i7 920XM ES (Q3B8)

Does anyone here use an ES/final QS version of the 920XM that was bought from ebay?

If so, what temps are you getting? And do you experience the throttling issue at 80C?

 

I believe that throttling issue (which was power drain related as opposed to temperature related) is a motherboard / bios issue, not a CPU issue. I've been wrong before, but I remember reading that somewhere.

If it was in fact an issue of temperature-related throttling I am almost 100% positive it is a BIOS "feature", as the BIOS is what controls the clocks of just about everything in the machine I believe.

 

Well, my machine is a Clevo W860CU and it is obvious that Turbo Boost is the one throttling the 920XM based on the 80C ceiling.

ACPI should've been throttling it at about 95C.

What do you think?

 

I have no idea honestly.. an 80c celing is a rediculous proposition in a mobile performance processor.

Regardless of ACPI, though, the BIOS has the final say as far as I know. If the BIOS is set to throttle at 80c, it will throttle at 80c, wether or not the OS is using ACPI to tell it otherwise. I think ACPI is more for providing a single unified architecture for power management and control of processor sleep states. Temperature management is closer to the firmware / hardware, however, to provide for the possibility of OS failures.

By OS failures, I mean the case of an OS going completely AWOL (it happens as we all know), and putting the CPU in to a loop while simultaneously suspending or crashing ACPI software support. In that case, the CPU would heat up until it melted down, literally. I believe the temperature throttling / shutdown protocalls are BIOS related, as the BIOS is the final layer of software / firmware before the hardware itself.

This is all pure speculation, however. If someone with more knowledge wants to step in I fully encourage them to.

 

Yeah, please do so. I have a buddy, Soviet Sunrise, who owns the Clevo W870CU with an OEM 920XM and when he tries to replicate 80C temps, he would also experience throttling. But then again, he doesn't reach that temp even when stress testing since he lives in the US with pretty low ambient temps.

As for me, I live in the Philippines with about 33C average ambient temps and 80C is easily reachable when stress testing.

If anyone could help me. I don't know if this is because of BIOS, the CPU being an ES, or whatsoever

 

That doesn't mean you can't stop throttling with a dsdt mod.

I have helped some people with the 7811fx to stop thermal throttling by changing the throttling trip point in the dsdt. So a quick reg mod could fix this.

http://forum.notebookreview.com/showthread.php?t=298342&page=22

If anyone is interested send me a PM.

 

Hi, quite some time has past since the last post but here I am.
Since I performed a BIOS update on my system, my cpu (920xm qs) has shown much higher temps and my system is also enjoying throttling issues while gaming (60 to 15 fps in a fraction of a second).
Before the update temps would be 39-42 on idle and 45-55 on heavy load.
Now, I get 48-55 on idle and as high as 81 while gaming.
I then replaced this 920 by my original 720qm. Max temperature while gaming would be 57 celcius and no throttling issues whatsoever (GPU downclock).
So I believe the problem is BIOS related.
I attempted a rollback to no avail. Seems the CPU is scarred with this BIOS update.

 

ES i7 CPUs are really PITA.

 

TechARP did an article on the Core2 engineering samples that were floating around: Tech ARP - Why You Should AVOID Intel Core 2 Engineering Samples Rev. 4.1

It's well worth the read if you'd like to understand just what sort of stuff you can expect from ES chips in general.

 

MALEWARE ALERT! Do not use this link !Tech ARP - Why You Should AVOID Intel Core 2 Engineering Samples Rev. 4.1

 

Damn spammers and their ES cpus!

 

That's really strange that you saw a malware alert. I've opened the link myself a few times and Firefox doesn't complain. I've got ABP and NoScript turned on though, maybe that's why. Regardless, it was an interesting article, so I thought I'd share.. no ill will intended.

 

I've also been to that page many times. Never got a warning.

 

Well my avast blocked an incoming attack and I got a warning. I sure hope it was wrong for your people's sake

 

No warning here and im well protected. i use microsoft security essentials.

 

No warning, but i'm on a mac

 

Wouldn't even open on my iPhone. :'(