lowering case temps?

[Bonka]

I've been having a lot of troubles trying to lower my case temps. My ambient temps are usually below room temp (I'm in the basement). Anyways, I've got the standard cheap 18" atop case with ok cooling. During idle, my case temps hover between 26-28c. If I'm lucky, I can get it down to 24-25 constant. During load, my case temps can go as high as 29 constant. My side panel is open and my room is usually freaking cool. I've got a 120mm Delta 71CFM hung with twist ties on the top rail of my tower where the side panel grooves are, blowing air directly to my cpu hs/fan. I also have a 53CFM Sanyo Denki that's currently not in use since when I had it in there, the temps don't go down.

What are causing these high temps? The inside of my case is fairly neat. My room is rather cool and I don't even have the heat on. Maybe I've got terrible air circulation in my room?

Here are my temps when my machine was over at a friend's house for a LAN. My tower was near an open window however, otherwise, his entire room was warm.

http://www.bonka.f2s.com/images/mbmtemp4.jpg

What I can't understand is that a couple of my friend's computers, especially one who has a rear case fan only gets 22c case temp and doesn't even go up during load. He's got a Duron 750@933. Even when I'm over at his house, and his room is freaking warm, he still gets 22c case no matter. it will go up sometimes. He's got a blue orb glued to his northbridge on an ABit KT7A.

[oc jason]

get some more cfm , lower DB fans, i use a 120 mm Sanyo Denki=103cfm at 39db. That ususally drops it to like 22c load, and regular fans i got (2 80mm Panaflos-38cfm @32db) keep it at 24-26c all the time.

[Yodums]

Airflow is a problem there's no intake or exhaust.

The hot air is staying in there which your CPU is sucking in.

Yodums

[Cluster]

And to boot, those aren't bad temps at all, usually your case will be around 5-10c warmer than your ambient. Try putting intake fans up top and exhaust fans near the bottom, usually makes for good airflow, and watch for dead spots, like under cards, drive bays, and behind cables

[WarriorII]

Sounds to me like you really don't have a problem with air flow at all.
The temp probe, for the mobo, is usually located nowhere near the CPU. And that sounds like where most of your airflow is directed.
Your friends 22c temps....he's found his probe and has a fan pointed @ it, and that keeps it @ a steady temp.

Set up ur CPU cooling as best as possible.
Then set up ur case fans for best flow,
XX# of cfm intake and XX# of cfm for exaust.
Have them placed in good spots...ie: bottom front/ top rear....
Side blowing in...../ Top blowing out/up.......whatever.

Then check ur case temps.
Don't go spend a boat-load of money for something that can be cured by re-arranging the inside of ur case a little.

:cool:

[Bonka]

Yes. I will be getting a few more 120mm and 80mm case fans. I'm also going to be getting a new, large, 24" full atx towercase. Perhaps that will maximize my airflow throughout.

Thanks for the tips guys :D


EDIT:
I don't want to post a reply again but I was wondering, my case fans don't seem to "suck" air as well as blowing it. I know the top half of the tower should be designated to suck air but when I put my hand over the back side of my fans, doesn't seem like much is going on. Just the design of the fans or is this how it works?