Noctua NHU12 with high temps
- Thread starter Sitt
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- 20 Sep 2006
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mine? low 30s. Windows is busted ATM, so cant do a propper check (linux cpu temp progs are nonexistant), but they were easily low 30s, maybe even high 20s if i pushed the fans up a little on the controler (i use undervolted Sharkoon 2000s). Easily a 10C+ drop in idle temps, more at load.
When i undervolted to 0.975V, i was getting virtualy ambient idle temps.
When i undervolted to 0.975V, i was getting virtualy ambient idle temps.
Soldato
- Joined
- 22 Mar 2007
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- 3,875
Mine (see sig) idles at about 40 degrees when overclocked so think there must be something wrong there.
Update: I decided yesterday to have a go at lapping. So out came the CPU and heat sink and less than an hour later both were lapped. I've got to mention that I didn't go for the mirror finish that everybody is raving about; I just left the finish with a few "swirl" marks on both the CPU and heat sink. I stuck it all back together and started up the pc - holding my breath in case I had mucked it all up...
The machine started fine, no problems at all; however, TAT only read a few degrees less than before I had lapped my CPU and heat sink (around 41/38 degrees). This was with the side of the case off too and all fans on full.
Next step was to install a 120mm fan in the front of the case to increase air flow; this was additional to the 80mm fan that sits in front of my hard drives. I have 3 hard drives in my case all sitting directly behind the small 80mm fan at the front of my case so you can imagine, there was not a lot of air flowing around the case.
Thinking about it, this should have been the very first point to start working out why I was having such high temps in the first place before lapping my CPU and heat sink. But I didn't, I had made sure that all the cables were nice and tidy but I had failed to think about the bloody 80mm fan not being sufficient enough for circulation of air. Doh!
Anyways, my machine is all back together and now even with the sides on the temps are now reading a respectful 35/32 degrees. I know that this is still not the best temps around but it’s a vast improvement on my initial temperatures. These new temps by the way are with the fans on full speed as mentioned.
I overclocked my machine to 3Ghz, ran Orthos but my machine locked up within the first 3 minutes giving an error about hardware failure or something (don’t know Orthos that well yet). So, it now sits fairly comfortably at 2.7Ghz, I’ am however putting these terrible overclock speeds down to the cheap Kingston Value RAM that I’m currently running (I have 2GB of Crucial Ballistix 8500 on back order that should be arriving within the next week).
So, the outcome to my story is double check air flow within the case and make sure that you have enough fans to circulate air around the case before doing something as drastic as lapping the CPU...
The machine started fine, no problems at all; however, TAT only read a few degrees less than before I had lapped my CPU and heat sink (around 41/38 degrees). This was with the side of the case off too and all fans on full.
Next step was to install a 120mm fan in the front of the case to increase air flow; this was additional to the 80mm fan that sits in front of my hard drives. I have 3 hard drives in my case all sitting directly behind the small 80mm fan at the front of my case so you can imagine, there was not a lot of air flowing around the case.
Thinking about it, this should have been the very first point to start working out why I was having such high temps in the first place before lapping my CPU and heat sink. But I didn't, I had made sure that all the cables were nice and tidy but I had failed to think about the bloody 80mm fan not being sufficient enough for circulation of air. Doh!
Anyways, my machine is all back together and now even with the sides on the temps are now reading a respectful 35/32 degrees. I know that this is still not the best temps around but it’s a vast improvement on my initial temperatures. These new temps by the way are with the fans on full speed as mentioned.
I overclocked my machine to 3Ghz, ran Orthos but my machine locked up within the first 3 minutes giving an error about hardware failure or something (don’t know Orthos that well yet). So, it now sits fairly comfortably at 2.7Ghz, I’ am however putting these terrible overclock speeds down to the cheap Kingston Value RAM that I’m currently running (I have 2GB of Crucial Ballistix 8500 on back order that should be arriving within the next week).
So, the outcome to my story is double check air flow within the case and make sure that you have enough fans to circulate air around the case before doing something as drastic as lapping the CPU...
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