Hi, recently I was able to buy the maximally equipped W520, I have a problem with it though. It's about power supply when working with a docking station, the laptop claims that the power supply is too weak and suggests switching to the one purchased with it. Of course it works with the original powe...

That's interesting already, my CPU newer drops lower than 2,6GHz and goes up to 4,6GHz on single thread loads. I cant wait to do more tests.

Ok maybe I will buy this 04W1574 and make few tests to settle this once and for all.
What tests you propose ?

Will I need something more, I have thermal grease tg5 of course
, but I mean thermal pads maybe ? If so what size ?

That's interesting, I have the same CPU/GPU configuration and the seems that the same temperatures on officially 45W TDP. I have 96's during renders in 3d Studio etc. So I thing there is no real difference between 45 and 55 W heatsink. Maybe when Intel introduced 55W CPU's, they tested old cooling s...

Thanks for you reply. Well You are absolutely right, I don't see any difference between FRU 04W1574, 04W1575 and what I have. I wonder if that's scam like with 4338 USB 3.0 docking station. Only difference I see is between 04W1574, 04W1575 and 04W0437 - this one has much more massive bases, but VRAM...

Hi, I just bought my W520, and I decided to upgrade it every possible way. Everything went good, but I have problem with CPU cooling. I have 04W1576 (45W TDP) unit which works fine, but up to 96*C. I decided to buy 55W TDP unit, but only one I was able to get right away in Poland was 04W0437. Ok U m...