Duron/Tbird Temperatures. (Mike need your expert opinion)

[Subversal]

Okay I've seen some temps on overclocked Durons/Tbirds people have posted here and at various other sites. Most say they run under 40C full load
(one guy tells me off and say his temp never goes above 34C fl with a ABit KT7-Raid Duron 600@1050/1.8v w/ FOP38)
with a Duron@1Ghz or a Tbird@1.1-1.2GHz... can this be in any way accurate? I see around 43C fl (prob a bit higher) with my Duron 800@1000/1.85 and FOP38. He says his room temp is 67... he has 3 case fans (one intake 120mm, two exhaust 80mm) and he never gets above 34C after Prime95,seti, RC5. How can this be possible? His ambient temp has to be 14C? On this other message board almost everyone posts temps under 40C with outrageous OC's and high voltage... I'm just miffed at all this wide temps... can someone set me straight? Mike ?

 

[SIGKILL]

I know how you feel. My Duron700@930 always hit the 50s C under a full-load (with the sisoft burn-in app). So, I'm running it without the case to bring down the ambient case temp to 23C temp. Another thing is that I have to up my Vcore to 1.825V for my system to boot successfully.

You should have a look at the CPU database at http://www.overclockers.com/. Actually, quite a few of them run their system in the 50s C range when OC'ed to 1Ghz.

 

[006agent]

it is all about the duron..i have some 700's that run 1000 at 40c full load.
and i have some that just burn at 56c.

i am running my duron 700 @ 1050. 27c idle. 44c full.
i have a gorb. one 80mm pana. blowing direct on it. then a 92 mm antec sucking the heat out.

my case temp is 26'c idle. 29'c full.

good luck man.

 

[Subversal]

<< You should have a look at the CPU database at http://www.overclockers.com/. Actually, quite a few of them run their system in the 50s C range when OC'ed to 1Ghz. >>



Exactly... I know 50C isn't a bad thing wiht Durons/Tbirds when overclocked but these insane 34,35, sub-40C temps bother me. One by one I see &quot;I'm running under 40C fulload with my FOP38&quot; when theortically they can't.

 

[Mikewarrior2]

I'm happy you guys think i'm an expert, but i'm not.. i'm still learning lots about this stuff.

As far as this guys temps, they are possible. With very good grease and a nice-smooth heatsink, assuming his ambient case temp is no mroe than 3C higher than his room temp. He is at the overclock level where the ABIT UL bios compensation works well in approxiamting core temp.

Not so sure about his t-bird 1.2ghz temps, though... If he's getting 34C, then its being underread by an awful lot. But then again, because the compensation is not linear in order to correct the compression of socket-thermsitors, the compensation does not do enough at high-overclocks.

Any t-bird 1.1ghz or higher reporting temps of sub 40C on a UL BioS Kt7 are probably under read. One thing that does play a role more-so in socket-thermistor temps is ambient case air temp... he seems to have very low temp, which could also be skewing the results a bit.

Hope this helps!

Mike

 

[Mikewarrior2]

ALso, their readings are accurate for where htey are reading, save air inteference(ie interaction with socket-air).

That does not mean the readings are accurate representations of core temp.


for example, a UL bios Kt7.

You get a 2-4X temp change compression... Let's assume 3 for the sake of an example.

Duron 1ghz 1.85V... Core temp changes 15C, Reading shows 5C, UL bios adds 10C. You get a fairly good approximation.

Tbird 1.2ghz 1.85V... Core temp changes 25C, reading shows 8C, UL bios adds 10C. You're underreading core temp by 7C.

(all numbers pulled out of my head... ).


Mike

 

[Mule]

The most important thing about CPU and case temps is airflow. I had a normal 80mm exhaust on my 1.1 Ghz Athlon on A7V and my temps were 44C IDLE 48C Max, I then went to a quieter panaflow fan and it jumped to 49C IDLE 53C MAX. I guess if the guy had 2 very powerful exhaust fans it could have been in the 30's. Also Durons produce less heat then athlons but i don't know at 1.8 volts.

He might have also modded his FOP38 with a 80mm or 92mm fan with some artic silver??

 

[Subversal]

Okay Mike... I have almost the exact same setup as him... (3 case fans, FOP38, Arctic silver) yet my temps are 10C above his even with my MSI board (which if I remember correctly is inaccurate, so my temp could be 50-53C instead of 43C fl). My room temp is 67-70 and my case temps is around 70-73.

 

[Subversal]

<< My 1ghz tbird is at 1.85v = 34c at 20c room temp. Normal room temp (75f) my cpu runs at 40c. This is on an Asus A7V with pep66 (19cfm cuz my delta 38 is throtted) >>




What he just told me... waiting od the exact specs of his cooling setup.

