Nvidia chip problem

[andygb40]

Im experiening stuttering ingame with my 6625WD (Colin McRae Dirt at low settings) and my temperature spikes very easily over 100°C after not more then 10 minutes of playing the game.

This must mean that my GPU is about to fail, or that it is "infected" with the chip problem, since I did'nt have these problems not more then 2a3 months ago.

I also had my motherboard replaced (2 months ago), can this be the cause of the high GPU-temperatures? (maybe they forgot to aply thermal-paste between the heatsink and the GPU)

There is no way of telling if your GPU is effected. Until it actually fails. Not good I know. It is distictly possible that you have had the thermal paste poorly applied after your motherboard was replaced, especially as you are seeing such high temps.
Have you changed your drivers since your motherboard was replaced? Newer drivers could, and often do, cause the GPU to get hotter as they make better use of the hardware acceleration offered, not necessarily more efficient use though.

[Sprint]

bartjeh01
when did you last clean out your cooling system?
what drivers are you running?
what BIOS?
Are you undervolting your CPU?

high temps do not neccesarily mean something is defective (cept cooling paste/heatpipes). But 100C is too much

[t3K|Mac]

i have >100C too. i cleaned and refitted the heatpipe using AS5. No change in temp so far... i think the heatpipe is way too small for the 8600m gt. my notebook is just 2 months old, so it can't be dust. what bothers me, are the few fins at the end of the heatpipe. in my opinion way too few. the cpu's has dozens, the gpu itself just has 10 or 12. no wonder about those high temps.

i have to admit, even if my notebook goes to 107C (after hibernating), everything runs fine. no thermal throttling or downclocking or even shutdowns. but how long will my notebook be alive with this temps? i already have a zalman 1000 notebook cooler - gave me just a few degrees less...

[Sprint]

i have >100C too. i cleaned and refitted the heatpipe using AS5. No change in temp so far... i think the heatpipe is way too small for the 8600m gt. my notebook is just 2 months old, so it can't be dust. what bothers me, are the few fins at the end of the heatpipe. in my opinion way too few. the cpu's has dozens, the gpu itself just has 10 or 12. no wonder about those high temps.

i have to admit, even if my notebook goes to 107C (after hibernating), everything runs fine. no thermal throttling or downclocking or even shutdowns. but how long will my notebook be alive with this temps? i already have a zalman 1000 notebook cooler - gave me just a few degrees less...

The cooling system is completely diffrent in the 6625 and 6324 you have.
>100C is too much for the 6625, I have 87 (playing AoC), with new drivers and volted CPU. No stutters or anything, or sleepfixes, and runs like a dream (much better than some of my friends desktops )

[andygb40]

i have >100C too. i cleaned and refitted the heatpipe using AS5. No change in temp so far... i think the heatpipe is way too small for the 8600m gt. my notebook is just 2 months old, so it can't be dust. what bothers me, are the few fins at the end of the heatpipe. in my opinion way too few. the cpu's has dozens, the gpu itself just has 10 or 12. no wonder about those high temps.

i have to admit, even if my notebook goes to 107C (after hibernating), everything runs fine. no thermal throttling or downclocking or even shutdowns. but how long will my notebook be alive with this temps? i already have a zalman 1000 notebook cooler - gave me just a few degrees less...

I agree entirely with you on the size of the effective cooling area. Way too small. I have asked Zepto about this and their reply was to ignore my comments and tell me my notebook needed to be sent in for cleaning. I am not prepared to wait nearly 1 month for the notebook to be returned to Zepto, cleaned, and the sent back to me (15 working day turn around quoted to me by Zepto!!!). I had only just cleaned the insides by removing the keyboard and taking the heatsink assy off. My max temp at the moment is 96C, before I cleaned it I regularly hit 102C, not too bad an improvement, but I feel it needs to be lower.
I was toying with the idea of removing the crap finned section and soldering some from a Dell or some other notebook that has a lot more fins, but after the nVidia announcement I decided against completely screwing my warranty.

[bartjeh01]

bartjeh01
1. when did you last clean out your cooling system?
2. what drivers are you running?
3. what BIOS?
4. Are you undervolting your CPU?

high temps do not neccesarily mean something is defective (cept cooling paste/heatpipes). But 100C is too much

1. About a week ago (I do it allmost every month)

2. 169.09

3. I had z15N015, but with that I could'nt even play for more then 5 minutes, it got a bit better when i downgraded to z15N004

4. Yes, i am undervolting. atm my CPU is at 0,6Ghz and 0,85V but it is undervolted all the way (goes to 1,5V max)

Have you changed your drivers since your motherboard was replaced?
Newer drivers could, and often do, cause the GPU to get hotter as they make better use of the hardware acceleration offered, not necessarily more efficient use though.

And no, my driver is 169.09 since the day it was released (tough it is not an official Zepto driver)

[Sprint]

1. About a week ago (I do it allmost every month)
2. 169.09
3. I had z15N015, but with that I could'nt even play for more then 5 minutes, it got a bit better when i downgraded to z15N004
4. Yes, i am undervolting. atm my CPU is at 0,6Ghz and 0,85V but it is undervolted all the way (goes to 1,5V max)

Im running 175.80 (V x32)
015
Undervolted to 0.8500V in SLFM, 1,0125V at 1,8GHz (max)

2 things Im a bit suspicious about your volts:
-004 doesnt support SLFM, wich means CPU cant go to 0.85V, min is something like 0.925V.
-My stock max voltage is 1,1750V so 1,5V sounds awfully much!
You need to check that one, cause ~0.4V is very much

[bartjeh01]

Im running 175.80 (V x32)
015
Undervolted to 0.8500V in SLFM, 1,0125V at 1,8GHz (max)

2 things Im a bit suspicious about your volts:
-004 doesnt support SLFM, wich means CPU cant go to 0.85V, min is something like 0.925V.
-My stock max voltage is 1,1750V so 1,5V sounds awfully much!
You need to check that one, cause ~0.4V is very much

RMClock lets me put the lowest voltage at 0,85V, I dont think there is a way to verify this. (and i was wrong on the 1,5, its 1,125)
Maybe i need higher voltages because mine is a T7700 wich goes to 2,4Ghz

And since I am on XP and zepto has't released newer drivers since the stone-age for my GPU, I stick with the latest stable one, thats 169.09..

[John Ratsey]

Just to clarify, 0.85V is the bottom of the LFM voltage range in the Intel datasheet:

Vcc at High Frequency Mode (HFM) 1.0375V to 1.3000V
Vcc at Low Frequency Mode (LFM) 0.8500V to 1.0500V
Vcc at Super Low Frequency Mode (SuperLFM) 0.7500V to 0.9500V

Each CPU is preset with voltages within those ranges.My T7300 came with HFM=1.25V, LFM = 1.0V and SLFM = 0.9V.

Some lucky people get CPUs with voltages in the lower part of those ranges.

John

[bartjeh01]

In RMClock I can choose next to SLFM (Super Low Frequency) 0.85V, that must mean I am one of the lucky ones with a nice undervoltable CPU and a not so nice overheatable GPU..