untrusting cpu temp readings

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white.a.drew

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I have just upgrade my cpu to recommended watts, and noticed something very odd. When i was running the 450w my cpu would average about 56c under full load. graphics card would average around 85c mainly because it was having to over work itself to render properly, I have a 560 ti minimum wattage is 500 again i had a 450w. I was also running a cpu, 2 hdd's, 2 fans, and a led strip off of it. Now here's my problem, My cpu is set to a constant reception of 104.5w "even when it had the 450w psu in it". One main reason my gpu had to over work itself 104w drained right there. however now that i have the 750w psu the gpu is running smoother than ever and cooler than i ever imagined. But my cpu with the 750w still set to 104.5w oc'd by 15% is sitting at the same temp it was under load with the 450w psu, HOW????

I rambled summary. My cpu SET at a constant 104.5w With my old 450w psu in my case under load would sit at 56c No alteration to it. Now with my new 750w psu oc'd 15% under load my cpu will still max and average 56c WHY???? nothing changed really it's still set to a constant 104.5w's. Only real difference now is my gpu is now receiving proper watts

I temporarily tunned down the oc till i can figure out whats i know there's plenty of thermal paste i reapplied three days ago,
Processor AMD Athlon(tm) II X4 640 Processor, 3150 Mhz, 4 Core(s), 4 Logical Processor(s)
BIOS Version/Date Phoenix Technologies, LTD ASUS M2N-E ACPI BIOS Revision 5001, 3/23/2010
SMBIOS Version 2.4
Installed Physical Memory (RAM) 8.00 GB
Total Physical Memory 8.00 GB
Available Physical Memory 6.27 GB
Total Virtual Memory 16.0 GB
Available Virtual Memory 13.5 GB
Page File Space 8.00 GB
System Type x64-based PC
OS Name Microsoft Windows 7 Professional

and over clocked at 5% typing this my cpu is sitting at 36c
 
Solution
bignastyid
If Im reading the original post correctly you replaced your PSU which made the GPU run cooler but not the cpu correct?

Changing a PSU doesn't normally affect CPU temperatures. With your old PSU it was likely having voltage regulation issues making the VRMs work harder which increases their temperature and on a GPU the VRMs, Vram and GPU share a cooler. So if the VRMs are running hotter there is less cooling capacity available to the GPU which raises its temps. So if you replaced the PSU for a model with better voltage regulation the temp dropped as the VRMs were producing less heat. On a motherboard the CPU and VRMs don't share the same cooling so the VRMS could have been running hotter without affecting the CPU temperature.

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Saturnity

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.. The amount of wattage from the PSU coming into the processor has nothing to do with temperature. You can put 50 watts into a cpu and it will do nothing, you can put 150 into a cpu (might blow it up) but it wont get super hot, the thing that is mainly heat is your VOLTAGE. Voltage is the main factor of heat, so if you are putting the same voltage into your processor, your gonna get the same temps.

Plus 56 is not hot. 70 isnt hot. Its when you get to 90 that you want to be worried.
 
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white.a.drew

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Ummm i thought this was set for a high of 70c for this cpu
 
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Saturnity

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Set for a high? Processors arent set to anything, they do whatever temp they want, it just depends on your cooler. reaching 56 is fine, my cpu actually sits at around 56-60 while playing games.
 
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white.a.drew

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Thats the same for mine NEVER REACHES ABOVE 58c, however once it hit's around 65c or up YOU ARE FRYING your chip. You might as well through it in a frying pan on high 60c is pushing it.
And i have a stalk cpu cooler however the reason i don't understand how my processor is still sitting at the same temps As when i upgraded psu i upgraded cases to a case with two case fans both exhaust with power control, high, low, medium. Both are set to high, plus i have air conditioner/heater blowing constant cold air into the case. then there's the fact that there is brand new thermal paste on the cpu. I get that over clocking the cpu will make it hotter but with all the precautions i have taken to cool off the cpu the should be no reason it is hitting even 50c. When i can put my over any spot there is air coming out of the case and it is ice cold.... NOTE i know For a Fact there is no water in my computer from the air conditioner. I keep a filter over it for one, and for two i clean my computer components at least twice a month. so i would notice if there is any moister in the case
 
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Saturnity

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Okay I will say this once more, for a processor, 65 is not hot. Hot is 80. It hits 50c because thats what processors do, you need a better cooler if you dont want it to hit 50c, not a stock cooler. Stock coolers suck.

Your temperatures are fine. Your processor can get up to 80 and still be fine. They are meant to take this kind of heat, you shouldn't even overclock with the stock cooler. If you dont want high temperatures turn off the overclock, overclocking heats up processors a lot.


So again, anything under 80 is fine. If you dont want to go above 60 turn the overclock off or get a better cooler. Its that simple. Being under load and averaging 56c is good. 56c is not hot, 56c is not hot for a processor. 56c is not hot for a processor. 70 is not hot for a processor. 70 is not hot for a processor.


80 is hot. 80 is hot. I said things twice to make sure you understand. Your temperatures are fine.
 
