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W500 Heatsink, "Paler" than T61p's?

W500/510/520 and W700/710 series specific matters only
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jeffbaichina
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W500 Heatsink, "Paler" than T61p's?

#1 Post by jeffbaichina » Thu Dec 20, 2018 12:42 am

Having switched to a W500 from a T61p, I've noticed that my W500's heatsink (45N5492) is much "paler", or "less red/bronze coloured" than the T61p's (42W2820). While the T61p's heatsink appears red and bronze while viewing from the vent, the W500's looks gold or even a bit silver.

This doesn't seem to affect function however, as the T9900 holds around 90C after 30 minute of Prime95 small FFT. Just wondering if there's any engineering/cost/... factor that went into this change? Please do share your insight...

Thanks in advance.

Thinkpad4by3
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Re: W500 Heatsink, "Paler" than T61p's?

#2 Post by Thinkpad4by3 » Thu Dec 20, 2018 1:12 am

My best guess is the copper oxidizing over time. I noticed this on a T42 heatsink vs a T500 heatsink too.
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The efficiency of two screens equally sized with equal numbers if pixels are equal. The time spent by a 4:3 user complaining about 16:9 is proportional to the inefficiency working with a 16:9 display, therefore the amount of useful work extracted is equal.

jeffbaichina
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Posts: 128
Joined: Fri Dec 21, 2012 12:47 am
Location: Madison, WI

Re: W500 Heatsink, "Paler" than T61p's?

#3 Post by jeffbaichina » Fri Dec 21, 2018 2:44 am

Thinkpad4by3 wrote:
Thu Dec 20, 2018 1:12 am
My best guess is the copper oxidizing over time. I noticed this on a T42 heatsink vs a T500 heatsink too.
It would make sense except the heatsink was new on my W500, and a side view from Notebookcheck seems to confirm the same colour difference.

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