need help with p4 1.8a temp

scottrico

Senior member
Jun 23, 2001
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I have it runnig at reg speeed @1800 and the temps are 48C - 55 under load.
I am using AVC sunflower and artic silver 3.
Any idea whats wronge here?
 

SteelCityFan

Senior member
Jun 27, 2001
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I have the TH7-II, and my 1.8A runs 42-43 idle and 50-53 load (running Seti) at stock speeds. Either the MoBo is wrong, or some of them just run hotter than others. There was someone on the HardOCP forums that said they had had 2 TH7-II's. One had voltages slightly low (like mine) and it was giving about 10-15C higher temps than the other one (voltages were ok or a little high on that one).

Mine is perfectly stable at 2.0 and maxes at about 55C. I'll stick with 2Ghz.. plenty fast for me.
 

link26

Member
Apr 11, 2002
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my cpu goes up to 56 C at 10 hours of 100% load. Looks fine to me.

intel says not to go above 66 C for my chip.
 

scottrico

Senior member
Jun 23, 2001
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I am using a epox 4sda+.

Basic setup
one hard drive
geforce 3 - clocked normal
sound card
one cd rom.
it is a gaming rig.

I can not get it stable above 2100
right now it is at 50c and I am just on this site and thats it.
no programs running.

maby I just got a bum board
 

WarCon

Diamond Member
Feb 27, 2001
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Lot of things factor into the CPU temp. First is ambient temp (room temp), then case air flow(if its weak you will have a high system temp which will directly affect your CPU temps. Think of your heatsink as being some constant value. You multiply it by your system temp to get the CPU temp.

Your 48-55C is decent if your system temps are high (35C or so)

If your system temps are lower than that then you might have some problem with your heatsink mounting.

Just remember if its hot in your room, that heat directly increases CPU temp. 5C increase in room temp usually translates to a 5C increase in system temp, which increases your CPU by 5C.
 

scottrico

Senior member
Jun 23, 2001
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I think you might be right about the heatsink mounting.
my case temp is at 30c.

I am not used to using this kind of heatsink.
I have always used amd proc.

Btw I have two fans in friont and two in back.
and the room is nice and cool.

any other idea's?

Thanks for all the help!
 

Nighthawk69

Golden Member
Oct 10, 2000
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I concur. I think your problem most likely has to do with the heatsink. If I were you, if remove it, completely clean off the HSF and CPU with rubbing alcohol to make it perfectly clean, then apply a very thin layer of Arctic Silver and reseat the HSF.

My P4 1.6A is running at 2.4Ghz right now at 1.6v and it is only 33C right now (browsing and stuff) and it can get up to as high as 44C under a full load of Prime95 and whatever else I throw at it. My system temperature is 28C right now, but it's usually lower than that.

Hope that helps...
 

SteelCityFan

Senior member
Jun 27, 2001
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I have also heard that some of the Northwoods are at a higher power consumption than others.. not sure as to the truth to this.


I was pushing 56-58C under load using the stock heat sink with the thermal pad. I removed the HS to see if it was making contact, and there were marks in the thermal pad coresponding to the P4 heat spreader... so it was making good contact all the way around. I then purchased some AS3, applied a thin layer, and reseated the HS. My temps dropped to around 55Max. About a week later, someone suggested I remove the HS, clean off the AS3 on the heatsink, smooth, rub in the AS left on the P4, and reseat the HS... effectively cutting the layer of AS in half (even though I initially just applied barely enough to cover the writing.).

Anyway, I saw another temp drop of 1-2 degrees. I barely have any at all on there now.

My HS gets a little warm, but not too much. I stopped worrying about it.



Mine also will not go past 2.1... unless I set the RAM to 3X, so I think my DRG's or whatever they call them max out at 450Mhz or so. I don't have the soldering skills to replace them with higher rated ones.


I just think some are 2+ Ghz chips thrown into the 1.6/1.8 basket to meet demand, while others are true 1.8's
 

scottrico

Senior member
Jun 23, 2001
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SteelCityFan

I think you might be right.

I reinstalled with very little as3 and it dropped only a few deg.
I think that i just have a bum chip.

I going to just leave it at 2.02 and be happy till hammer come along.
thanks everyone.
 

SteelCityFan

Senior member
Jun 27, 2001
782
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<< SteelCityFan

I think you might be right.

I reinstalled with very little as3 and it dropped only a few deg.
I think that i just have a bum chip.

I going to just leave it at 2.02 and be happy till hammer come along.
thanks everyone.
>>




I even emailed Intel on this. Their response was that it was well within spec temps, and that 67 was the max critical temp. Basically I was told to not worry about it. Even if it did get critical, it would simply slow down to cool off (got to love Intel's thermal management). You could probably run it at 65 for years touble free. I only keep CPU's for about a year and a half. With current prices falling so fast, and the fact that the TH7-II already has preset 133x4 FSB settings, a P4 2.4B+ probably is not too far away from becoming cheap enough to consider.
 

jdurg

Senior member
Jun 13, 2001
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I have a P4 1.8A running on 1.7 Volts at 2.45 GHz. (Using a Thermaltake 478 P4 Volcano and AS3.) I'm running it on an MSI 845 Ultra-ARU with 512 megs of PC2400 DDR RAM. At idle my CPU temperature is around 42-44 degrees Celsius, and under full load it runs around 58-63 degrees Celsius. (Under full load, the temp will usually spike at around the 62-63 degree mark then drop down to around 58 degrees.) My system is pretty stable, and I'm also pretty sure that it hasn't reached its full "break-in" period yet. I haven't had much time to fool around with it, but I'll give it a thorough testing when I move back home after graduating this coming weekend.
 

Barrei

Senior member
Mar 21, 2002
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:)My p4 1.8a running at 140 fsb= 2.52 ghz idles at 38-40c under intensive gaming can spike as high as 56c, running stock HSF, cpu voltage at 1.60
 

scottrico

Senior member
Jun 23, 2001
473
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The real problem is that I can not get this chip passed 2.20 and the only problem I see is the heat.
does anyone have this set-up
epox 4sda+
p4 1.8a (I am starting to wonder)
crucial 2100 ddr - That overclocks like a champ for me.
avc sunflower + as3
400 w power
2 fans frt two back

or somthing like it,
whats your temps?

also
I got this chip from Dell so maby there is something sneaky going on.
 

Thor86

Diamond Member
May 3, 2001
7,886
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My 1.6 @ 2.1 never goes up past 49.5 C under 100% cpu load. Using intel hs and thermal pad that came with the cpu.