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Processore quad core Intel Core i7 da 2,0. 2,3 o 2,6 GHz (fino a 3,8 GHz con Turbo boost) con 6 MB di cache L3 condivisa.

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Low boost clocks and high temps in Cinebench

I’ve got A1398 Late 2013 with 2.6ghz i7-4960HQ. Thermal paste apparently wasn’t swapped it’s entire life. In Cinebench it was reaching 95-100 degrees and 2,8 - 2,9 clocks. CB score - 540 or even lower.

I changed the paste with Cooler Master V1 IC Value. And got… 95-100 degrees and 3.0 boost clocks AT MAX. CB score 580 0_0

This model must give about 640! What the heck is that? I didn’t make any nooble mistake I bet, I did everything right. I even reapplied the paste to be sure it’s not my fault. Nothing changed, it works slower than it must and even gets hot while FF playing video.

What could be? Never stumbled upon anything like that

Before CB:

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While second run launched instantly after the first

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Rispondi a questa domanda Anch'io ho questo problema

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Lets get a better view on things here, install this app TG Pro its one of the better monitoring apps. Wen the system is idle take a snapshot of the main window, make sure you grow it so all of the sensors and fans are visible. The do a second snapshot capture just after running Cinebench. Post both here for us to see Aggiungere immagini ad una domanda

da

Done

(I have to write something to make my comment longer so the site passes it :D)

da

Your cool ;-}

da

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OK, I think I see the issue. Note the heat pipe Outgoing Air sensors are very low in comparison to the CPU temps when you are stressing the system.

So the heatsink has failed! The coolant within the tube has leaked out. You’ll need to replace it. Keep in mind there is two versions of this system. The IG - Intergraded Graphics (Intel Iris) & DG - Dual Graphics (Intel Iris and AMD GeForce GPU. Make sure you get the correct heatsink.

The only way I know of to tell if yours is truly dead is to use a good weight scale that can measure the subtle difference of a wet Vs dry heatsink.

Immagine MacBook Pro 15" Retina (Late 2013-Mid 2014, Integrated Graphics) Heat Sink

Prodotto

MacBook Pro 15" Retina (Late 2013-Mid 2014, Integrated Graphics) Heat Sink

$29.99

Immagine MacBook Pro 15" Retina (Late 2013-Mid 2015, Dual Graphics) Heat Sink

Prodotto

MacBook Pro 15" Retina (Late 2013-Mid 2015, Dual Graphics) Heat Sink

$29.99

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Oh God. Couldn't expect it may fail at all. Especially because it has absolutely no signs of possible damage ore any interference at all.

The first time I face such thing :I'm ordering a replacement, but are you sure no other issues may cause it?

da

The reason for two snapshots was to isolate the issue. I've replaced over six in the retina series.

da

Thanks for your help!

da

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Hi!

Finally I’ve got my new heatsink. And, you know… NOTHING CHANGED! Everything is the same, temps are high, clocks are low.

What’s the heck is wrong??

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Applied liquid metal - no results. Even on highest fan speeds!

da

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What I found out:

In Windows 10 it's FASTER THAN IT SHOULD BE! 665 CB instead of 640 intended. Probably, because of LM on CPU

But it still throttles way lower in ANY MacOS, Mojave nor High Sierra, with or without custom fan control, on automatic nor full fan blast.

I've ran ASD testing and everything is fine

What da heck?

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Anri sarà eternamente grato.
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