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View Full Version : How do you guys get such a low temp


boonmar
09-15-01, 12:05 PM
I have t-bird 1.333 with giaciator heatsink, two intake fans (one in the front, one on the side). Two outtake fans. The motherboard is ASUS A7A266. I used to have thermal take Volcano II but replaced it with the giaciator(which did reduced the cpu temp by about 6C). I've been reading you guys talking about your cpu being in the 40c-50c at full load. My temp is at 56 C at no load. I'm getting this reading from the bios.

With my old heatsink the temp used to be 53c at full load. Then I upgraded to the lastest bios for my mo. Then it went up 10c. So I switched to Giaciator, but the temp is still high compared to the posting I'v read.

PS. My system is fine and stable. Why do you think mine is running hotter?

Placid
09-15-01, 12:10 PM
Asus tends to give higher readings by about 10c.

boonmar
09-15-01, 12:30 PM
some of the reading I've read said that when their machines hit 60c + the alarm on the system goes off. Does it check the bios for the temp? Then if the temp exceed certain range, the alarm goes off? Cause with mine, after playing a game for awhile, I reboot and check the bio for the temp, it can be around 65c, but everything is fine.

OoOx
09-15-01, 01:31 PM
I had the same problem with a T-Bird 1200 system that I was building a while ago. The idle temp was over 50 degrees and fulload a lilttle under 60 degrees, wich I found completely unacceptable. I changed the HeatSink +fan and did some chassi modifications and then temps dropped alot. idle is now around 37 and fulload about 45...


Here are some things to keep in mind:

- Use a quality Thermal Paste such as ArctisSilverII. smear a thin layer on the CPU core and some on the heatsink aswell (use very little on the heatsink itself, just to fill in eventual holes in the surface. you can use a razorblade to carefully remove thermalpaste from the heatsink so that you're left with a very smooth surface.

- Use a copper based (or pure copper) Heatsink. I can personally recomend the TaiSol CGK 760092 Copper Base. But I'd say that this http://www.swiftnets.com/MC462.htm heatsink is even better...

- As for the HeatSink fan.. it's a known fact that most HSF's that you get with the heatsink sux. so you'd want to change the b4 mounting the HS on the CPU. If you can stand the noise of a delta (I can't) then get one of those. However, I coose to use a 60->80mm adapter, so that I could mount a 80mm fan on the HS, wich meant better performance and less noise. You can even make such an adapter yourself. If you find that an 80mm fan doesn't fill yer cooling needs then make a 60->92mm adapter... (you get the idea). The beauty of the MC462 is that it's HUGE, with a copperbase and comes with a 80mm fan as standard *yay*. The only drawback would be the price, but I seriously think that it's worth it. If I hadn't already bought the TaiSol that I use 2day I'd get one of those gorgeous HeatSinks ;). BUT make sure you can use it on your motherboard, some manufacturers have such a mobo layout that you can't use big HS's. You can read more on the URL I posted...

- A spacious Chassi is a plus, a small chassi will be difficult to ventilate from hot air.

-Depending on where you've placed your harddrive(s) and what type they are they can add to chassi temperature. it's always a plus to try to mount them in 5,2" slots with a seperate cooler.

- Use a PowerSupply wich has 2 fans, Enermax is one company that makes em. Their models have a 92mm intake wich (depending on the chassi size ofcourse) will be placed over the CPU and help remove hot air.



I hope this will be helpfull to you ^^


///OoOx

-=UR=- Ranger
09-15-01, 04:10 PM
You might also want to lap you Heatsink till it is absolutely smooth and flat

warlok
09-15-01, 04:23 PM
to keep mine cool i leave case sides off...my basement is no higher than 20*C room temp makes a big difference im using a volcano..1.4 overclocked to a 1533 i got 44*C load

DaveB
09-15-01, 04:38 PM
I recently put a Thermalright SK6 with a 40 cfm YS Tech fan on my 1.4 GHz Athly which is running at 1.6 GHz. The system has an Antec PP352X with a dual fan setup, an exhaust fan behind the CPU, a slot cooler beneath the GeForce2 GTS Ultra card, an intake fan at the bottom front, and a driver cooler bay with two small intake fans. Intially the temps, using regular white compound were:

Idle - 43C
Max Load - 48C

I noticed that even with the case open, there was a lot of hot air hanging around the CPU. I reasoned that the CPU HS Fan was therefore mostly sucking in heated air to cool the CPU. Not good I thought, so I went to Lowe's and a bought a $10 2-1/2" (64mm) hole saw. Measured the point directly over the center of the YS Tech fan and drilled a hole. The drilling took less than a minute. Put the cover back on and took a 2-1/2" cardboard tube from some gift wrap and made a duct to bring fresh air right to the HS Fan. This took another minute or so (I just left it hanging out of the hole for test purposes). The results:

Idle - 38C
Max Load - 43C

Then I thought, I wonder how much some really good thermal compound would help? So I borrowed some original Arctic Silver from a friend. I figured since I'm the one who told him about it he ought to at least let me use a drop or two. It's a little thicker than Arctic Silver II but works exactly the same. New results:

Idle - 35C
Max Load - 39C

When I say 39C, that's only a momentary peak. The max mostly stays exactly at 38C. Anyway, the moral of the story is, get Arctic Silver and cut a blow hole in the side of the case. Don't bother with a fan, you don't need it. The HS Fan can suck in it's own nice cool outside air without any help. The next time I'm at Lowe's or Home Depot, I'll pick up some PVC tubing to finish the duct off a little nicer. Then put a nice 60mm fan grill on the outside to trim it off. The system is in the basement, so that helps since the air temp is around 19C vs. about 23C upstairs.

KrzyPrk
09-15-01, 07:58 PM
Hey Boonmar

I have an A7A too. did you get a Millenium Giaciator? cuz that's what I just ordered. My CPU runs around 59-63 degrees Celsius at idle w/ this cheap HSF.
yeah, ever since I flashed my BIOS, it increased an addt'l 10 degrees. They say that's the true temperature. Anyway, I'm looking for a performance HSF but a quiet one. I just hope that Millenium Glaciator will be satisfying.

ArticJoe
09-15-01, 08:46 PM
as you can see (read my sig below) my system specs are about the same. it makes me kinda glad to know that i am not the only person having overheating problems with the tbird and a7a266. i am ordering a thermalright sk6 soon, which will hopefully lower my temps (as listed in my sig as well) i am also going to order some arctic silver II and try that out as well. i will post later on once i get this stuff put on. davb u know that you can buy ducts for about 5 bucks from pcmods.com :) i may do that too seeing the results it gave you. like i said above i am just glad that my high temps are not an isolated case.

Phil
09-15-01, 09:09 PM
try touching the heatsink, if it isn't more than 50oC to touch then the temp is being reported wrong. How are you measuring the temp, I know that the clip on the glaciator isn't strong enough to compress the shrink wrap in senfu or similar probes, I had to strip the shrink wrap back to stop my temps soaring to the mid 60's
Also your layer of AS2, how thick was it? the weak clip won't push it out as much as other heatsinks, I've found the best way of getting a thin layer is to use a polythene bag round the end of your finger to spread it very thinly.

boonmar
09-16-01, 11:32 AM
Hey, Krzyprk

I did get the Millenium Giaciator, but one think I have to warn you using this heatsink with A7A266. The compasitor on the motherboard will get in the way. This heatsink will not fit on this motherboard unless you cut the top right corner off the heatsink. That's what I have to do.

*JEREMY*
09-16-01, 01:00 PM
Untill my temp probes come i have to believe that the a7a266 does report higher because i have reinstalled my sk6 about 5 times trying a little less and a little more thermal compound and making sure the clip is centered and i still cant get my temps down.I even made a custom airtight duct like Daveb so that i was getting pure room air and it helped a little but nothing to make me happy. I have 1 120mm and and a 80mm for intake and the same for exhaust in a full tower case.You can see what im overclocked to below but when running at stock 1.4 speed there is only a a 2 degree C difference from my below temps.I even lapped my sk6 to mirror which it was pretty close when i got it.I will not quit though, I will get these temps lower!!

boonmar
09-16-01, 01:07 PM
MaX PowerZ,

here is my specs:
1.33 t-bird, not overclocked
Geforce2 gts video
A7A266 mo
512 mg pc2100
millenium giaciator hs

idle temp 56c
load temp 61c

Why is my temp much higher than yours?