 

[Mikewarrior2]

Hmm... that's very odd... Is he using a pre-UL bios?



Mike

 

[Subversal]

Still waiting on him to get back to me. Could the Pro2-A record temps higher rather than lower actual temp?

 

[Dee67]

1.2ghz tbird here, asus a7v, fop38 4 case fans in antec sx830, my full load temps after running for a few days straight are 45c chip and 26c board.

 

[trmiv]

I'm on a KT7-RAID with the WW bios. Duron 650 at 945(105*9) at 1.85 volts, FOP32-1 with Ultra Silver, YS Tech fan. When my case temp is at 26c, my CPU temp is at 44c under full load with OGR running, or by playing unreal tournament (which usually causes the case temp to rise a bit because of that smoking Geforce GTS). I'd say my room temp is around 21-23c, but I'm not sure.

 

[Subversal]

Thanks guys for the temps. Guessing anything is possible and maybe I should re-evauluate my cooling setup. Thought 3-4 exhaust fans (2 80mm, two on my enermax) and one 120mm intake was sufficient... getting right now a 21.2C case temp. CPU idle was reading 37.9 goes to 43C fl... but can't really trust the pro2-a readings. In Sandra it reads 39.2, in Hmonitor it reads same as Sandra and in MBM5 it reads 38C.

 

[006agent]

mount a 80mm by the cpu. blow the air to other fans if possible to create a postive pressure..

good luck

 

[Subversal]

Okay I have two 80mm next to the cpu (exhaust) plus the enermax fan sucking air from the cpu and the outer PSU fan blowing it out. The 120mm is modded to my front bezel (En 7237) blowing air in. I also have a small 60mm fan on my northbridge (right next to the cpu).

 

[Muerto]

My Duron 600 usually hovers around 48C at 800MHz. It runs at 40C at 600MHz. I don't know how people can get a 1GHz+ CPU under 40C. That just seems impossible to me. I think it's more likely that the temperature isn't being reported accurately.

 

[Subversal]

Me neither Muerto. Their full load temps are lower than my idle temp, now thats crazy.

 

[Dan]

My Duron 700 runs stable at 1083MHz on a KT7 with the temp usually at 39C. I use a Cooler Master DP5-6H11 Heatsink/Fan.

Two nights ago I ran a CPU stability test for 90 minutes and then checked the temp: it was 41C. The temp was reported at 41C by Via's hardware monitor, PC Health (bios) and SiSoft Sandra 2001 Pro.

I have an Enlight 7237 case with:

80mm Dynaeon DF1208SH intake fan, lower front
80mm Dynaeon DF1208SH exhaust fan, upper rear (below P/S)
80mm Dynaeon DF1208SH intake blowhole
80mm Dynaeon DF1208SH exhaust blowhole

I have also drilled out the vent holes in the front bezel to make than approximately 4 times larger than stock.

 

[Mikewarrior2]

Subversal,

Anything is possible with Socket-thermistor readings, adn they can be &quot;manipulated&quot; rather easily. That's part of the problem.


Mike

 

[SIGKILL]

My Duron700 runs just barely stable at 950Mhz (9x105Mhz) with an idle temp of 28C, and 43C at full-load. Unfortunately, the machines crashs/reboots whenever I attempt to run a memory benchmark burn-in (sisoft). The CPU and MMX burn-in benchmark doesn't seem to bother the machine. I've got 2 Kingston PC133 ValueRam. I had to push the Vcore, and Vio to 1.85V, and 3.35V respectively.

Can anyone suggest what I might be able to try short of getting new PC133 SDRAMs to try with?

 

[Subversal]

Sigkill what mainboard and BIOS are you using?

Mike,

I guess I understand that. He just told me he has 5 case fans plus a 120mm fan mounted to the side panel blowing cool air onto the CPU... so hes got a 120mm+Delta on his cpu. I'm about to lap the FOP38 and see if this helps my temps at all. I'm not too concerned about my temps just like to know how others get temps much lower than mine with similiar setups.

 

[SIGKILL]

I'm got the a Duron700, KT7. I was using the BIOS UL before, because the later version didn't like the Aureal A3D card. I've replaced the A3D with a SB PC512, and running the WZ beta 01.

I'm thinking of greasing up my Northridge Chipset, and see if I can OC the FSB just a bit more. As far as the SDRAM, I've got &quot;Nanya&quot; SDRAM on one stick, and premium &quot;Infineon&quot; ont he other stick. I tried to just run with the &quot;Infineon&quot; but the machine still crash/rebooted.

 

[Subversal]

Have you tried running at 100x9.5? Also, yeah I've heard many people who have cooled their northbridges and achieve stability so try that as well.