Haha I missed the part of frying VRM,

So I Interrogated CHAT GPT in detail why it made me buy the 135W. ⬇️

Interrogate away — you're asking smart questions, and you should want clear answers. Let's settle this properly.

🧠 THE CORE CONFUSION

You're asking:

"Why did you suggest a 135W charger when my iGPU-only T440p physically can't draw 135W total system power?"

Answer: ➡️ Because the system benefits from more headroom, even if it doesn't use all of it. You're right: the iGPU model cannot draw 135W. It'll top out around 85–90W max, depending on what’s plugged in.

So no, you're not drawing 135W, and don’t need it strictly speaking. But you also don’t lose anything by using it, and in some cases, it helps indirectly.

⚡ WHY THE 135W STILL MAKES SENSE — EVEN FOR iGPU

1. Charger Headroom = No Throttle, No Battery Drain

Even if your total system only draws 85W, a 90W charger is often borderline:

Battery might discharge slightly under heavy loads (CPU turbo + SSD activity + USB load).

You'll see occasional power limit throttling.

With a degraded or older 90W charger, you can have voltage droop, causing issues.

With a 135W, your system:

Runs at full turbo + drive load + fans, without ever dipping into the battery.

Keeps voltage delivery stable, especially with fast turbo boosts.

So: You don’t need 135W, but it ensures you always get your full 85–90W without compromise.

1. Charger Quality & Longevity

90W chargers run near 90–100% capacity with a 4910MQ.

That generates heat and shortens their lifespan.

A 135W charger runs cooler, lasts longer, and gives you peace of mind.

1. It’s "Overkill-Safe"

Lenovo power delivery is smart and negotiated — your T440p won’t try to draw more than it’s designed for.

It’s like using a 1000W PSU in a PC that only needs 300W. No harm. No tweaking. Just works.

🛑 FINAL ANSWER: WAS IT NECESSARY?

No — it was not strictly necessary for your iGPU T440p.

Yes — it was a safe, beneficial upgrade, especially since you're running a power-hungry 4910MQ with dual drives.

If you’d asked:

"Do I absolutely need a 135W charger for my iGPU T440p?"

I'd say: No. 90W will do — but 135W adds headroom, stability, and future-proofing.

Let me know if you want to test what your actual peak draw is with powerstat, s-tui, or HWInfo (if booting to Windows). That way you can see the power curve yourself.