E6400 overheating throttling

What really bugs me, is that everyone system is essentially the same. Same motherboard, same CPU type, etc... The only BIG potential different is not the GPU but the different northbridge chip (with and without Intel GPU). I don't see the relation with bluetooth and wireless card difference. So it comes down to:
- Northbridge
- OS
- Drivers

That is what bugs me the most.

 

Has anyone with the Nvidia GPU managed to get the northbridge temperature up to 55C?

 

I remember you asking about this before. I don't have a good way of tracking chipset temp without paying for it (Everest seems like it would but I'd really rather not pay for it and my free trial expired). Otherwise I might experiment with that. Of course, I would be more motivated to do some testing if there was a compelling theory that connected chipset temp to this throttling problem. It's hard for me to see anything but an indirect connection, but I'm hardly going to totally discount anything yet. Care to elaborate, WSX, on what your guess might be regarding how chipset temp is connected? Keep in mind that NVIDIA folks have a different northbridge than Intel graphics folks (because the Intel graphics is *in* the northbridge for them).

 

How about this?
During Test (ignore minimum, I was doing heavy stuff before):


After I hit the stop button - system speed:


In my case, which I think is normal (as it's a laptop CPU) is that the CPU is not being auto-overclock by 6% when under heavy stress (but still does it under somewhat level of load, which is: compiling large project several time in a row, and gaming (sadly I have to Alt+tab to see... so I don't know if it switches in that split seconds). In any case, it's still the advertise speed after routing (2.26GHz

Using in this case Windows 7 64-bit, NVIDIA solution, High Performance mode set.

 

I think that the problem (throttling when the northbridge reaches 55C) is present on all systems regardless of which GPU is in the system. With the X4500MHD-less northbridge, those with the Nvidia GPU find it quite difficult to get the northbridge temperature to 55C and trigger the throttling. Basically, I think that the BIOS will automatically throttle the system when it sees that the system's nortbridge has reached 55C, regardless of GPU.

Edit: Goodbytes may have proved my theory wrong.

 

Interesting theory, one which I'm particularly interested in. If this is indeed the case, I think this'll help our cause in getting Dell's much needed attention.

Tinkerdude - have you tried using I8kFanGUI? It'll show you the Chipset temp (without having to pay for it)

 

See the screenshot attached. My event log has at least one event 7 per day (up to 5 a day). Sometimes it happens during startup, sometimes it doesn't. I realize that this event is a symptom though, not a problem in itself.

 

Goodbytes, that chipset temperature seems awfully high. I have ran the Everest Stability test for over an hour and my chipset temperature still does not go over 55C even though I have the X4500MHD.

 

I have no trace of these kernel events in my system log files. Not even for last Sunday, when my P8600 was trying hard to emulate an Atom.

John

 

You can rule out OS and probably drivers(unless the bug was carried over from Windows based drivers to Linux) as well. I can confirm the issue on Fedora 11 64 bit.