Can fans make a case hotter?

[her own pride]

My AMD athlon is running with 1 case fan 2 PSU cooling fans, Heat sink fan etc and a fan I added covering the Graphics card/PCI, however its hotter after I added a fan covering the graphic card.

The case is quite cool but the CPU fan is now hotter. I have a 400w power supply that should be fine coping, no overclocking, yet my AMD athlon xp is up to about 49degreesC at current, isn't that a tad hot?

[AllGamer]

More Fan is Better

no the extra fan will NOT make your PC hotter

your problem is somewhere else

besides you can't expect a fan in the wrong place to help you cool down

get 2 case fan

and put 1 at the speaker

then the other near the CPU

:t

[BipolarBill]

Yes it can. There are two situations that will make your case hotter:

Overpressure - too many fans blowing in.

Underpressure or vacuum - too many blowing out.

If you added a fan blowing in and temps went up, either leave the fan off (so that air can still be drawn in for cooling) or add a fan blowing out. You can also change to a low-speed fan over the video card.

[Bigjakkstaffa]

BPB's right, you need to reach an equilibrium regarding air intake and outake and also make sure the fans are positioned in the best places for a complete airflow, in order to prevent small pockets building up heat

--Jakk:t

[AllGamer]

yeah, but he did describe it clearly

he's just basically a Stock case setup right now

the only addition he made was for the Video card fan

that will definitely not make things hotter

either ways an extra Fan at the back and front will make the funnel effect work properly

another thing to check is for the CPU contact with the Heatsink

:t

[ukulele]

A better solution is to just turn off the temp monitoring software. The problem is not that your computer is a "tad" hot, it is that you think it is. ;)

[AllGamer]

Uke got the best answer of all :D :t

[her own pride]

my paranoia just stems from owning an AMD athlon 1.2, it got hot in the summer last year and I got loads of blue screens in Win XP, more fans seemed to solve the answer, but out of frustration I decided to put an XP 1.6ghz processor in. I have had no problems so far, but my software measures the Diode on the XP chip which I imagine is fairly accurate and it is exactly 4 degrees difference between that an my Mobo sensor. SO when it shoots up to 55degrees C (max with Sisoft burn in) I guess thats still under 60C... which is perfectly safe right?

[ukulele]

I wouldn't sweat it (get the pun?). :D

[AllGamer]

yes it's totally safe

my OWN safety line is anything under 70c is good.

90c is the maximum for the XPs

so in reality anything below 85c is good

:t

[Bait Man]

her own pride, I have a system running at 41 celius which is 110 degree,to me that does not seem hot at all, have read on other post where temp reaching 55 or higher..:x

[krazefinn]

Have seen situation once (older p2) that would heat up with extra fan. Discovered total combined wattage with one extra fan exceded psu rated capacity, thereby it ran below spec'd current, and began to shed extra heat due to "overdrawn" power. A failing, marginal but stil functional psu will also experience thermal overload, which would be excacerbated by the draw of extra fan.

I also conjecture that new fan was not sensibly installed, it did not increase heat transfer out, and may have interfered with proper internal air/heat dynamic flow.

Just be sure to not exceed power output of psu with all plugins, and should have at least 10% margin of error to allow momentary excessive current drawing situautions (like spinning up a drive, etc) or booting. Lso when adding fans, design the airflow with some consideration to proper scheme of things.

An unfiltered extra in fan can also result in excess lint/roach/dust bunny or cat air accumulation in thermally sensitive and critical internal components, but this would then occur over time, unless one cleaned it (I filter all my inlets, designing slight internal case presure to alleviate expensive optics and drives from indiscriminately sucking dust into uncleanable crevices) weekly.

[nothing]

My setup is 2 intake and 2 exhaust fans. I was playing with the fans and I set them all to blow air into the case. Result: Higher temperatures. Now I have them as they were and my computer is nice and cool.

[Zurke]

Is the AGP/PCI fan blowing on the CPU fan?
If so, it may not be allowing the cpu fan to evacuate warm air as well as it could.

Location, location, location.:)

[her own pride]

good reply Zurke, however It is now the evening and the temp is 44degrees a drop of 6 degrees, so is that ok, so far it seems ok, but I don't want a sunny day to ruin my enjoymet, are AMD's not desert friendly?


Fan setup

1x over CPU with Zalman heat sink, full speed setting
1x out from PSU
1x in to PSU (just over haetsink
1x Out of case with sensor
1x Over geforce 4 ti graphic card (extra coupled to zalman bracket)
Northbridge has silent heatsink, ie designed to cool without fan. (Zalman)

[AllGamer]

Originally posted by her own pride
are AMD's not desert friendly?

1x Out of case with sensor


Definitely AMD are not Desert friendly
that i must agree :p

I think the problem is with that FAN over there

try to Invert it instead

:t