for this idea.
It's wise to upgrade your PSU. With your components, having around 600 watts might be borderline, especially when you add the second GPU. Make sure you have some overhead for stability.
Great tip! I didn't consider airflow. I guess I’ll have to weigh the pros and cons of modular versus non-modular options now.