*JEREMY*
09-16-01, 01:18 PM
what kind of fan are you using on the heatsink?The fan im using on mine is not the one that came with it.The one im using runs at 7500 rpm so it is a screamer.

boonmar
09-16-01, 01:24 PM
The fan on mine is the one that came with the hs. Don't know what kind. It runs around 5500 rpm. Maybe that's the difference why your is running cooler. What other find do you have? I have 2 intake fans(1 in the front, 1 on the side of the case), 2 outtakes.

*JEREMY*
09-16-01, 01:32 PM
well, i have a 80mm on the side and a 120mm in the front and a 80mm exhaust in back and a 120mm exhaust up top.I have tried running a quieter fan on my heatsink that ran about your speed and my temps did reach the high 50's.

Sonny
09-16-01, 01:33 PM
A few of us that decided to update to the latest BIOS to be able to support CPUs rated 1.33,1.4 & ABOVE 1200MHz will have an increase in idle temps(function of the BIOS). To get lower Idle temps you might want to try some "cooling software" that really works at guess what IDLE. There are too many opinions that are available in the forums so don't need to repeat them. What you have to figure out is your LOAD temps at your hottest ambient temps & design your cooling solution from there. It's not a simple matter of slapping on a bunch of case fans. The articles of this site has so much information. Let us know when you get an improvement in cooling.;)

KrzyPrk
09-16-01, 09:52 PM
oh nooooooo

oh man, what did you use to cut it? i should be getting sometime this week. i cant believe your idle temp is only at 56 C. I was hoping for low 50s.

hmm...maybe i should return it or sell it now.

watmann
09-16-01, 10:16 PM
I have the Swifty 462A and am running VCool. I have 1 80mm fan in the front and 3 exhaust fans. My temps are 33 C idle and 38 C load. My room temps are around 29-31 C depending on the weather. I would highly recommed the Swiftech 462A!! Before I bought it my temps are 55 C idle and 63 C load....

Genis B
09-17-01, 01:25 AM
Originally posted by warlok
to keep mine cool i leave case sides off...my basement is no higher than 20*C room temp makes a big difference im using a volcano..1.4 overclocked to a 1533 i got 44*C load

but wouldn't that give dust to the comp? i am doing it myself and found it very useful, just worrying about the dust....

bdf24
09-17-01, 05:43 AM
My 1.2 gig on my Asus A7A 266 idled consistantly around 60c all the time. I tried a cheap coolermaster HSF, watercooling, & last an SK6 with ASII applied. My temps never really changed. The best I ever got them was the lowest of 57c with watercooling. With the SK6 it would idle around 59c all the time. I pretty much gave up on monitoring the temps. The system was never unstable. It ran fine so I left it. I honestly believe that the only true way to measure the cpu temps on the A7A is with a seperate thermal probe.

Tomas
09-17-01, 08:12 AM
Originally posted by KrzyPrk
Hey Boonmar

I have an A7A too. did you get a Millenium Giaciator? cuz that's what I just ordered. My CPU runs around 59-63 degrees Celsius at idle w/ this cheap HSF.
yeah, ever since I flashed my BIOS, it increased an addt'l 10 degrees. They say that's the true temperature. Anyway, I'm looking for a performance HSF but a quiet one. I just hope that Millenium Glaciator will be satisfying.

So that will say all asus boards run over 10c higher than any other board with the same hsw?? Then min is really in danger.....

I got the 1005rev bios, havent flashed too 1006 yet.

Mbm5 shows around 52c idle 55c loaded, same does bios shows.... While asusprobe shows exactly 10c higher than both bios and mbm5. thats like 65c. Had temps up to 60c one hot day here too which means its running on 70c if its true thats the real temp?????? This cant be true can it??