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white.a.drew

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getting annoyed doesn't solve your problem nore mine yes get what your saying but again THERE SHOULD BE NO POSSIBLE WAY FOR IT TO BE EVEN GETTING THAT HOT. yes i know stock coolers suck but again that's why i have a ac unit blowing two dagree's Celsius air into my pc. i don't care that my cpu is reaching thoughs temps i want to understand how it's fiscally possible when everything in the case when you touch it is ice cold i can legit reach in and grab my graphics card under full load and it will be freezing but some how the cpu is the one and only thing that doesn't seem to cool off from if. i get it has to do with the power level from the voltages and everything but again. like you said if i don't change any of the volts and things like that the temps would stay the same. but they should go down when you add more powerful fans and a ac unit to the piction DO YOU GET WHAT I'M SAYING NOW?!?!?! yes with a stock cooler temps will be crap but even when you upgrade the other internal fans to more powerful ones and add external fans PLUS a ac unit to provide even more air flow IT SHOULD DROP..... HOWEVER that is not the case
 
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Saturnity

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Get this: If you blow an AC into an oven thats set to 450, is it gonna cool it down? No. Unless its industrial. Graphics cards themselves arent hot, what you are touching is the circuit board, the actual card is inside covered by heatsinks. CPUs will be hot no matter what. It is absolutely physically impossible to not let a processor get to 56, thats what they are suppose to be at, the only way is to cool your processor with liquid nitrogen. You could have a plane engine blowing air into your computer and it wont do anything, the ambient temperature (Temperature inside your case) barely affects the cpu temperature. If you blow a fan at the sun will it put it out? No. It doesn't work like that. A processor will reach 56, or 60, or whatever, no matter what you do. You could have the best liquid or air cooler ever, and it will most likely still be able to get up to 56. For one, your processor wont get colder than the room temperature, but just blowing cold air at it wont do anything unless you are blowing the air DIRECTLY onto the processor, not around it, directly onto it focused on a one inch by one inch spot. Adding fans and an AC unit will do NOTHING. It will lower your temp maybe 1-5 degrees but thats it.

Heres a really good example actually, if you have a car running, its over 500 degrees F, if you blow an air conditioner at it, will it make it super cold? No. It will lower the temperature maybe 20 degrees but thats it. You could have jet engines as case fans and it, will. do. nothing. at. all. except. lower. the. temp. a. couple. degrees.

I don't understand how you don't understand what im saying, its a basic concept. I will try to put it absolutely as simple as possible:

Your processor will not drop below 20C. While running anything it will not stay under 40C. You will have to fill your computer with ice or liquid nitrogen to get it colder. Blowing more air onto it, even cold air, will only drop it a couple degrees. If you don't like 56C degrees, which is not even hot at all, that's the average temperature of a processor, then get a better cooler. Even though getting a better cooler will only drop it by 1-5 degrees like I said. I can not say it any simpler.


Wait yes I can: Your processor will stay at that temperature no matter what you do. You could add a million fans and it will stay the same. Get a better cooler if you don't like the temperatures you are getting.
 
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white.a.drew

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sorry i'm tired of people not knowing what there talking about, and acting like there some big shot that knows everything. Atleast people who don't have an actual answer read it and move on I can't standd people that sit there and say the same stupid not allowed over and over if you wanna fry your cpu go for don't give other people false info and cause them to kill there computer because you don't know what your talking about i've had to fix 3 friends computers alone in the past months and a half over that stupid still not allowed Thank you i guess for removing the post
 
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The Original Ralph

The Original Ralph

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Actually wattage is a measurement of heat, fyi

to the OP, for the record i'm not the most literate when it comes to BIOS settings and how they interact with PSUs, but i was reviewing seasonic's FAQ page and noticed one FAQ that caught my attention - after installing a new PSU, if it won't turn on, seasonic recommends clearing CMOS - you might try that, it could have corrupted your temp sensors,

here's the link to the seasonic faq page, read down a bit and you'll see it, it's the last one under "Troubleshooting"
https://seasonic.com/faq
 
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bignastyid

bignastyid

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If Im reading the original post correctly you replaced your PSU which made the GPU run cooler but not the cpu correct?

Changing a PSU doesn't normally affect CPU temperatures. With your old PSU it was likely having voltage regulation issues making the VRMs work harder which increases their temperature and on a GPU the VRMs, Vram and GPU share a cooler. So if the VRMs are running hotter there is less cooling capacity available to the GPU which raises its temps. So if you replaced the PSU for a model with better voltage regulation the temp dropped as the VRMs were producing less heat. On a motherboard the CPU and VRMs don't share the same cooling so the VRMS could have been running hotter without affecting the CPU temperature.

 
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white.a.drew

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Thank you so much That is exactly what was going on i reread the specs on both psu the new psu supplies more of everything and my cpu has been sitting more stable then ever so i'm more than positive you are correct thank you. My cpu will now accept 100% over clock and max out at a temp of 54c after adjusting 72% of my bios revisions manually.... And this is with a stock cooler and two case fans. and my ac unit. like i kept trying to tell the other guy
 
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white.a.drew

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i would if i could but i clear/reset my cmos my cpu will no longer work and i don't have a temporary am2+ cpu to use to upgrade mobo again sadly.
 
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