Why did my Temp go up?

[jaredm77]

I just removed the stock fan from my Taisol CGK742 and replaced it with the black label Delta fan for more cooling. When I booted up to check my temps, the case temperature which had been around 22 with the Taisol was 28 and my CPU was running one degree warmer than with the lower RPM fan, why? I was getting around 41-44 degrees with the stock fan, and am now getting about 42 with the Delta, what's going on? I don't want to put up with the horrible sound that this thing emmits if I don't have to, any suggestions?

 

[Imperium97]

Give it a little time for comparison. Your case temp really shot up there, are the days getting warmer where you live?

 

[DaddyG]

I live in St. Louis and the last couple of days have been almost like Summer !!!. Temps will always change if your ambient changes. The temp 'delta' is whats important not the absolute value.

 

[Tschaft]

Make sure u put the new fan on the same way your old one was on there....suck or blow..

 

[jaredm77]

I've got it sucking air in right now, and no, the weather really hasn't changed. It has been wet the past few days, but that didn't seem to effect the stock fan too much. I'll give it a little while longer and see what's going on, I am going to add another intake fan and a exhaust fan to the side and tops of my case anyway. Thanks.

 

[dkozloski]

One factor I never see mentioned is that under some conditions a high capacity fan can actually move less air than a lower rated fan because of blade stall. Because air flow is restricted for some reason, the air hits the fan blades at a less than optimum angle and gets churned around rather than blowing efficiently just like a stalled wing loses lift. After all a fan or propeller is just a rotating wing. I have helped this condition in some installations by spacing the fan out with some rubber grommets thus allowing some bypass leakage. The increased efficiency of the fan operation more than compensates for the leakage loss. If this is your problem a little experimentation will demonstrate it.