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Help me lower my case temp

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Nealer

Registered
Joined
Jun 11, 2001
I have an OCZ Gladiator w/ Delta fan on my 1ghz Tbird. My cpu has been getting up to 50C and 53C when the AC is off. My case temps are ussually at 39 when stressed, but at idle they get down to 35. I was wondering what i could do to get lower temps. I already bought 2 new case fans that are 36CFM/29DB to replace the old ones. I also have a system exhaust blower under the video card. What else can i do? i dont want to cut any holes or do any drilling.

I also have a 2coolpc fan inside
 

TT120

Senior Member
Joined
Mar 1, 2001
Location
Sacramento, CA.
More airflow through the case is one answer, the other is take off the side panel and point a desk fan in there.
 
OP
N

Nealer

Registered
Joined
Jun 11, 2001
I can barely take the noise with the case on... taking it off would be too much...
 
W

William

Guest
hmm. Get a better hsf that will allow you to run with your case open. A glaciator would be best, but a thermoengine with a YS Tech Fan on it would be great too. That will lower the noise by a lot and allow you to run with case open.
 

Slake

Senior Member
Joined
Jan 12, 2001
Location
Knoxville,Tn
It really doesn't sound to me like you have good airflow through your case. What little air you have coming in is probably getting exhausted through the slot cooler before it gets a chance to feed the HSF. If you don't want to cut the case, at least make sure the original vent holes in the front are drilled all the way through and you have at least an 80mm fan sucking air in through them. A lot of times case manufacturers don't drill ALL of the holes clean through. Check out the System cooling articles in the Tips and tricks section of the Home page to make sure you have proper fan placement. Even a Delta can't do the job without being fed sufficient air. Probably would run quiter if it could get a good bite on some air. IMHO
Good luck and keep us updated!
 

Hoot

Inactive Moderator
Joined
Feb 13, 2001
Location
Twin Cities
I would advise you to try my Cohesive Air Cooling. Some people are hung up on the appearance of it, but the ones who have implemented it, swear by it. If you have some time, read my article.


If that is not for you, then consider getting the nibbler and hand drill out. Remove those 80mm fans and enlarge the holes for 92mm fans. Get a pair of the Sanyo Denki "DC Mini Ace 32" 92x32mm 55cfm fans. They really deliver the airflow and quieter than most 80mm fans. If you have the Gladiator set up with the fan blowing into it, put the rear case fan blowing in and the front case fan bloiwing out. If you have the Gladiator set up with the fan drawing air out of it, reverse the flow of the case fans. You will be able to get your temp inside the case down to within 2-3C of room temp and without getting a headache from the noise. Oh yeah, lose the exhaust blower under the video card. You won't need it.

Hoot
 

SCOdoubleT

Registered
Joined
Apr 30, 2001
If your room temps are high, it is going to be pretty hard to get your CPU or SYS temps down, no matter how many case fans you have. Turn on the AC or wait until winter to use your PC :) Mine was kinda hot upstairs, so I put it downstairs where it is cooler and now my idle temps are CPU 27-31 and SYS 22-26. Under full (UT for 3 hours) load my temp is 54.
 

e_storm

Member
Joined
Mar 16, 2001
Location
Chicago, IL
what kind of ambients temps do you have? 25*C or somewhere around there? Either way, like everyone is saying, with good case flow you should be able to get the case only a few degrees above ambient.
 

AMDGuy

Member
Joined
Apr 10, 2001
Cut some blow holes in that case and you'll greatly lower temps. 3 or 4" hole saw works wonders. Have air flow in a "Z" patterin from front to rear.
 

Plat

Registered
Joined
Jun 4, 2001
Hoot

w/ ur centrifugal blower, couldn't you have put that fan on the back of the case? where the 120mm cutout was, and used a shroud to send air to hs?

i'm strongly considering doing this mod on my pc but i'd like to put the blower on the back.
 

Hoot

Inactive Moderator
Joined
Feb 13, 2001
Location
Twin Cities
I only considered this briefly during the design phase, but I have again revisited this approach. On the back of my mid-tower case, the opening is not a 120mm, but a 92mm. Not that it matters, since the bore on the blower is only 75x75mm square. It would not be much of a task to open up the 80mm circular opening to accomodate it. The biggest issue with a mid-tower is the fact that the CPU is so close to the rear fan opening. Fabricating an effective elbow duct to turn the airflow down into the HS almost immediately, is no simple task. The smoother the inside surface of the duct, the better the performance. If the duct is from corrugated material, which bends sharply easier, the airflow get disturbed considerably and loses a lot of the cohesive nature. Still, it can be done, if that is an important factor to you. What you gain in reducing the width requirement for the blower, when mounted on the side, you lose in depth requirement for it when mounted on the back.

Hoot
 

Smizack

Dead Boomslang collector
Joined
Jun 26, 2001
Location
O.K.
Why does everyone use Celcius for the temp scale?
Sorry if this sounds stupid. Just curious.
 
OP
N

Nealer

Registered
Joined
Jun 11, 2001
Well i just took the side off my case and put my 2coolpc fan outside of the case so i draws air from outside and shoots it back inside. My case temp dropped immediately down 30C, and with it my CPU dropped down to 40C. Right now the case and CPU are at 32C / 44C, and i overclocked it 50mhz using the fsb :)

Now i just need a way to get the case down this low with the panel on... Has anyone read that article about quieting the delta fan, where you put the silicone and tape to attach the heatsink? If that works maybe i could decrease the noise to what it was like with the case on.
 

Hoot

Inactive Moderator
Joined
Feb 13, 2001
Location
Twin Cities
Smizack (Jun 27, 2001 04:02 p.m.):
Why does everyone use Celcius for the temp scale?
Sorry if this sounds stupid. Just curious.

Two reasons. It is the standard for scientific data exchange and you would be surprised to learn how many regulars here are from outside the US and UK.

Hoot
 

Smizack

Dead Boomslang collector
Joined
Jun 26, 2001
Location
O.K.
Well, I figured out that there was a blend of countries here.
But I thought the perfectionists used like Kelvin or Rankin.
Or would that be too drastic?
 

cjtune

Member
Joined
Dec 18, 2000
Smizack (Jun 27, 2001 11:26 p.m.):
Well, I figured out that there was a blend of countries here.
But I thought the perfectionists used like Kelvin or Rankin.
Or would that be too drastic?

The Kelvin is the standard temperature unit for the SI system of measurements adopted (almost) internationally -no big deal really as deltaT in Celsius is the same as deltaT in Kelvins. For the British system (which is no longer widely adopted by the UK scientific/engineering community ironicly), I think it's the Rankine (same as F but with an 'offset', just like the Kelvin). The Kelvin and Rankine scales existed because scientists needed a temp scale that was independent of the properties of any material, so both the K and R unit of temperature have reference points fixed to absolute zero, as opposed to say, 0'C, which is the freezing point of water in the Celsius scale. Even the Celsius scale before 1954 was not the same as the one we are using today. Today's Celsius scale actually starts at 0.01'C, the triple point of water -a point where all three phases of water exists in equilibrium (gas, liquid, and solid). But since the difference between 0.01'C and 0'C is so small, today's Celsius scale is essentially the same as the old one.

Well, this' just a bit a science trivia.