Air Conditioning

[simple_inhibition]

didnt any of you check his sig? (i know i forgot to :-P) says he has a CNPS 9500. that would be more than enough for cooling your 3800 my friend. air conditioning isnt worth the added costs in electricity, noise or condensation prevention costs. what case are you using?

[polobunny]

Originally Posted by simple_inhibition

didnt any of you check his sig? (i know i forgot to :-P) says he has a CNPS 9500. that would be more than enough for cooling your 3800 my friend. airconditioning isnt worth the added costs in electricity, noise or condensation prevention costs. what case are you using?

I did, but no one actually cared. :P

[Banditman]

I'm useing just a plain ol case that has 8 bays. Have one fan in front bottom pulling air in, 2 fans that I cut out on side pulling air in, 1 fan in rear inline with CNPS 9500 pulling air out. Not to mention PSU has 2 fans pulling air out. I use IDE cables NOT ribbons so air flow should not be a problem. I am just wondering why the temp dropped 11 deg when I opened it up? I am trying to contemplate the amount of heat the new video card will produce as well.

[Quakindude]

If your CPU temperature dropped that much just from taking the side panel off, then something about your airflow is borked. Either your fans aren't blowing in the right direction or something. Regardless of what we might *think* the problem is, you do have an airflow problem. When I take the side off of my case, the CPU temperature stays the same.

[Banditman]

All fans are blowing in right directions. I made sure of that when I installed them. I know I have enough power because I just upgraded my old 350 watt to a 550 watt due to the new video card requirements.

[stinger608]

Originally Posted by Banditman

All fans are blowing in right directions. I made sure of that when I installed them. I know I have enough power because I just upgraded my old 350 watt to a 550 watt due to the new video card requirements.

On some cases, you may have to experiment with fan direction. I found that on an older system. I had the front fan blowing in, the side fan blowing in, and 2 rear fans blowing out.....Would seem correct. But when I pulled the side off, I had a serious drop in cpu temps. I ended up finding that with that case the best combo was to have the side fan blowing out and the front fan blowing out with the 2 rear fans blowing in. I know, that sound crazy, but that is where I got the best cpu temps.

So the bottom line is, you may need to experiment a little to find the best combo.

[Banditman]

Ok I had a wild hair and decided to try something. I took the front and rear fans off and doubled them up. I actually screwed 2 fans together so they are blowing in the same direction and remounted them so I now have double the air flow comming in through the front and double out the back. That seemed to have done the trick. Core temp is showing a stable idle temp at 28 - 31 vs 44 deg before with a closed box. 8 damn fans altogether!..lol

I now have another question. I also have the Easy Tune 5 from Gigabyte installed that came with my mobo. The Core Temp app is showing a 6 deg diff than Easy Tune. Which is correct?

Core Temp shows Core#1 at 31
Easy Tune shows Core#1 at 26 and case temp at 30 stable

Stinger, I would try your suggestion but that includes disassymbling the CNPS 9500 CPU fan and turning it around to blow toward the front. A task I do not look forward to as it was a pain to get it installed and seated properly in the first place. But thank you for that info as I will know on the next system I build.

[Quakindude]

When I was doing my little experiment here at the house a few months back, Core Temp came out on top in the temperature wars. I used an infrared thermometer to test my AMD X2 4800's CPU temp vs the reported Temp by MSI's utility on a K8N NEO2 Platinum mobo(Best damned s939 board made!). Core Temp was within 1 degree. Bios, at start up, was within 1 degree. MSI's/nVidia's applets were off by as much as 10 degrees C.

As a general rule of thumb, I toss the included temp/performance/overclocking utilities that come with any mobo. I then go into the Bios and do everything from there. I get temps from a strategically placed thermocouple or from TAT/Core Temp.

I'm going to buy an IR thermometer here soon for testing purposes. That way, I don't have to borrow one from work.

[Banditman]

Alright, thanks for the info.

[stinger608]

Originally Posted by Banditman

Stinger, I would try your suggestion but that includes disassymbling the CNPS 9500 CPU fan and turning it around to blow toward the front. A task I do not look forward to as it was a pain to get it installed and seated properly in the first place. But thank you for that info as I will know on the next system I build.

I didn't mean turn your cpu fan backwards, just experimenting with the case fans. But as you said you doubled them up, so in a since you did experiment with the case fans