Uploaded February 2026 | Updated September 2026, 2 weeks ago
What really happens if you cheap out on your power supply?
In this video, we intentionally undersize a PSU and put it into a high-end gaming PC to see what actually happens under load. Does it just shut off? Does performance tank? Or can it silently damage your components over time?
We’ll stress test the system, monitor power draw, check for voltage instability, and talk about protections like OCP, OPP, and ripple — and whether they actually save your hardware. If you’ve ever wondered, “Is 750W enough?” or “Can a weak PSU hurt my GPU or CPU?” — this is the experiment you’ve been waiting for.
No fear-mongering. No brand bias. Just real results...
If you're building a high-performance rig, overclocking, or pushing modern GPUs and CPUs to their limits, this is one component you don’t want to gamble on.
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---
00:00 Choosing a PSU
04:48 Why Underpowered Is Bad
09:22 What Happens With Underpowered PSU
14:52 Over-Current Protection
17:45 You Can't Have Too Much PSU
19:25 Conclusions
What really happens if you cheap out on your power supply?
In this video, we intentionally undersize a PSU and put it into a high-end gaming PC to see what actually happens under load. Does it just shut off? Does performance tank? Or can it silently damage your components over time?
We’ll stress test the system, monitor power draw, check for voltage instability, and talk about protections like OCP, OPP, and ripple — and whether they actually save your hardware. If you’ve ever wondered, “Is 750W enough?” or “Can a weak PSU hurt my GPU or CPU?” — this is the experiment you’ve been waiting for.
No fear-mongering. No brand bias. Just real results...
If you're building a high-performance rig, overclocking, or pushing modern GPUs and CPUs to their limits, this is one component you don’t want to gamble on.
○ Get your JayzTwoCents Merch Here! - jayztwocents.com
○ Join this channel to get access to perks:
youtube.com/channel/UCkWQ0gDrqOCarmUKmppD7GQ/join
○ Join the official JTC Discord! discord.gg/jayztwocents
○○○○○○ Items featured in this video available at Amazon ○○○○○○
► Amazon US - amzn.to/43wnUsz
► Amazon UK - amzn.to/Zx813L
► Amazon Canada - amzn.to/1tl6vc6
••• Follow me on your favorite Social Media! •••
Facebook: facebook.com/jayztwocents
Twitter: twitter.com/jayztwocents
Instagram: instagram.com/jayztwocents#
SUBSCRIBE! bit.ly/sub2JayzTwoCents
---
00:00 Choosing a PSU
04:48 Why Underpowered Is Bad
09:22 What Happens With Underpowered PSU
14:52 Over-Current Protection
17:45 You Can't Have Too Much PSU
19:25 Conclusions
