MBP 15" Throttle down to 0.8 ghz?

[MittWaffen]

UPDATE

So i got back from the apple store, they told me "No problem system is fine".
The issue was thermal/throttle related. So i asked, why I am able to replicate it on OSX/Windows but you guys cant? Then i replicated the issue in 5 minutes.

Running OSX I opened DukeNukemForever, + CPU stress test+ youtube video.
System broke 98c in <5 minutes, then this let me prove the throttle connection. I busted out my intel whitepapers to prove that the system throttles @ 95c and will thermally shutdown at 100c. Told them, the system will break/die because of the 100c boiling point temps, explained that if your able to boil water off the cpu, its far too hot for the solder and other components inside the unit.

When i showed them this, they accepted the unit back for inspection/correction a second time.
Macbook pro 15" the 2011oct units seem to be throttled, I did the same test on a display unit and it did the same thing 100c, then throttled down to snail speeds.
So I assume apple wont be able to fix an engineering design flaw (Issue present in all three systems i've tested) in the thermal design, because it would require a complete redesign, not just thermal paste; the heatsinks become thermally saturated currently, thus the system throttles. Apple is relying on throttling to keep the system cool, however, it throttles FAR below stock 2.4 ghz clocks (0.8ghz). Apple falsely advertised cpu speeds, when you need it you only get 1/3rd the advertised speed after throttle.

I believe all 15" macs from OCT2011 (current model) have this issue, if you actually look for it like I did.
If you own one and need to see this for yourself, PM me and i'll give you some software links to demonstrate this
on your units (Cpu stress test, monitoring software etc)

I'll report back when I find out the next step apple takes to 'fix' my unit from throttling.



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My macbook has serious issues, first off.. the system fans ramp up to 6200rpm doing simple tasks like windows updates.

Then when you play any gpu intensive task the FPS will go from great, down to terrible hitching after awhile. Looked and ran bootcamp, noticed with cpu-z the system cpu clock drops to 1.2-0.8ghz when playing a game. Basically getting less then half of my 2.4ghz i7 speed. This causes everything to become CPU bound when you actually need to use the system and it runs like crap because of it.

What should/can I do? I have applecare and it seems like this is a big issue with Sandy Bridge cpus and not the mac itself.
This happened on my first 2011 macbook too, so it seems like a system wide problem?

temps are mid-high 70s during this time, after spiking to 100c (210f)

HELP.

Click image link for screen shot of the problem.
[IMG=http://img406.imageshack.us/img406/4728/throttlewhilegaming0900.png][/IMG]

Uploaded with ImageShack.us

[masterchef341]

are you on the battery?

[MittWaffen]

Of course not, AC powered.

It seems that a lot of sandy bridge systems have this issue when the system is under load. Throttling problem, windows 7 gaming + cpu-z makes it 100% clear that it throttles down to 1.2-0.8 range.

[Mobius 1]

The sandy bridge version of the MBP has a thermal paste flaw. You should buy arctic silver 5 and repaste it (find the guide at macrumors).

Also in windows you can download "speedfan" and set both fan to a minimun of 3500 during work

If in mac use "SMCfancontol"

hope this helps

EDIT: also i don't recommend you use TriXX, use MSI afterburner (w/ unofficial OC mode, find it somewhere on the HP laptop boards)

[masterchef341]

Originally Posted by Mobius 1

The sandy bridge version of the MBP has a thermal paste flaw. You should buy arctic silver 5 and repaste it (find the guide at macrumors).

That's a pretty intense suggestion considering apple solders the cpu to the motherboard. Can you link to the macrumors guide which details how to do this?

[Mobius 1]

I'm not pointing out the CPU, it's the thermal paste.

15" MacBook Pro (SB) Thermal application/guide - Page 13 - MacRumors Forums

^ how to repaste

also, 73 c is not a hign temp. try using Throttlestop

[masterchef341]

got it. sweet.

[MittWaffen]

Throttle stop doesn't work, 73c is low, but its low because my system is borked running at 800mhz, its slow as hell when i actually need the speed.

The system breaks 100c usually, then throttles down to very very slow speed, not really the solution I'm looking for. I'm not clocking the gpu, might down volt to be safe though.

Still, why did I spend thousands on a 15" that can't even use the components inside of it without taking them down to 1/3rds advertised speed.

[Mr.Mischief]

Originally Posted by MittWaffen

Throttle stop doesn't work, 73c is low, but its low because my system is borked running at 800mhz, its slow as hell when i actually need the speed.

The system breaks 100c usually, then throttles down to very very slow speed, not really the solution I'm looking for. I'm not clocking the gpu, might down volt to be safe though.

Still, why did I spend thousands on a 15" that can't even use the components inside of it without taking them down to 1/3rds advertised speed.

Try cleaning the fans out, my 2011 MBP 15 never got that hot. Also, remeber your warranty. It is possible that you got a MBP with a really bad thermal paste job. Just use it till it burns up and Apple will replace it(as long as it's still under warranty of course).

2011 Macbook Pro 15(2635QM 2.00GHz & HD 6490M) Gaming/Graphics Review

[MittWaffen]

Originally Posted by Mr.Mischief

Try cleaning the fans out, my 2011 MBP 15 never got that hot. Also, remeber your warranty. It is possible that you got a MBP with a really bad thermal paste job. Just use it till it burns up and Apple will replace it(as long as it's still under warranty of course).

2011 Macbook Pro 15(2635QM 2.00GHz & HD 6490M) Gaming/Graphics Review

Its not the fans, unit is brand new less then 30 days old.
I have Applecare, and will likely go in tonight to get it 'repaired'.
I'll see if my unit is the reason or the design itself.

....800mhz, should of never bought a macbook this year.