[ltp] Z61p GPU Thermal Issue

[vjaneczko]

I know this isn't related to Linux, but I've got a Z61p with 2.5 gb of ram
running Windows XP.  When the system runs 'normal', non-GPU-intensive apps,
the normal output temp is about 110f - I go low-tech and place a candy
thermometer at the vent. But when I run 'Company of Heroes', which hammers
the GPU, the temp rises somewhere to 149f. If I don't have a small fan
sitting in front of the air vent pushing in air, the video goes kaput.  I
think that when I added the 2nd stick of ram, it may impact the flow through
the air vent, which is located under the touchpad. I don't think ACPI would
have anything to do with it, it's the GPU bustin' balls to get the job done.

>From what I can find, there's no way to set the fan to a max speed - at
least in the XP world.  If anyone has heard of any way to effectively
improve the fan operation or help keep it cool, just pass it along.






Brian D. Ropers-Huilman-3 wrote:
> 
> On 8/31/07, Richard Neill <rn214@hermes.cam.ac.uk> wrote:
>> That suggests to me that it isn't really the GPU getting hot. If you can
>> touch the case, it's safely below 60 degrees.
> 
> I do have a somewhat higher pain threshold than most people. When the
> machine gets _hot_, but still usable for me (on my lap) the CPU
> temperatures are often in the mid 60s C.
> 
>> Test with something like Knoppix - that should rule out possible
>> distro/version-specific kernel/driver/xorg bugs.
> 
> Excellent suggestion. I have booted it off other live CDs in the past,
> but never specifically to test or control for this (GPU thermal
> issues). I'll take some of those CD/DVDs along with me this weekend.
> 
>> Also, try with just the BIOS, or memtest86 - does that crash out?
> 
> No, it doesn't, but I'll stress the system a bit more with an extended
> memtest86.
> 
>> >> It's possible you have a broken sensor instead of a broken GPU.
>>
>> I think you've got a service issue here - you probably need to ship the
>> machine back to IBM. [Take your disk drive out before you do]
> 
> I've often wondered about this, and it may indeed come down to that.
> 
>> However, if it's "just" the sensor (or the sensor-driver), what happens
>> if you disable ACPI?  (boot with acpi=off). Then, try running tuxracer
>> or glxgears for a while. Does your machine still power off due to an
>> overheat?
> 
> I know I've also experimented with booting with ACPI off, but I
> honestly was not very scientific in my tests at that time. I'll look
> at that again too.
> 
> Good suggestions all around. Thanks much,
> 
> -- 
> Brian D. Ropers-Huilman
> -- 
> The linux-thinkpad mailing list home page is at:
> http://mailman.linux-thinkpad.org/mailman/listinfo/linux-thinkpad
> 
> 

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