When i have a housefan blowing into my chase its running at high 40s idle and a little over 50c loaded which i think is ok, but if its true that the new bios which shows 10c higher is the right one im really in trouble:(

Then how come my abit kt7 shows like 40-50c with the same hsw??

The hsw is a globalwin fop38, cpu 1.4@1544mhz 1.85v rock stable.

Can someone confirm if i will get a 10c increase in temps if i flash my bios too 1006??? And is that temp more accurate than 1004/1005 rev?

boonmar
09-17-01, 08:52 AM
KrzyPrk,

I don't know anything about tools, but a friend of mine at work mentioned that he has to cut his heatsink for it to fit on his mb. I brought it over to his house and he has this little round cutter looks like a quarter that attach to a drill. The "quarter looking" that spins which broke a couple times but enough to cut just a bit into the hs. Then we just use a saw. Took about 1/2 hour. Then we sand it down. If you look carefully, the hs has two pieces. One being the heatsink (bottom) and one is the fan (top). We only cut the heatsink part.

boonmar
09-17-01, 08:56 AM
KrzyPrk,

one more thing, last night I took the fan from my volcano II heatsink and placed it on the outtake hole in my case. The case that I have has a outtake hole for 60 mm fan right next to the processor. My idle temp was 56c now it's at 52c.

KrzyPrk
09-17-01, 03:36 PM
hey Tomas

Sorry, I forgot to mention that I have flashed from 1002 to 1005 then to 1006. So, it would be reading cooler if you have version 1002 but inaccurate. Since you have the version 1005 then readings should be correct.
Regarding all Asus boards readings, I dont think so cuz I also have an A7M which reads around 50-52 degrees Celsius w/ a Thermoengine. I have placed that on the A7A and I dont get that kind of reading. It's still on the high 50's (59).

Boonmar

With my old heatsink the temp used to be 53c at full load. Then I upgraded to the lastest bios for my mo. Then it went up 10c. So I switched to Giaciator, but the temp is still high compared to the posting I'v read.

What version did you upgrade the BIOS from?

Anyway, thanks for the tip. Boy, I gotta find a faster way of cutting it if I do decide to keep it.

Tomas
09-17-01, 06:31 PM
Originally posted by KrzyPrk
hey Tomas

Sorry, I forgot to mention that I have flashed from 1002 to 1005 then to 1006. So, it would be reading cooler if you have version 1002 but inaccurate. Since you have the version 1005 then readings should be correct.
Regarding all Asus boards readings, I dont think so cuz I also have an A7M which reads around 50-52 degrees Celsius w/ a Thermoengine. I have placed that on the A7A and I dont get that kind of reading. It's still on the high 50's (59).

Boonmar

Thx for the reply:) That made me a bit more relaxed as i know it aint in danger of frying:)


What version did you upgrade the BIOS from?

Anyway, thanks for the tip. Boy, I gotta find a faster way of cutting it if I do decide to keep it.

KrzyPrk
09-17-01, 09:39 PM
hey Tomas

No problem if your talking to me. I'm still not sure if youre talking to me or boonmar cuz it was followed by his name. haha

Anyway, I just noticed that you have and were talking about the A7V and not A7A. I was just talking about the A7AsI have updated from 1002 which was quite old. Also, your BIOS ver 1005 is pretty recent from 06/06/2001 (got that from Asus site). So, I'm not 100% sure bout your readings but I'm sure it's fine.

caball88
09-17-01, 09:50 PM
i have same problem running a7a with 1.4 Tbird. the temp is like 63 C. when i read the posts here all i see is like high 30's and low 40's. is the asus temps really wrong. when i feel the heat sink its warm. and not hot.

KrzyPrk
09-17-01, 10:01 PM
ok Kewl

I should be receiving my HSF tomorrow. I just tracked it online.

Boonmar, how's everything w/ the temperature? I'm not sure if I wanna cut a piece from it. I'm just worried that it's not gonna perform the way it should. If it makes no difference then I would think of giving it a try.

KrzyPrk
09-18-01, 06:37 PM
OH man`!

I just received it and it doesn't fit like you said it would.
I guess I didnt want to believe it. :(