Panasonic EYG-R (Gen.3.2021) Graphite Pad Testing

Recently purchased a new laptop through my perksatwork account through my employer and as usual the thermal solution provided by Lenovo while large was not giving me the results I was looking for. Initially I intended to use liquid metal but the surface area after disassembly was so uneven I seriously doubted the contact on a heatsink.

Link here for reference:
http://notebookparts.com/new-genuin...-gen-cpu-cooling-fan-and-heatsink-5h40x89383/

So I went looking for my trusty PGS-S pads and noticed I was out and upon going to to Digikey to order more I am greeted with this headline:

Now this isn't an entirely new concept as Panasonic has constantly improved the product starting with Gen 1 (.1mm thickness) Gen 2 Soft (.2mm thickness) and now Gen 3 Improved Soft Type R (.35mm). First thing that should jump out at the veterans here is the new thickness which is now double the previous S-PGS and quadruple the original PGS sheeting used by Cool Laboratory IC Graphite. So naturally I ordered a sheet!

Digikey EYG-R Listings:
https://www.digikey.com/en/products/filter/thermal-pads-sheets/218?s=N4IgTCBcDaIKYE8DmBaATiAugXyA

It arrived last week and so far I've been blown away by it. For some reason enthusiast media outlets haven't picked up this yet so I figured I'd post my initial findings here.

So what does it look like? EYG-S on right EYG-R on left


Answer: Very VERY different. The overall feel is not at all like the foil we've seen before but more like aluminum sheet metal. Second picture below comparing thickness to a Fujipoly 1mm thermal pad:


Ok so the improvement on this 3rd Gen design is compressibility to make it more like traditional wax pads and thermal paste. Lets see how much better it is this time...


......wow. Honestly I was not expecting results like this at all. Not only with minimal pressure can you perfectly see the impression from the paper clip but also my fingerprint? At this point I immediately tore down the machine and replaced the TIM with the new pads.

First impression was one of panic. While I realize that the P15 has a target thermal profile of 90C* to make it more Mac like I honestly thought I hadn't plugged the fans in. Another teardown later confirmed that the fans were in fact connected and working.

Off to initial benchmarks starting with Cinebench R20. Initial thermal performance seemed excellent and while 100C was hit multiple times until Lenovo fixed PL1, PL2, Tau and the fan curve there isn't much I can control but good god look at PL1 and PL2 sustained wattage!


Scores seemed low compared to the 4k and 5k scores seen by folks using the m15R4 & M17r3 until I checked a baseline courtesy of notebookcheck.com


So we're seeing a nearly 500 point bump or roughly 15% above a reference stock. Additional thermal testing showed to me a solid 10-20C drop in temperatures off of my dock and as stated previously the fans almost never engage. Normally during browsing idle temps ranged high 60s - low 70s. Now I'm seeing high 40s - mid 50s and lap temperatures hovering in the low 70s with cool-and-quiet set to off and mid 30s enabled.

Certainly my results aren't anything I'd consider scientific but I believe this should be looked at further as it seems to have both the cooling capacity of at minimum standard TIM and quickly approaching LM territory.

 

Ok. I just ordered one. We'll see...

 

Did you happen to have the chance to test it yet? I'm curious what the results are.

 

Terrible, don't bother. Maybe slightly better than EYGS, but still worse than the worst normal thermal paste I have. Was already 7C worse than MX-5 on a r9 290X, and a 9900k @ 5 ghz with a Thermalright Venomous-X heatsink reached 100C in Prime95 small FFT AVX disabled, in 30 seconds. (TFX was 93C in 15 minutes). Note I tested the 0.250mm version since those were desktop parts. Blower heatsink impression was nice and very visible on the 290X, so I didn't bother with the 0.350mm version, which I just threw in a container.

Tired of wasting money from people's bright suggestions here. Everything the non established people who are not well known pros (like @Mr. Fox Fox, @Papusan, @saturnotaku, @Rooter1234 , etc) suggested has just cost me money, and I'm not rich.

Stick to TFX/TF8/MX5 (if HS has good fit)/Coolermaster Maker Nano/IC Diamond.

Follow this chart and don't deviate from it too much.

http://forum.notebookreview.com/thr...and-liquid-metal.806840/page-48#post-11084441

 

Thanks for the quick response. I guess I'll just stick with TFX or Thermalright liquid metal then.